VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #121  
Old 02-25-2018, 06:54 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 2,880
Default F7108A Center Forward Fuselage Rib, DWG 24

There's a "Gotcha" on the cabin substructure. Maybe common to both Slider and tipper but for sure on the slider. I assume it is because the Firewall is common to both and the substructure is different.

Here's how it goes.
Manual says, cleko and drill F7109 Plate to F7108B Angle and F7108A Center Forward Fuselage Rib. No way to follow the manual here. It says to cleko the rib to the Firewall, but there are no holes in either. It also says to drill the F7108B Angle to F7108A Center Forward Fuse Rib, but the angle has to fit perfectly to the firewall and F601L Stiffener or the skin holes won't match the rib. The best solution is to assemble all the parts with the skin first. This pulls everything into the exact location.
First clamp the center rib forward flange to the left forward flange and duplicate the holes. Now the rib has holes for the Firewall. Cleko the ribs and subpanels but leave F7108B Angle out for now. Cleko the skin.

There's a trick to getting the skin in place. Start in the center. Work out in all directions with 100% clekos. When you get to the curve by the side skin, start at the forward #30 holes and work aft one hole at a time with 100% clekos. Leave it overnight. Back to the substructure...

Draw a 1/4" edge distance line on F7108B Angle. The Aft two holes are 3/16" so draw a line 3/8" edge distance line on the aft end for those two holes. Slide the F7108B Angle in place. Position F7108B Angle on F7108A Rib and mark one forward and one aft hole. Remove it and look at the edge distances. Adjust as needed so the holes fall within edge distance. I had to make an .063" shim between F7108B Angle and F601L Stiffener then file the slot in F7105A Rib. Once all the holes are good, clamp the angle to the rib and mark the hole through the F7108B Angle on F601L Stiffener. Disassemble. Match drill the angle and remove. Drill the hole in F601L Stiffener. Reassemble. Now all the parts are in position and the firewall can be match drilled through the rib or marked and drilled later with a super sharp drill bit. Don't mess with the hole in the top corner of the angle. Since this matches the other rib, just cleko the other rib to the forward side of the firewall, mark, remove and drill it from the front.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/01/2017. Plus a little extra.
RV-7A #73391, N511RV reserved (1,800+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.

Last edited by wirejock : 02-26-2018 at 01:47 PM.
Reply With Quote
  #122  
Old 03-03-2018, 02:48 PM
amaris amaris is offline
 
Join Date: Feb 2015
Location: Santa Ynez, CA
Posts: 127
Default Flap Hinge

I failed to measure the exact length for the flap hinge and went by the plans. 56" was too short and doesn't allow enough edge distance. Doh.
__________________
Allen Maris - 2018 Dues paid
Santa Ynez, CA
Reply With Quote
  #123  
Old 03-16-2018, 07:17 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 4,233
Default Setting Aileron Position using Tooling Holes

I set my aileron using the tooling holes in the rib aft of spar. The ailerons were off. I went through resetting them based on in flight and matching to the flaps. Vans tech whacked my pee-pee and said in no uncertain terms to use the fixture and set to the tooling holes, not to other surfaces. So I went back to recheck and this is what I found.

The tooling holes don't all align. I would suggest you use a string or a laser level when doing this procedure and not rely on just two holes and a straight edge. It could be off.

As it turned out, it was "perfect" with the far aft and far forward holes, but as you can see some holes are not aligned.

Just be aware of this when performing the procedure.

__________________
Bill

RV-7
Op Lims in hand 12-7-17
1st Flight 1-27-18
2017 Dues Paid
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 05:36 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.