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  #61  
Old 12-13-2017, 06:38 AM
RV7ForMe RV7ForMe is offline
 
Join Date: Jul 2015
Location: Europe
Posts: 277
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Years ahed of me but very inspiring to look at. Your work looks great. Thanks for posting!
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  #62  
Old 12-13-2017, 07:05 AM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 85
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Quote:
Originally Posted by fixnflyguy View Post
Great photos of progress heading for the home stretch ! Your attention to detail will be awarded when you see it all painted-up and posing for pictures. I have one suggestion that will probably be the same on your aircraft as it was on my -4 that I encountered after paint and flying you can avoid at the stage you are now. Others may have comments to validate. The Whitman gear to me is an engineering marvel that does many things well, but it moves around way more than can be imagined when the plane is sitting static during the build. I had my gear fairings trimmed exactly like yours at the upper end for a nice level close fit, but in service, the gear will flex AFT an unimaginable amount which lets the T/E of the fairing/hinge pin hit the fuselage skin, which in turn dents it and pushes the fairing down into the wheel pant..in other words, its "buzz kill" for OCD builder. I trimmed my fairings downward at an angle from the upper mounting tabs so there is only about 3/8" into the upper cuff fairings..make sense? This allows plenty of gear movement without interference when the gear flexes AFT. Keep up the great work!
Never even thought about that. I will trim accordingly. Thanks for the tip! Your advice is exactly why I started posting in this forum.
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  #63  
Old 12-13-2017, 05:44 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 85
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I am a little bored of messing with fiberglass so I started working on the wings today. First I cleaned the floor around my work area, then drilled the 3/4" holes in the wing ribs for snap bushings. Then i ran some wires and the pitot and AOA lines.
Need to order some more wire for the right wing. Not much progress today but the list is getting smaller.

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Last edited by J_Turner : 12-14-2017 at 07:33 PM.
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  #64  
Old 12-14-2017, 07:28 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 85
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Today I rerouted the VOR antenna coax in the left wing so that it is somewhat separated from the power wires and ran the AOA tube with the power wires. I had a piece of 3 conductor 20AWG that was just a bit too short (top cable in above pic) so I pulled it back and used a 4' piece that was in my scrap box and extended it placing the splice in the outermost bay. Starting from the tip and working inwards I put connectors on the landing/taxi lights, strobe and NAV light and the pitot.





The pulsar NSP lights have about 16" of wire coming out of them and I needed to use that length to make wingtip removal easy. The wires were unshielded and I thought since everything else in the plane is shielded I might as well go ahead and add some shielding from the connector to the light. All of my wiring has a ground wire back to the main firewall ground block, the shield is also tied to this main ground block. I'm not using any shield as a ground. Went to the production dept. on the other side of the warehouse where I'm building and grabbed some shield, heat shrink, etc. and came up with this. I know it's overkill but I want a quiet electrical system.



Next was getting the root ends terminated and installing the terminals. I cut the wires all to the same length and crimped on the terminals. Oh yeah, those solder on with a heat gun thingies (for getting the shields thru a connector) are great but if you don't make sure the solder is completely melted they might fail in service. My brother stopped by at the end of the day and looked over my work. I asked him about the solder joints and he said they weren't good enough. He said heat them up till you think they are hot enough and then add more heat until you can see the solder melt. He grabbed the heat gun, turned it up to high and demonstrated. Yep, he was right. Now I need to go back and reheat some other ones at my splice joint.

Before:

And after, done correctly:
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Last edited by J_Turner : 12-14-2017 at 10:45 PM.
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  #65  
Old 12-15-2017, 08:54 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 85
Default No Smoke!

Today was quite the treat because I got to check out the tail light, wingtip lights and the landing light. When I got to the shop today I populated the left wing connector and checked the pinout many times. I found a few mistakes and corrected them.

Rolled the wing around to the plane and connected the wire and when I hit the switches..... No Smoke! Alll of the lights came on when they were supposed to.



Those were my best attempt to get a pic of no strobe vs strobe on. Then I pulled out a headset and plugged them in and retested everything. Complete silence in the headset! No noise whatsoever. No strobe noise, no light noise, just dead silence. I guess it paid off to not ground anything locally and run all of the grounds and shields back to the firewall to a ground block separately. My brothers RV-10 has just a faint noise from the strobes and it is a little annoying.
Feeling like I accomplished something good today I decided to go and start the exciting task of drilling, deburring, and dimpling the left skin. I got the drilling and deburred one side and left remembering what it was like on the RV-10 we built years ago. It's amazing how much work goes into the line "final drill, deburr, dimple and prime of needed" in the -10 instructions. Oh well, back at it monday....

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  #66  
Old 12-16-2017, 11:00 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 85
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Spent some time today after work to get all of the left lower skin deburred on the inside and dimpled.


Also deburred and dimpled the inside of the ribs.
Had to reposition the skin a few times to find the sweet spot for the correct alignment. Dimples don't always line up "exactly".


Found the sweet spot and set a few rivets on the inner most skin to rib assembly to try and "true" everything up.
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Last edited by J_Turner : 12-16-2017 at 11:04 PM.
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  #67  
Old 12-19-2017, 06:31 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 85
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Been slow on the build the last couple of days but, I did make some progress today. If anyone remembers a few days ago I got the lights in the left wing wired up and tested. Everything was quiet as a mouse in the headset. The problem with that test was that I didn't have the antennas connected. When cleaning my bench for prepping the wing skin, I decided to go ahead and connect them to the plane just to get them out of the way. At the end of the day last Saturday, I wanted to demonstrate how nice and quiet it was to my brother. Powered everything on and had all kind of radio noise when I turned on any light. The lights were breaking squelch on both radios (GTN 750 and GTR 20). After messing with it for a few minutes I just said the heck with it and went home to think about the problem. I read about the auto squelch function and wondered if that was the problem since There have been updates to address this function. My G3X's have never been updated since I got them in early '15. Today I downloaded the latest software from the Garmin site and proceeded to do the update. Problem 1) The GSU 73 wouldn't update and problem 2) the GTR 20 wouldn't update. Called Garmin's tech support and got quickly transferred to a guy that helped me get the GSU 73 to update. Rebooted in config mode and it updated very quickly. I think I wasn't giving it enough time to do its thing. Problem 2 took longer, I called back and we couldn't quite figure out what was happening, I said I'll just wait and call back after giving it some more time. More time was not what it needed. It seems I may have a CAN bus problem. After calling back, he told me to turn everything off except the PFD and the GTR 20. It worked. I have some troubleshooting to do. The good thing is that my GTR 20 radio is dead quiet now with all of the lights on just need to figure out why I'm getting some error on the CAN bus.
I did manage to get the aileron servo bolted in and set a few more rivets in the left wing. Man its hard to reach some of the rivets at the aft side of the wing.


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Last edited by J_Turner : 12-19-2017 at 06:41 PM.
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  #68  
Old 12-20-2017, 07:19 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
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Left wing skin is now riveted on.

Ran all of the wires for the right wing.



Tomorrow I'll try to find a way to secure the wires on the right side of the servo. I don't want anything that could flop around or get caught up with the servo or control linkage.
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  #69  
Old 12-30-2017, 07:54 AM
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jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
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Your build is looking great! Nice work indeed. Thanks for posting these for us people that aren't quite there yet.
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  #70  
Old 01-02-2018, 05:51 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
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Quote:
Originally Posted by jcarne View Post
Your build is looking great! Nice work indeed. Thanks for posting these for us people that aren't quite there yet.
Thanks and you're welcome. I just got back at it today after all of the holidays and will be updating more regularly.
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