VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #41  
Old 12-03-2017, 10:50 PM
jcarne's Avatar
jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 327
Default

Man that looks awesome! great work!
__________________
Jereme Carne
PPL
RV-7A Emp. coming along
Working on Wings
Exempt but gladly paying!
Reply With Quote
  #42  
Old 12-04-2017, 08:44 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 65
Default

Quote:
Originally Posted by 6 Gun View Post
Hey you did some beautiful work and it looks great.My question is in a process like the bonding of the fairing I would think it is no stronger than the weakest link did you test the spot putty it looked like a full coat on the inside.
Thanks Bob
The one pic I posted that looked like I sanded down the putty was actually an in progress pic. Not finished. When using spot filler it is just that, only in small spots or in my case, pin holes. After using it a few times I found that it sands so easily that it is actually easier to apply a lot of it in a very thin layer then sand all of it off to catch any pinholes that I couldn't see the first time. 99.9% of it gets sanded off, cleaned with acetone then primed. It looks like this when ready for primer.


Jamie
__________________
Vaf dues paid 10/17
RV-7 G3X Touch GTN 750
Superior IO400 MT 3 Blade
Reply With Quote
  #43  
Old 12-04-2017, 08:50 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 65
Default

Quote:
Originally Posted by jcarne View Post
Man that looks awesome! great work!
Thanks for following Jereme. Sometimes it feels like I'm posting this stuff to myself.
__________________
Vaf dues paid 10/17
RV-7 G3X Touch GTN 750
Superior IO400 MT 3 Blade

Last edited by J_Turner : 12-04-2017 at 09:36 PM. Reason: spelling
Reply With Quote
  #44  
Old 12-04-2017, 09:22 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 65
Default



Today I made a support for the plane to sit on while getting the wheel pants and gear leg fairings aligned.
Used a chair and some spacers at the rear and an engine hoist to support the plane from the engine mount to take measurements for the support. Made saw horse style support 30.5" tall. This places the wheels about 1/8" above the ground.
Then placed a centerline to take measurements from. More pics tomorrow. On the right side I had to enlarge the opening for the wheel to allow the wheel pant to turn enough to be somewhat in line with the centerline of the plane. Also tied the rear of the plane down to my mini tug with ratcheting straps because the engine hoist "leaks"down a little in a 10 minute span so, it's not up to the task of supporting the front all by itself.
Wasted a lot of time rereading the instructions trying to get the best alignment of the wheel pant. Not much success today but tomorrow I might have this thing right......
__________________
Vaf dues paid 10/17
RV-7 G3X Touch GTN 750
Superior IO400 MT 3 Blade

Last edited by J_Turner : 12-04-2017 at 09:27 PM. Reason: pic issues
Reply With Quote
  #45  
Old 12-05-2017, 11:22 PM
RicoB RicoB is offline
 
Join Date: Mar 2017
Location: Glendale, CA
Posts: 88
Default

Yes would be great to see more about this step.. I am very close todo that! thanks..
__________________
Rico Burgos
RV9a - Building with a partner (avionics 99% done, Baffling in progress.) Planning to have it flying by the end 2017
Based at KWHP (CA)

C-150 Based at KMOD (CA)
Reply With Quote
  #46  
Old 12-06-2017, 01:17 PM
Joewebb Joewebb is offline
 
Join Date: May 2014
Location: Sydney
Posts: 21
Default

Looking good JT..she's almost flying...
Have you done your gear leg stiffeners yet?
Joe
Reply With Quote
  #47  
Old 12-06-2017, 03:14 PM
Raymo's Avatar
Raymo Raymo is offline
 
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 1,380
Default

Quote:
Originally Posted by Joewebb View Post
Looking good JT..she's almost flying...
Have you done your gear leg stiffeners yet?
Joe
The leg stiffeners are optional. I found they are not needed on my -7A.

YMMV.
__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ Catto 3 blade NLE, AFP FM-150 FI, 1 PMag, Vetterman Trombone Exh, SkyTech starter,
PlanePower Alt, FlightLines Interior, James cowl & plenum
All lines by TSFlightLines
NSDQ

"The object of the game, gentlemen, is not to cheat death: the object is not to let him play."
Patrick Poteen, Sgt. U.S. Army
Reply With Quote
  #48  
Old 12-06-2017, 07:34 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 65
Default

Quote:
Originally Posted by RicoB View Post
Yes would be great to see more about this step.. I am very close todo that! thanks..
I'll do my best to document the fitment of all of the gear leg fiberglass.
__________________
Vaf dues paid 10/17
RV-7 G3X Touch GTN 750
Superior IO400 MT 3 Blade
Reply With Quote
  #49  
Old 12-06-2017, 07:35 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 65
Default

Quote:
Originally Posted by RicoB View Post
Yes would be great to see more about this step.. I am very close todo that! thanks..
Quote:
Originally Posted by Joewebb View Post
Looking good JT..she's almost flying...
Have you done your gear leg stiffeners yet?
Joe
Not yet. Still on the fence about doing them before first flight.
__________________
Vaf dues paid 10/17
RV-7 G3X Touch GTN 750
Superior IO400 MT 3 Blade
Reply With Quote
  #50  
Old 12-06-2017, 07:55 PM
J_Turner J_Turner is offline
 
Join Date: May 2011
Location: Richmond VA
Posts: 65
Default

Didn't get much done today but I think I have my head wrapped around the process. I didn't read the instructions all of the way through for the gear leg fairing and this caused a little extra work on my part to get a straight gear leg fairing. I cut out the template and just proceeded to cut out the whole thing all at once only to find out later I wasn't supposed to trim the trailing edge until after the hinge was riveted in place. This was a couple of days ago. Last night while reading every single word in the plans and drawings and getting the whole understanding of it I figured I could tape the gear leg fairing's trailing edge to something straight and install the hinge. Once I had everything taped down to a piece of square stock of alumnium I clamped the hinge in place on each end about a 1-16th" further inward to ensure that the trailing edge would come together perfectly. The plans say that you can not cleko both sides at the same time. I wanted to see how straight this thing was going to be BEFORE riveting so I staggered one side of rivets about 1/4" to one side of my marks that I made on the hinge. The result was that I could see how straight it was before setting the first rivet.


Drilled, deburred and countersinked (with the hinge in place) everything. Then I reassembled it with with clekos and inserted the hinge pin. The result was not straight. The slightest amount of slop between the clekos and the parts caused a slight mis alignment resulting in an edge that was not perfectly straight. I was able to bend or manipulate the edge straightness by bending it by hand. I unclekoed everything and went back to the straight edge. While holding the trailing edge flush to the straightedge I then clekoed it back together. Now we're talking! Straight as a line. Next I removed the hinge pin and riveted both sides removing one cleko and setting one rivet at a time. Reinstalled the hinge pin and success! In the end I call it good enough. It was almost perfectly straight with a very minor tweak at the top that will be covered up with the intersection fairing. Installed it on the plane and setup a line that was parallel and straight with the plane. Using a square at the front of the fairing I decided the string would need to be 24.5" from the centerline of the plane and 21" vertical. Set up a couple of weighted boxes and taped a string around the fairing back to the boxes. Then used a small ruler and twisted the fairing to center it. Clamped it into place and made sharpie lines on the gear leg and fairing to make it easier to line up next time.




Hopefully tomorrow I'll be able to add a few reinforcement strips of fiberglass cloth to the inside of where the clamps hold the fairing to the gear legs and mix up some flox to put between the wheel pant mounting points.

The right main wheel fairing was a bit of a challenge for me as well. It was difficult for me to understand how this was to be aligned with the airflow of the plane because of the amount of positive camber the wheel has when it was not on the ground. When I reread the instructions is says that the wheel pant is to be aligned to the wheel as far as camber is concerned. When I did this it looks like the wheel pant is laying over on its side (rolling over). After thinking about it, it makes sense, when on the ground with everything attached on the plane i.e. fully loaded the wheels should be mostly vertical and when unloaded they will camber out quite a bit. I used my centerline to roughly get the wheel pant aligned with the centerline of the plane using the center of the rear pant and the most forward edge of the front wheel pant. I can't remember but I think the dimension was about 3?.125"? With this in mind I went ahead and raised the rear of the wheel pant to about 8.75" and drilled it to the U-808 mounting bracket with a #30 bit. I'll play around with it tomorrow to see if it is correct.
__________________
Vaf dues paid 10/17
RV-7 G3X Touch GTN 750
Superior IO400 MT 3 Blade

Last edited by J_Turner : 12-06-2017 at 11:23 PM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 04:46 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.