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1 Jan 08        4 Hours        Total: 1670

Happy New Year.  Approaching the end of five building years.  Gotta get with it!  Hmmm ... I think I said that last year.

More work on filling and sanding the elevator tips.  Also, the left elevator needs rebalancing so we drilled out some lead from the counterweights and covered the hole with fiberglass after filling the cavity with a resin/microlite mixture.

 

2 Jan 08        3 Hours        Total: 1673

The glass tips are beginning to look good.  Still a lot of filling and sanding to do.

 

4 Jan 08        4 Hours        Total: 1677

Ordered the Garmin SL30 from SteinAir.com and he is making the harness for it - $3500.  It won't arrive for 2-3 weeks.  Also ordered the Becker transponder from Rollison Airplane Co (airplanegear.com) for $1775.

 

5 Jan 08        4 Hours        Total: 1671

The prop control does not have enough authority to get full travel on the prop governor.  The only way to get additional throw before hitting the throttle quadrant stops was to redrill the clevis attachment hole in the prop lever for the prop cable.  Nelson marked it and we drilled a new hole that gives greater governor movement for the same amount of lever movement.  It was as high as we could move the hole and it still wasn't enough, so on the phone to MT Propellors of Deland, FL to ask if they had encountered the problem before.  I've heard of other builders having the same problem, but the guy I talked to at MT (Urgen) had not heard of it.  He said we must have full authority to the high RPM end and we can accept not quite reaching the stop on the low RPM side.  We now reach the high stop and are about 1/8" off the low stop.  Torqued and safety wired the governor.

PropGov06.JPG (511870 bytes) PropGov05.JPG (527855 bytes)

 

7 Jan 08        4 hours        Total: 1675

We started to work again on wiring the CHT and EGT probes and realized that it is time to mount the exhaust pipes for good.  We gathered all the parts together and remembered that we should use anti-seize on the studs.  But, we don't have any that is suitable, so that will wait for another day.

 

8 Jan 08        3 Hours        Total: 1678

Nelson did more work on the elevator tips - filling and sanding the glass.

 

 

9 Jan 08

No work on the RV today.  We spent today doing fabric patches on the Pacer.  Tomorrow we'll finish the fabric work.

The Becker transponder arrived today.  Will wait to install it when the SL30 arrives.

 

10 Jan 08        3 Hours        Total: 1681

Worked mostly on the Pacer today, but we did install the exhaust pipes and EGT probes on the RV.

 

11 Jan 08        2 Hours        Total: 1683

Final touchup on the Pacer and ordered the VG replacements.  Cut the firewall hole for the engine sensor wires (19 of them) and decided where to route the engine ground, starter and alternator wires.  We'll use #2 welding cable for the starter and engine ground wires and #8 for the alternator wire.  I ordered a larger SS firewall passthrough for the starter wire along with the Zaon MRX Traffic Monitor, CO Guardian and XCOM Intercom.  When those and the SL30 arrive and are installed, the panel will be essentially finished and we can paint it and install it in the airplane for the last time.  Then we'll be able to rivet on the top skin and get started on other things such as the cowling and canopy.

 

12 Jan 08       4 Hours        Total: 1687

More sanding and filling on the elevators.  Also did some more wiring planning.

 

17 Jan 08        4 Hours        Total: 1691

Removed the screws that hold the main battery box to the bracket in order to nutplate them.  Assembly of the battery mount will be much easier with the battery box nutplated.  We also made and installed the short #8 wire from the 80A CB to the battery positive. Wiring003.JPG (547378 bytes)

 

 

19 Jan 08        3 Hours        Total: 1694

The elevator and HS tips are almost complete.  We're now wishing we had attached the elevator tips with #6 screws, but we'll have to save that for the next plane.  Nelson has them almost complete.

Routed the P-Mag wires through the firewall and removed the mags for shipping to TX for the latest updates.

The following series of photos shows the progress of the elevator tips, but they can't describe the amount of work involved.

StabTips01.JPG (532830 bytes) StabTips02.JPG (539082 bytes) StabTips03.JPG (504551 bytes)
StabTips04.JPG (526364 bytes) StabTip05.JPG (531514 bytes) StabTip06.JPG (522841 bytes)

 

21 Jan 08        4 Hours        Total: 1698

Installed Becker transponder.

Panel16.JPG (535449 bytes) Panel17.JPG (530787 bytes) Panel18.JPG (520291 bytes)

 

22 Jan 08        4 Hours        Total: 1702

Routed wires for elevator trim.  Sorted out the BMA EFIS One wiring harness.  Found a battery shop to make a four foot #2 welding cable with one 90 degree end for the starter cable.  It fit just right.  

 

23 Jan 08        6 Hours        Total: 1708

Good progress today.  A little work on the elevator tips.

Made an alternator B lead wire from #8 wire and routed the starter cable along with the alternator B lead, the alternator control wire and warning light wire.

Wiring008.JPG (530689 bytes) Wiring009.JPG (533642 bytes) Wiring007.JPG (546608 bytes)

Lots of wires going everywhere - and nowhere.

We reinstalled the instrument panel and sized the pigtail for the EFIS 1 to transponder connection.  I'll get those pinned tomorrow.  Nelson is getting a 1/4" brass nut for the AFS OAT probe and we'll mount it in the NACA scoop under the right wing.

Wiring006.JPG (529416 bytes)

 

24 Jan 08        4 Hours        Total: 1712

Wiring010.JPG (530767 bytes) Nelson made a bracket for adel clamps for the starter cable and fuel line.

Left photo shows the attachment point (three threaded holes in engine block) and right shows the bracket with adel clamps for fuel line and starter wire.

Wiring011.JPG (526833 bytes)
Alternator01.JPG (512153 bytes) We had to adjust the alternator B lead wire and control wires to allow for the heat muff intake duct.  Tightened the alternator to spec by tightening the 3/8" belt until the pulley will not slip using 13 ft-lbs of torque.  Installed the RCP throttle bracket for the last time (sure!) and began installing the console frame. RCPthrottle01.JPG (509457 bytes)

 

 

26 Jan 08        6 Hours        Total: 1718

Pinned the BMA EFIS One harness.  They don't offer harnesses for the Gen 4 (don't know why) so rather than discard the $450 harness I bought for the Gen 1/3 gold box, I decided to use it for the EFIS One.  Got it all wired and tested for install but couldn't locate that final wire - wire # 26.  It finally dawned on me that I'm pinning a 25 pin connector!  I had beautifully pinned a 25 pin connector according to the pin out diagram for a 26 pin high density connector.  No wonder I couldn't find the 26th wire.  So, tomorrow, it's back to square one.

 

27 Jan 08        4 Hours        Total: 1722

SafetyTrim01.JPG (512247 bytes) Safety Trim is made by a newly formed company called TCW Technologies and it is a trim mixer that helps solve a runaway trim problem.  I'm not worried about runaway trim, but I like the other features is offers.  In particular, it allows me to set an airspeed at which the trim speed will switch from fast rate to low rate.  Other RV-8 guys tell me the trim rate is good for the traffic pattern (slower speeds) but it is too quick when flying at higher speeds.  So, the Safety Trim uses an airspeed sensing switch to change the trim speed.  Should one have runaway trim it stops the runaway in 3 seconds and permits you to reverse the trim.

Removed all the pins installed yesterday and I'm standing by now until I can purchase a 26 pin HD connector.

Removed the Ariel Trim Mixer and installed the Safety-Trim.  I had to remove the old Ariel bracket and modify it for the Safety Trim.

 

29 Jan 08        6 Hours        Total: 1728

Sorted out the AF-3400 EM wiring.  Added nutplates for adel clamps along firewall to accommodate the engine sensors wiring.  Also determined the routing for the P Mag wiring.  The P Mags come with an automotive style wiring and we changed it to aircraft grade 18 gauge wiring.  Shrink wrapped some of the wires to get a cleaner look.

Talked to Stein Air and added several items to the SL30 order.  They promised it to me by the end of the week.  Everything is waiting on the radio.  Once the radio arrives, we can cut the hole for it, get it installed, then remove everything from the panel and rivet on the top skin.  So, we're anxious to get the radio.

 

30 Jan 08        5 Hours        Total: 1733

SafetyTrim02.JPG (514450 bytes)

Nelson graciously modified his bracket made to support the starter cable and fuel injector line to accept Eric Jones' Whackjack (http://www.periheliondesign.com).  The Whackjack is designed to absorb the energy from a load dump if the alternator should suddenly be turned off.  It should protect the electronics.

I spent the day ordering parts (it's hard to find a 26 pin HD male Dsub connector) and sorting out the AF3400 wiring.  Also worked on wiring for the Safety Trim and got the control box remounted (see at left).

 

 

2 Feb 08        3 Hours        Total: 1736

WhackJack01.JPG (535541 bytes)

Nelson got the Whackjack installed and wired to the alternator (see left).  He also bought a #2 welding cable to use for the engine ground wire.  He torqued the alternator wiring and the starter wire at the starter end.

We need to remember to run the #8 wire for the aft battery.  After studying the electrical diagrams today, it is obvious that the aft battery should never be used to start the engine.  Thus, if only the main battery is used to start the engine, the standby battery can easily be wired with #8AWG and we can fuse the wire.

I got a reply from EPI telling me the red cube fuel transducer must be in line after both the engine-driven and electric fuel pumps.  So, we're looking at how to best make the change.

 

 

5 Feb 08        6 Hours        Total: 1742

Nelson worked on installing CO Guardian and doing some finish work on the elevators while I worked to install the cable for the alternate air.  The CO Guardian will be located by my left knee above the Wemac air vent. COGuardian01.JPG (602900 bytes)

 

6 Feb 08        5 Hours        Total: 1747

Intercom02.JPG (611951 bytes) We worked on sanding the elevators, installing the control cable for the engine alternate air, and locating the Icom antenna switchbox.  The SL30 still has not arrived from SteinAir.  I don't know what the problem is.  The Icom Intercom arrived from Australia and I think I'll install it below the EFIS Lite control panel.  The intercom requires only holes to be drilled for installation. Intercom01.JPG (533799 bytes)

 

 

7 Feb 08

Kevin took the Pacer to Tyndall AFB to bounce around in while he's doing his F-22 training.  He got a cool photo with the Pacer alongside the Raptor.  The Pacer is much better looking!  But, I have to admit the Raptor avionics are more modern.

Raptor-Pacer.jpg (3228707 bytes) F-22 Cockpit.jpg (204982 bytes)
Pacer looks great next to the Raptor An example of the Raptor cockpit

 

7 Feb 08        4 Hours        Total: 1751

Nelson did more fine sanding of the elevators and they are practically done.  We finished up the alternate air control cable, installed the Icom Intercom, did more wiring planning, and installed the Icom antenna switchbox.

AltAir01.JPG (523340 bytes) I made a mistake by using a non-locking control cable on the cabin heat, so when I ordered the one for the engine alternate air, I bought the T handle push button locking cable.  I may change out the cabin heat cable.

Right shows the bundle of engine control cables.  These all needed to be in slightly different places due to restrictions fore and aft of the firewall.

AltAir02.JPG (536979 bytes)
AntSwitchbox01.JPG (508569 bytes) I bought an Icom antenna switchbox that is designed to allow one to use a handheld radio with the aircraft external antenna.  You can't just connect two radios to the same single antenna because accidental transmission from both radios will damage one of them.  So, this switchbox interrupts the signal from the main radio when the handheld is plugged in.  The plug will be on the console by my right knee.  AntSwitchbox02.JPG (521765 bytes)

 

8 Feb 08

Had to drive to Tampa to pick up the SteinAir and P Mags shipments - both went to the old address.  My initial look at the SL30 mounting rack (they call it a tube) indicates it will not fit below the EFIS One as I planned.  No time to look at it tonight in more detail.

SL30-01.JPG (518386 bytes) SteinAir isn't the cheapest for purchasing a radio, but they are easy to work with and very competent.  They readily accept phone calls to discuss the installation.  Also, when I feared the radio would not fit, they offered to take it back.  Hard to beat that kind of service!

Left shows the radio as shipped to Stein and to right shows the wiring harness that SteinAir added.  It's especially nice when a company includes a printed copy of the installation and operation manual.  So many companies are switching to manuals being available only via internet downloads.  I hate that!

SL30-02.JPG (540605 bytes)

Wiring12.JPG (543323 bytes)

I sure like doing business with Brad Dement at EMag/PMag in Azle, TX.  I shipped the PMags back for the latest update and they promply returned them.  He keeps super records and knows exactly what each customer bought.

To avoid splicing wires together, I changed out the factory wiring (which was automotive style) and replaced it with same gauge Tefzel wiring.  I covered them with heat shrink and had a continuous run into the cockpit.

I'm taking the tach reading off the right PMag for the AF-3400 indication.

Wiring13.JPG (552676 bytes)

 

9 Feb 08        4 Hours        Total: 1755

Cut the opening in the panel for the new Garmin SL30.  Lots of holes in the panel now.

SL30-03.JPG (512971 bytes) PanelCutouts08.JPG (524933 bytes)

 

14 Feb 08        3 Hours        Total: 1758

Nelson devised a strap to hold the back of the SL30 and also made angle brackets to connect it to the instrument panel.  It looks like it will fit after all.  I sent SteinAir a note telling them it should fit.  Also remounted the P Mags.

SL30-04.JPG (542011 bytes) The brackets to hold the aft end of the SL30 are clamped in place on the left.  They will be attached with screws to both the rack and the panel.

No, the blue tape is not the strap to support the back of the radio.  We are making an aluminum strap for each side of the radio.

SL30-05.JPG (552500 bytes)

 

15 Feb 08        6 Hours        Total: 1764

Nelson worked on making the SL30 straps while I did the wiring for the P Mags.  Also did the pin outs for the EFIS One to transponder connection.  That took more time than expected since I made a mistake by crimping on male pins instead of females for the transponder DB25.

It's nice to throw in an occasional overview photo.  Just look at that beautiful MT prop and spinner. OverviewFeb08.JPG (485346 bytes)

 

16 Feb 08        9 Hours        Total: 1773

SL30-06.JPG (512706 bytes) Good progress today on SL30 installation and harness wiring.  Nelson finished up the SL30 support straps and then began work on fitting the console switch panels.  The switch panels are going to be a challenge to install because there is little room to install the nutplates for attaching them and match drilling will be difficult because of the tight fit to the fuselage side. Panel21.JPG (512527 bytes)

I got the wiring harness for the EFIS 1 DB26 serial connection wired.  But, I forgot to put heat shrink on the wires before inserting them.  I could pull them all out and put the heat shrink on, but I think I'll try to find a work around.  Maybe use some of the silicone tape to wrap and protect the wires as they enter the protective case.

 

17 Feb 08        9 Hours        Total: 1782

Whew!  Lots of tedious work today.  Nelson worked on the left and right switch panels.  Lots of tedious fine tuning to make them fit.  The nutplates barely fit and he had to use one lug plates.  They turned out very good.  The switch panels are made of .032 sheet and we'll use button head screws to hold the panels on.  In addition, I'm ordering plastic panel overlays that are reverse engraved to fit over the panels.

Photo shows the switch panels on consoles.  This photo makes the panel look gutted and in turmoil.  But, actually it is coming along nicely.

Panel22.JPG (520545 bytes)

I worked the entire day on wiring the harness for the SL30 and EFIS.  Not complicated - you just have to take you time and think through each step before acting.  Also, made AWG14 wires for the fuel boost pump.

 

18 Feb 08        8 Hours        Total: 1790

Got the console switch panels drilled for the switches.  Devised a plan for rerouting the fuel lines to put the fuel flow transducer in the correct position in the fuel flow process - that is, downstream of all pumps.  A phone call to Blue Mountain revealed that the harness that SteinAir made was all that's needed for the connection to the EFIS One!  I had spent hours carefully sorting, heat shrinking, and pinning the wires for the SL30 connection only to discover that I needed to remove them all.  Apparently the EFIS receives all nav info from the SL30 through a serial connection that has only 3 wires.  So, all my work was wasted.  Oh well, a good learning experience.

 

19 Feb 08        11 Hours        Total: 1801

Finished cutting all holes in the switch panels.  Wired the fuel boost pump.  Installed some of the switches to check for fit and clearance.  All looks good.  Had to add another conduit to the main battery to accommodate more ground wires to the forest of tabs grounding point.

SwitchPanels01.JPG (520078 bytes) Left shows the console switch panels after we drilled all of the mounting holes.

Right shows the left one in place.

SwitchPanels02.JPG (520427 bytes)
SwitchPanels03.JPG (471394 bytes) Left switch panel with fuel boost pump switch installed along with the (stupid) ELT test panel and AOA dimmer and test buttons.

Right switch panel with several switches installed and two of the three cockpit light dimmers.

I'll be getting plastic overlays with reverse engraving.

SwitchPanels04.JPG (488870 bytes)

 

20 Feb 08        6 Hours        Total: 1807

Drove to Orlando today to get fuel line hose and fittings to use for moving the fuel lines so the fuel flow transducer reads correctly.  We got those together, thermo-sleeved, and installed.  They required additional clamps - which are a challenge to install in tight quarters.

FuelHose01.JPG (504855 bytes) FuelHose02.JPG (525230 bytes) FuelHose03.JPG (507298 bytes)
A maze of stuff, but the fuel hose from the firewall union to the engine-driven fuel pump is easy to pick out.  This was rerouted so the fuel flow transducer would be downstream of both fuel pumps. Here is the fuel line from the engine-driven fuel pump back to the FF transducer. And then the fuel continues from the far side of the FF transducer to the fuel injector throttle body.

Cut the holes for the master caution and alternator warning lights.  I didn't want them shining directly in my eyes (they're LEDs) yet they had to be noticeable day and night.  I believe the chosen location will be good.

Ordered a DB15 connector over the internet because no local stores carry them.  The Xcom intercom came with a DB15 but it has solder pots and I wanted a crimp-style connector.  I'll get the intercom wired when it arrives.  For now, I'll wire the AOA - tomorrow.

MstrCaution03.JPG (511299 bytes) MstrCaution01.JPG (509548 bytes) MstrCaution02.JPG (532281 bytes)
These were the LED choices for a master caution (powered by the AF-3400 engine monitor) and the alternator out light.  The right one's too big, the left one's too small, but Goldilocks found one that was just right.  Actually it was Nelson who found it. The location is out of the way and yet noticeable.  They both look red, but one is amber.  Red will be the caution light and amber for the alternator out. Here they are with direct light.

 

21 Feb 08        8 Hours        Total: 1815

Nelson got a lot done on the fuel lines.  We ran the fuel boost pump to check for leaks and to check that it produces good pressure.  We sucked fuel out of a gas can and the connections check leak free.  So Nelson mixed up some Proseal and sealed the line from the fuel pump vapor box to the firewall.  He also added a number of clamps needed to secure the fuel lines forward of the fuselage, torqued the fuel flow transducer and secured the electrical wire for it.

I worked on more wiring issues.  I'm waiting for a DB15 connector to come.  I couldn't find one locally so had to order on the net.  They are hard to find because they were used mostly for older Mac computers and there is little demand for them now.  The DB15 is used to wire the intercom.  I ran the wires for the aft battery and contactor and I'm deciding where to mount the Schottky diode between the main and standby busses.  We're heat shrinking most of the wiring so it has a neat professional appearance.  The firewall forward is looking very nice with Thermo-sleeved hoses and heat shrinked wires.

 

22 Feb 08        12 Hours        Total: 1827

Mounted the shunt on the side of the aft battery box.  I'm going to have two amp measurements - one is the HE device which measures the amps from the alternator and the shunt which measures the load on the standby battery.  Also ran the #8 wire for the aft battery to the bus.  Worked on routing of electrical and sensor wiring FWF.  Got many of the wires heat shrinked and routed with clamps installed.  Connected the manifold pressure wiring.  Had a decision session on how best to route the wires going to the wings.  The placement of the main spar in the RV-8 makes routing wires fore and aft clumsy.  To keep them hidden requires going aft behind the cockpit and then back forward.  We're looking at a means to provide a conduit that will not look too bad and provide much shorter routing o the wires.  Decided to route the strobes wires and realized the best place to route them requires removal of the aft floor panel and flap weldment.  I thought those had been installed for the last time - ha!  Anyway, got it in and routed and now I have to add some nutplates for clamps to secure the wire.

Shunt.JPG (502048 bytes) The Aft (standby) battery uses a contactor to power the bus (vs the mechanical switch I have for the main battery) and the load on the standby battery will be measured by the inline shunt.
Some late night work - Nelson working on the business end of the plane. PressOn.JPG (515822 bytes)
Wiring14.JPG (525642 bytes) For routing wiring out to the wings, Van cut a small machining hole below the aileron passthrough and it works great to open to 3/4" using a unibit and inserting a grommet for the wiring.  Left shows the undrilled right side and right shows the opened hole on the fuselage left. Wiring15.JPG (523290 bytes)

 

23 Feb 08        10 Hours        Total: 1837

SchottkyDiode.JPG (531928 bytes) Finished routing the EGT wires and heat shrunk them.  Added the Schottky diode between the main and standby busses.  It's kind of a clunky location, but it should operationally function properly there.  We taped the the empennage, slathered it with mold release and laid fiberglass over the empennage and screwed in place the empennage fairing.  It is sitting overnight and once cured it should fit tight. EmpFairing10.JPG (513119 bytes)

 

 

24 Feb 08        8 Hours        Total: 1843

The empennage fairing turned out nice and needed only a little more filling.  That is done and we'll remove it and begin the laborious sanding and finishing process.  Also figured out a way to mount the schottsky diode on the mechanical switch bracket, so we'll move it when we have time.

 

27 Feb 08        3 Hours        Total: 1846

Removed the schottky diode from the CB tray and moved it to the mechanical switches bracket.  We had to insulate it from the bracket so made a delrin block to mount the diode.

Removed the empennage fairing and it looks like it will fit nicely when finished.

Got the DB15 crimp connector and began wiring the intercom.

Schottky01.JPG (540238 bytes)

 

28 Feb 08        3 Hours        Total: 1849

Some work on smoothing the empennage fairing.  There's a lot of filling and sanding to be done, I'm looking for a filling primer to reduce the work load.

Cut the hole for the AF3400 OAT in the NACA scoop under the right wing.  We'll insert a connector for it at the wing root.

We're also figuring out the intercom connections.  Figuring out how to connect all the shields to ground.

 

29 Feb 08        7 Hours        Total: 1856

Frustrating day trying to get the avionics wiring to work.  We decided to bench test the intercom - headsets - SL30 connections but I apparently have the intercom wired wrong.  So, more hair pulling fun ahead.

Installed two clamps to secure the strobe wiring near the flap rods.

 

1 Mar 08       6 Hours        Total: 1862

Installed the elevators for the final time today.  We connected and heat shrink wrapped the wires for the trim tab servo, installed the servo, mounted the elevators and connected the trim wires to the terminal strip.

 

2 Mar 08        5 Hours        Total: 1867

Installed a bracket to steady the end of the ELT rubber duckie under the empennage fairing.  It was too floppy and needed a little support.

Started to install the rudder and heat shrinked the tail light and strobe wires and pulled them through the rudder bottom.  Got the rudder pinned on the plane and discovered that much of the great fiberglass work we did on the rudder bottom would have to be removed because it was causing the rudder to not reach the stops.  So, we started grinding off some of the glass and we'll finish tomorrow and start doing the repairs.

 

3 Mar 08        6 Hours        Total: 1873

Well, some forward (vs backward) progress today - although miniscule.  We figured out the correct intercom to radio connections and bench tested the intercom and radio and got the radio to transmit using the on aircraft antenna.  Also a bit of work on changing the rudder bottom.  Made the wiring connections for the schottky diode. Schottky02.JPG (524870 bytes) Schottky03.JPG (530640 bytes)

 

4 Mar 08        6 Hours        Total: 1879

Needed to change some pins in the intercom DB15 connector, but couldn't remove the pins.  Nelson figured out I was crimping the D sub pins too close to the barrel end and caused the removal tool to not work.  So, we had to buy a new connector at the local avionics shop and start over.  Ah well, it's fun to learn.

Nelson added a layer of fiberglass to the rudder bottom to cover the exposed metal after our modification.

MRX01.JPG (538243 bytes) Received the Zaon MRX and I'm very happy with the product.  First of all, it is packaged beatifully - sturdy box and lots of foam.  Second it comes with a very nice bound manual.  So many avionics manufacturers today send you their product in a sloppy brown box that likely got crushed in shipping and expect you to then go to their web site and download the owners manual and installation instructions.  Pitiful support.  Zaon is different.  Very refreshing.  The MRX performs exactly as expected.  Now I need to devise a means to mount the Zaon MRX traffic detector.  Gotta work on that.

 

5 Mar 08        6 Hours        Total: 1885

Removed all of the the old rudder bottom fiberglass that was so painstakingly applied and sanded and filled and sanded.  I hate having to spend time now removing the hours of work we put into the rudder bottom glass work, but it just makes sense to do it.  Now the rudder bottom will look like any other RV.

Added 4.7k ohm resistors to three of the four audio wires that will feed into the intercom.  SteinAir and XCom both confirmed that I can feed multiple audios into the single aux audio input on the intercom if I crimp a 4.7k ohm 1/2 watt resistor in each line before bringing them all together into the single aux input.  I'll have the AF3400, MRX PCAS, AOA and nav radio audios feeding the intercom.  Photos below show how the resistor was butt-spliced into the wire using the ends of the butt splices to help protect the resistor.  I doubled it back and put on heat shrink leaving the signal wire and shield ground exposed (heat shrink not yet shrunk).

Wiring16.JPG (502290 bytes) Wiring17.JPG (529153 bytes) Wiring18.JPG (536047 bytes)

 

6 Mar 08        8 Hours        Total: 1893

Nelson got both sides of the rudder bottom reglassed and tomorrow we'll be ready to start filling and sanding again. RudderTips14.JPG (523740 bytes)
I bought some terminals from evparts.com to use on the 8AWG wire but they were designed for use with ground-borne electric vehicles and are overbuilt for an airplane.  We cut them down in size (and weight) and they were still very adequate. Wiring19.JPG (521385 bytes) BruteCrimnper.JPG (509340 bytes)

Also bought a "Brute Crimper" from evparts and it works reasonably well for crimping terminals on #8 and larger wires.

 

 

The package from ACS arrived with the AeroSun 800 LED lights.  I decided the only way to decide whether or not they're suitable is to by a pair and try them.  They worked about as I expected.

I've done a lot of experimenting with various wattage LEDs and accompanying lenses to focus or diffuse the light.  I discovered that LEDs are not yet up to the job of lighting the runway sufficiently for use as a landing light.  They are to the point of development such that they can be used for taxi lights and recognition lights.  That is the best you can expect from the AeroSun 800 LED lights.  They will light an area out to about 100 feet well enough for landing.  Beyond that they are not adequate.  But, they would be fine as taxi lights and recognition lights.

 

My thoughts on the AeroSun 800 LED lights follow:

- They are suitable for taxi/recognition but not landing.

- They get almost as hot as other lights.  The heat sink case was hot to the touch after 10 minutes.

- They are heavy.  The metal heat sink creates the weight.

- The quality of workmanship is top notch.

- All necessary brackets and hardware are included.

- One light is master and the other is slave, so you must run four wires from wingtip to wingtip (in my case)

- There is a built-in wig wag function.  In my opinion the flash rate is too fast - but acceptable.

- They will last for the life of the airplane.

- They are priced too high.

 

I set up an unscientific test of the AeroSun 800 lights by putting two stools that are about wingtip height 15 feet apart and I placed them in from of the Pacer so I could compare it's light (which I consider just adequate) to the LEDs.

AS01.JPG (530497 bytes) AS02.JPG (517009 bytes) AS03.JPG (592520 bytes)
AS04.JPG (511465 bytes) AS05.JPG (506231 bytes) AS06.JPG (506840 bytes)
This is the Pacer landing and taxi light on.  They are standard PAR 36 bulbs.  The primary light illumination is several hundred feet down the runway with some residual light near the aircraft.  This is with the airplane in a three point attitude, so the light distribution is slightly different when the tail is up. Here are both the Pacer light and the LEDs on.  Notice that the primary illumination is only 30-40 feet away.  Of course, the angle of the lights could be adjusted to be father away, but the amount of illumination decreases significantly. Here are the LEDs alone.  They illuminate adequate for landing out to about 90-100 feet.  They would be excellent for taxi and recognition lights.  Notice the "matched pair" I got have different color temperatures.  The left one appears to be normal at about 6500K while the right one has a slight yellow tint.  They were obviously made from different batches of LEDs.

At this time, I can not recommend the AeroSun 800 LED lights for use as landing lights.  They would be very good for use as taxi/recognition lights.  I suspect the 4 LED version would be suitable only as recognition lights.

 

Got some more wiring done for the rear battery.  We're about ready to start wiring the circuit breaker tray.  The shielded 2 conductor wire arrived today for the intercom, so as soon as I understand whether or not to ground the shield at both ends, I'll get on with it.  SteinAir tells me to only ground one end of the radio to intercom shield and XCom tells me to ground both ends of the shield.  I'm confused.

AftBatt07.JPG (521585 bytes) AftBatt08.JPG (522712 bytes) AftBatt09.JPG (538387 bytes)
The shunt to contactor connection Wiring connections on shunt How aft battery sits in the aircraft.  I need to figure out how to best bring all the wires together and secure them.

 

7 Mar 08        10 Hours        Total: 1903

Got the rudder bottom sanded (2 hours) back to shape and added epoxy/microlite slurry to surface for final shaping.

Heat shrunk multiple wires and cut to their final length, terminal ends added, and labels.  The aft battery case went in for the last time.

 

8 Mar 08       10 Hours        Total: 1913

The rudder bottom is looking much better.  Got it sanded and we'll prime it tomorrow and start filling pinholes and sanding.

Got the headset plugs soldered and the attachment plates for the aileron boots made.

 

9 Mar 08        4 Hours        Total: 1917

Today was the Spruce Creek Wing and Wheels event where everyone brings their toys for display.  Aircraft ranged from P-51s to jets to Wacos to LSAs.  They had numerous classic and new cars on display.  We decided to enter the spot landing contest so that took until mid afternoon.  We tied for last place with 5 other guys.  Pretty impressive overall.

Nelson did a great job on repairing the rudder bottom.  It looks very nice and he almost has it finished.

We installed some of the Molex pins for the Whelen strobe power supply.

 

10 Mar 08        8 Hours        Total: 1925

Finished the rudder work and installed the rudder.  Attached rudder cables.  Attached the aileron boots (http://www.flightlineinteriors.com/products/construction/default.asp) to fuselage for safe keeping.  Finished tie wrapping wires in the tail.  Installed AMP connectors on strobe wires.  Tested the tail strobe and it works fine. Empennage01.JPG (512861 bytes) AileronBoots03.JPG (537971 bytes)

 

 

11 Mar 08        10 Hours        Total: 1935

Installed transponder antenna.  Made a mounting bracket for the Zaon MRX.

TxpndrAntenna01.JPG (530537 bytes) TxpndrAntenna02.JPG (517440 bytes) MRX02.JPG (511554 bytes)

 

12 Mar 08        10 Hours        Total: 1945

VS09.JPG (486715 bytes) MRX03.JPG (599173 bytes) MRX04.JPG (591518 bytes)
Finished sanding Vert Stab tip and intalled it.  Ran wires for flap position sensor to AF3400.  Made and installed RG400 coax cables for comm antenna and transponder antenna.  Completed the MRX mounting bracket.  Cut the MRX power and audio cords and added 4.7K Ohm resister to audio cord.  Ganged together all audio inputs going to the intercom aux input.  Next we need to install all AOA plastic lines and begin wiring the stick grips.  The stick grips have 17 wires and we'll be using 16 of them.  So, we're going to route them through a 25 pin D-Sub connector. MRX05.JPG (589826 bytes)

 

13 Mar 08        5 Hours        Total: 1950

Some additional fitting of Vert Stab Tip.  Ganged together all the audio inputs for the intercom.  They had to individually have a 4.7k Ohm Resistor and then all be brought into a single audio input for the intercom.  That was a pain.  Also had to gang together all the shields and tie them into a single ground pin on the intercom.  It'll be a miracle if it all works.  Also pinned most of the intercom input wires.

Took some time off today to show Keri how to ride a motorcycle.  Nelson explained the basics of cycle operation and after a few minutes she was riding like a pro.  I guess I'm going to have to buy a cycle to keep here for the kids/grandkids to enjoy. KD01.JPG (520381 bytes) KD02.JPG (493437 bytes)

 

14 Mar 08        10 Hours        Total: 1960

Nelson is remaking the ADC oil filter bracket.  We were concerned that the old one might not be strong enough when it is full of oil and the plane is loaded to 5 Gs.  So, he is remaking it with greater strength.  Pinned the intercom DB15 connector.  Removed the warning LEDs to replace them with conventional looking warning lights.  But, broke one of the lights as I was fitting it so had to reorder a new one.  Made a 6' x 8' x 6' paint booth with 1x2s and 2 mil plastic.  We've got several parts to paint or repaint and needed something to keep the overspray under control.

 

15 Mar 08        10 Hours        Total: 1970

More work on the ADC oil filter bracket.  It's almost finished and final mounting is tomorrow.  We had about 9 pieces to paint or repaint and after sanding and figuring out the spray gun and mixing the paint, we got them sprayed.  We'll see how well it went tomorrow.  We discovered that it is probably optimum to paint 4 items at a time.  Any more than that and there is too little room in a small paint booth and it gets too foggy to see well enough to do a good job.

Wired the AOA push-to-test and dimmer buttons.  Installed the mechanical switches as a test fit.  Looks like only minor adjustment is needed.

 

16 Mar 08        12 Hours        Total: 1982

If you have ever installed a Click-Bond nutplate on your airplane, I encourage you to immediately go to your airplane, remove it, throw it in the trash and replace it with something else - anything else.  The Click-Bond nutplates do not function as advertised.  The adhesive sticks only when you don't want it to - when you're trying to remove it after the nutplate has fallen off.  I've had numerous Click-Bond nutplates fall off and I've replaced them with real nutplates.  Perhaps I did something wrong when attaching all of the nutplates - but I doubt it.  I can understand I might have done a poor job with some of them, but not all of them that have fallen off.  Tomorrow all of the Click-Bond nutplates are coming out of my plane and I'll replace them with something that works.  It will take several hours to replace them, but it will be worth it.  Besides not adhering properly, I have two major concerns with the Click-Bond nutplates.  First is that they may become unstuck and become FOD inside the airplane to get jammed in whatever it can find.  The second concern is that when removing something held on by one of those nutplates that is in a hidden (unreachable location - which is a common reason for using a nutplate) spot, the nutplate may become unstuck and then it simply spins thus making removal of the piece difficult or impossible.  My opinion is that Click-Bond nutplates are potentially hazardous and, as a minimum, sure to create significant aggravation at some time in the future.

Today, we got the ADC oil filter bracket completed and the chip detector and oil bypass wired.  Also, got all of the hoses properly routed and the Thermo-Sleeve secured.  Repainted some of the pieces from yesterday that had runs.  Finished the aft fuselage tie wraps and reinstalled the aft floor panels and flap weldment.  Also installed the aft baggage floor, but it will have to be removed in order to replace the Click-Bond nutplates.  Reinstalled the instrument panel outer frame and installed the EFIS Lite controller, one caution light, the intercom, G meter and mag compass.

AftBatt12.JPG (521709 bytes)

The completed ADC oil filter bracket and connections

ADC20.JPG (518529 bytes)
Except for minor changes, the aft wiring is complete

 

17 Mar 08        12 Hours        Total: 1994

Removed all of the Click Bond nutplates and replaced them with normal plates.

Panel24.JPG (538675 bytes) Left shows what the panel will look like should I need to pull the EFIS 1 to work behind the panel.  I am building a service loop in the wiring to permit the removal of the EFIS 1 which will then provide a large hole in the panel to reach through and disconnect other instruments for removal.

To right is everything installed on the main panel.

Panel26.JPG (498364 bytes)
Panel25.JPG (534898 bytes) Installed the subpanel and panel and mounted everything in them.  I'm going to wire everything, operate it using the aircraft wiring, and then remove it all and repaint the panel and send the switch panels to CT for making the switch overlays.

Left shows the view behind the panel.  Nice and open.  Enough open space that I've decided to not install an avionics fan.

 

18 Mar 08        10 Hours        Total: 2004

Finished the aft baggage floor and it is installed.  I snapped off a screw in one of the nutplates as we installed it last night so it had to come back out today for replacement of the nutplate.  Made good progress on the wiring task.  Got started on making a doubler with DB25 connectors to pass through a bulkhead below the seats.  We're going to run all of the wires from the stick to a DB25 connector and then to the functional connections - flaps, trim, etc.

 

19 Mar 08        6 Hours        Total: 2010

Made a doubler with cutouts for the DB25 connectors for the sticks.  Completed more wiring.  The wiring is slowly coming together. Wiring20.JPG (507492 bytes)

 

20 Mar 08        6 Hours        Total: 2016

Nelson finished the DB25 doubler and connector mount and mounted it.  Also made a bracket for attaching the stick wire bundles for strain relief.  The stick wires connection is going to work great.  More wiring completed.  Connected the aft battery and did an ops check of the contactor and avionics bus.

 

24 Mar 08        5 Hours        Total: 2021

Removed the sticks and discovered that the previous owner had used a 1/4" diameter rod end bearing in the F-839 instead of 3/16" M3414M bearing.  That would be fine except that the strength of the 1/4" bearing may not be adequate because the width of the bearing is less than that of the 3/16" bearing.  So, I ordered a new WD-412BPC for the RCP stick along with the correct bearings.  We'll install the sticks for the last time once those things arrive.

Received the new ALT warning light and got it installed and wired.  Wired the alternator field switch.

StickGrips01.JPG (509124 bytes) StickGrips02.JPG (537961 bytes) StickGrips03.JPG (534018 bytes)

We got the stick grips pinned and wired today.  The stick grip wire bundle is pinned to a DB25 connector and it will feed all of the stick grip actuated controls.  Right photo shows where wire bundles will be secured with adel clamps below the control column.

I emailed Rob at Advanced Flight to ask about the master caution light wiring and got an immediate answer from him.  I have the light wired wrong and need to correct it.  The wire from the AF3400 to the light is actually a ground.  I need to provide power from the bus for the light and it will pull to ground via the AF3400.

 

25 Mar 08        8 Hours        Total: 2029

More wiring.  I don't think it will ever stop.

Pinned out some of the DB25 female connector.  Changed the wires to the warning lights.  I had them set up to get power from the AF3400 and alternator when, in fact, the AF3400 and alternator pull to ground so I need to provide power to the lights and connect the ground to the AF3400 and alternator.  Done.

 

26 Mar 08        8 Hours        Total: 2037

We got a lot done today.  Made all the connections for the static lines.  The static needed 5 "breaks" in the line - an alternate static source petcock and static to the EFIS One, EFIS Lite, AOA and Satety Trim airspeed switch.  The pitot will need all the same except the petcock. AltStaticAir.JPG (530239 bytes)

 

Got more wiring done.  Finished wiring the warning lights and tested them.  Wired the CO Guardian and most of the wiring for the Safety Trim.  We tested the aileron and elevator trim servos for correct movement by connecting the stick to the Safety Trim and powering up the Safety Trim.  The trim servo wires are pinned into a DB9 connector and we'll mount it below the floor near the aileron servo.

 

27 Mar 08        6 Hours        Total: 2043

Nelson got the pitot tubing completed.  We just have a few more tubing adapters to add.  He also made a bracket for the DB9 connectors that join the Safety Trim to the servos.  Got a little more wiring done - connected the EFIS Lite to a W-31 CB and tested it.  Connected the AF3400 ground.

 

30 Mar 08        8 Hours        Total: 2051

Nelson completed the bracket for mounting the trim DB9 connector and then made a bracket for the front baggage compartment LED lights.  He added a switch to the bracket, as well.  He bought a Rat Shack relay to use with the oil low level sensor.  The sensor maker (Aircraft Extras) makes the sensor "fail-safe" by using a normally closed (NC) switch.  The problem is I'm connecting it to my engine monitor and the monitor requires a NO switch.  So, we had to incorporate a relay to properly send the signal to the engine monitor.  I got that mounted and connected.  Did a test run of the AF3400 to check for the master caution light and for the oil low level indication.  Neither displayed.  So, I've done something wrong.  Will work on it tomorrow.

 

31 Mar 08        8 Hours        Total: 2059

Nothing wrong with the caution light display - the AF 3400 is set to display the caution light when the engine is running.  I will reconfigure it to display when the RPM is zero so I can have a preflight check of the bulbs.

FrontBaggLED.JPG (539203 bytes)

Nelson finished the bracket for the front baggage LED light including the on-off switch.  It should be adequate for digging around in the baggage and serves dually to light the battery compartment.

I made wires to finally connect all of the electrical system together - and it all worked!  The basic electrical wiring is complete and I connected the power supply and went through all of the switch configurations.  It all worked as expected.

 

Panel27.JPG (510195 bytes)

 

1 Apr 08        10 Hours        Total: 2069

Will the wiring ever stop?

Lots of wiring today.  Traced a lot of loose ends and got them terminated and connected.  Figuring out the correct trim wiring was challenging because I have the Safety Trim connected to the servos while the AF3400 needs input from the servos and flap position.  I finally figured out that the Safety Trim powers the servo motor while the AF3400 powers the indicator sensor.  Both the servo motor and the position sensor need power.  Once that was realized we made good progress making the connections.  Finished wiring the FCP LED flood lights and they are operating good.  Got the SL30 connected and ops checked through the aircraft wiring.

In fact, I connected everything through the standby battery circuitry and ops checked it.  Everything worked as planned.  Then I connected the power to the alternator B lead and turned everything on as if the main battery were installed.  Everything powered up as expected.

 

2 Apr 08        7 Hours        Total: 2076

Van's shipment arrived with the replacement rod end bearings and rear stick weldment.  We got those attached and the sticks went in for the last time today.  Now we have to connect the stick wiring and ops check it all.

Using power through the B lead ( as if the engine were running) I turned on all systems and ops checked it all.  Only a few glitches - all of which are probably my fault.  The EFIS 1 is not getting the magnetometer signal, but the signal is normal when connected to the EFIS Lite, so I obviously have it wired wrong.

I downloaded the latest AF3400 software and installed it.  I really like how the AF3400 operates except for one thing - and it is enough to cause me to remove the unit and replace it with a Dynon or something else.  Every time you start the AF3400, you have to select "I agree" to their legal disclaimer.  I HATE THAT!  Kind of like pushing one for spanish or two for English.  Otherwise I like their product.

 

5 Apr 08        8 Hours        Total: 2084

More wiring.  Ran several ground and power wires.  Finished pinning and connecting the stick wiring.

 

6 Apr 08        6 Hours        Total: 2090

Puzzling over why the intercom doesn't work.  It will transmit, but cannot receive from the SL30.  No intercom capability between the FCP and RCP.

 

7 Apr 08

Sun n Fun started today so we went to attend the opening day.

 

8 Apr 08        6 Hours        Total: 2096

Note to self: when you're working on the headset plugs and you have them hanging from the wires so you can work on them, do not let them touch one another when you're testing them.  I was getting intermittent and confusing operation of the intercom and radio.  Even though we thought the plugs were isolated from one another, apparently they weren't.  The problems disappeared when we taped them to insure no contact.

The radio transmitted and received okay.  The intercom is working properly, also.  All audio inputs to the intercom are functioning.  Had to adjust the AOA audio volume in the AOA CPU - a TINY little screw.

 

9 Apr 08        6 Hours        Total: 2102

We had to rewire some of the stick wires.  I had mispinned the RCP PTT, but it is working right now.  On the RCP stick, I'll have only trim, flaps, and PTT functions.  The FCP will have those plus the starter button, autopilot disconnect, and smoke (should I install a smoke pump in the future).

StickDB25Connector.JPG (539953 bytes) Here's how we wired up the stick grip connector.  We used a DB25 to pass through the bulkhead under the floor.

 

11 Apr 08        6 Hours        Total: 2108

The flaps were not extending.  The motor would try to start and then immediately stop.  A little study discovered that if one stick is commanding up flaps, the other stick cannot lower them.  The stick not being used must have the flap switch in the center (neutral) position so as to not affect the other stick.  Optionally, one can install a switch that gives command to one stick or the other.  I'm installing that switch, but the only function it will switch is the flap control.  No other stick functions will be affected.

We've decided to add an avionics ground bus behind the panel, then a single wire will go forward to the main aircraft grounding bus.  I have too many little wires routed to the main ground bus and an avionics bus will help clean up the wiring mess.

Bought the Whelen combination strobe light and LED position light.  I've been bugging them for years to make a 14v LED position light and they finally came through.  Now I have to get the rest of the lights and figure out how to install all of them. WhelenLEDposit01.JPG (581183 bytes)

 

12 Apr 08        6 Hours        Total: 2114

Nelson removed the engine oil separator to install the hose from the separator to the collection cup.  I've been pestering the Andair folks for two years to give me one of the (hard to find) nipples for their separator.  They finally broke down this year and gave me one at SnF.  He made two brackets to fit outboard of the flap rods for tie wrapping wires to keep them clear of the flap rod.

We rewired the starter contactor wires to put the positive through a CB and then to the stick and back to the contactor.  Normally a contactor is pulled to ground, but Nelson had a good point that if it were to short, the starter could be engaged inflight.  Whereas, if the switch were on the positive side, the CB would pop in the event of a shorted wire to the starter contactor.

We found out the AF3400 inputs can be normally open or normally closed, so we need to go back and remove the relay used in the oil low level circuit. 

Today I bought the Precise Flight rectangular HID landing lights (originally made for the Lancair) and Whelen LED taxi/recognition lights.

WhelenLEDLts01.JPG (521136 bytes)

 

14 Apr 08        6 Hours        Total: 2120

Reinstalled the Andair oil separator drain lines.  They are now routed to drain onto the exhaust pipes.  Wired the stick selector switch so as to permit selection of which stick has control of the flaps.  Without the switch, one stick could inadvertently override the other. StickControlSw.JPG (510676 bytes)

 

15 Apr 08        4 Hours        Total: 2124

Fitted the left aft floor panel with grommets for the RCP wire bundle and the stick selector switch.  Nelson made a bracket that serves dual duty to add strength to the floor panel and provide a mounting location for tie wrapping wiring.  Pinned the stick selector and ops checked it.  Did some of the wiring for the starter contactor.

 

16 Apr 08        6 Hours        Total: 2130

Pinned and stowed the smoke wire for possible later use.  Nelson rerouted the flap wiring and we ops checked the stick switches.  Removed all the avionics grounds from the forward aircraft ground and put them all on their own avionics ground and ops checked good.

Wiring21.JPG (508989 bytes) Wiring22.JPG (508965 bytes) Wiring23.JPG (533490 bytes)
Wiring26.JPG (531372 bytes) Above shows the wiring bundles for the Show Planes flap controller, AOA flap position sensor, Safety Trim, aileron servo and stick grip.

Left is the avionics ground bus which is wired to the aircraft ground forward.

 

17 Apr 08        4 Hours        Total: 2134

Nelson found some zener diodes that we can use in the taxi/recognition lights wiring.  I'm using Whelen LED lights for taxi and recognition.  They are highly focused with a 10 degree beam.  That's a bit too tight for me, but it does concentrate the light well which is what is required with LEDs.  I'm connecting the light through Eric Jones' wig wag module and in order to do that and use a single DPDT switch, we needed diodes to keep power from flowing one direction in the wires.

We cut and routed wires through the fuselage for the Whelen LED position lights (incredibly low 0.25 Amps per light) and for the LED taxi lights (0.9 Amps).  They're wound up outside the fuselage for later insertion in the wing.

 

20 Apr 08        8 Hours        Total: 2142

Made good progress on wiring today.  Nelson rigged up a relay that can replace the diodes planned in the last entry.  The diodes worked okay, but they are zener diodes and are primarily for voltage reduction.  So, we have a design now with a relay that switches between steady on and flash for the LED taxi lights.

We put oil in the engine and watched for the AF3400 to indicate when the oil low level sensor floated high enough to turn off.  The oil low level sensor will turn on the indication on the AF3400 at about 3.25 quarts.

We got the wiring for the position lights, pitot heat, taxi/recognition lights, strobes and AOA line all routed through the fuselage.  We need to run the OAT wires also.

I'm having a problem getting the heading indication from the magnetometer to the EFIS one.  The EFIS Lite is working fine on either magnetometer, but the EFIS One will not get a signal from either mag.  I've send a note to BMA asking for help.

 

21 Apr 08        3 Hours        Total: 2145

Nelson modified the wiring plan for the taxi/recognition lights relay and ops checked it.  They work great.

We discovered the problem with the BMA EFIS One not getting heading info.  It was, as usual, operator or installation error.  I had mispinned two of the wires from the magnetometer.  Once those were corrected, it worked great.

 

26 Apr 08        8 Hours        Total: 2153

Fortunately, Nelson has great troubleshooting skills.  He led us to several problem-solving solutions.  He traced down the reason for the autopilot disconnect not working - you guessed it - I had mispinned the disconnect button.  Once it was correctly repinned, the autopilot disconnect works as advertised.  The roll direction of the AP is backward, but that is easily correct through software.  We'll get that done tomorrow.  Also, he rerouted the magnetometer cables to gain extra length so as to have a larger loop behind the panel for removing instruments.  We now have a problem with the SL30 not transmitting.  It receives clearly and the intercom works with the headset plugs and headsets.  So, we have a problem of some type between the intercom and the radio.  When we try to transmit, we get carrier but no modulation.  So, that is tomorrow's task.  As soon as we get all the bugs wrung out, we'll get started on the fuselage top skin.  It sure has been nice having easy access to the back of the panel.

Not too long before Nelson begins his summer time wanderings and I'll be stumbling along in the dark again with the building process.  It sure is nice to have two sets of eyes and two brains to solve problems.  The result is always better.

 

27 Apr 08        6 Hours        Total: 2159

A frustrating day trying to figure out the electronics.  After ringing out every wire in the aircraft from the stick to the headset plugs to the intercom to the radio, we've determined the intercom is likely at fault - or maybe the SL30.  I assumed the problem was with my wiring, but every wire checks out and has been checked in the correct pin location about 10 times.

The headsets work good between each other through the intecom.  The PTT in the FCP is good - the RCP is intermittent.  Radio receives clearly, but transmissions are 1x1 - weak and garbled.  We removed the intercom from the equation by jump wiring the intercom DB15 connector to permit the audio and PTT signal from the headset plugs to go directly to the SL30.  Same results.  We rang out every wire in the bundle and they all checked out good.  So, I'