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  #1  
Old 06-07-2021, 12:35 PM
Freemasm Freemasm is offline
 
Join Date: Nov 2017
Location: Orlando
Posts: 658
Default Aileron Skin

I'm building an F4 (Rocket lite) with a "standard" RV-4 wing. I've heard side discussions about the aileron skins being updated to a thicker gage. The skins I have are 016. I've seen an RV-8 drawing but it only references a pre-punched part/part number. No material dims.

What are my current risks as is?
Should I go ahead and plan on reskinning? If so, at what thickness?

One step forward. Two steps back. Story of my build life. Thx.
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  #2  
Old 06-07-2021, 01:07 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 5,252
Default

Looking at the RV-8 pre-punched Chapter 4, the parts list, the RV-8 aileron skins are .020.

Dave
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  #3  
Old 06-07-2021, 01:50 PM
HFS HFS is online now
 
Join Date: Aug 2009
Location: Lemoore, CA
Posts: 460
Default Updating Aileron Skin Thickness

I think you will find Van's very reluctant to make "special" skins other than what is called out in the plans. 30 years ago they would (I have a set), but now - not so much. I tried to get them to make me a set of .020" aileron skins for an RV3 I am currently building - answer was "We don't do that anymore."

Good Luck - maybe an "aftermarket" manufacturer?

HFS

HR II S/N 002
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  #4  
Old 06-07-2021, 03:04 PM
Freemasm Freemasm is offline
 
Join Date: Nov 2017
Location: Orlando
Posts: 658
Default Thanks to all

I suppose the 016s are guaranteed to crack?

Can probably form one myself if:
I can borrow the long brake at the FBO
I get enough 020 to ruin a couple first

Any other info, please forward along. Thx.
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  #5  
Old 06-07-2021, 07:45 PM
Stewbronco Stewbronco is offline
 
Join Date: Sep 2019
Location: Langley BC
Posts: 264
Default RV8 quick build ailerons

Just buy a set of RV8 quick build ailerons ....they come fully assembled and are same dimensions as RV4 ...
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  #6  
Old 06-07-2021, 09:46 PM
Nick's Avatar
Nick Nick is offline
 
Join Date: May 2007
Location: Rosharon, TX
Posts: 181
Default

Quote:
Originally Posted by Stewbronco View Post
Just buy a set of RV8 quick build ailerons ....they come fully assembled and are same dimensions as RV4 ...
This. Or -8 parts and build em up. I went from .016 RV-4 Ailerons to .020 skinned -8 Ailerons because of skin compression at higher speeds. Yes it's real and yes it made it fly like a new airplane.
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Nick "Rehab" Nafsinger
91TS Rosharon, TX
RV-4 Bought 2019, Day to Day Restoration while still flying. SDS EFI IO-360, Hartzell CS, DanH inspired custom intake, G3x Panel
RV-8 SB, "Back burner project."
RV-10 Built 2010, Sold 2019
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  #7  
Old 06-08-2021, 07:23 AM
Freemasm Freemasm is offline
 
Join Date: Nov 2017
Location: Orlando
Posts: 658
Default Dilemma

Quote:
Originally Posted by Nick View Post
This. Or -8 parts and build em up. I went from .016 RV-4 Ailerons to .020 skinned -8 Ailerons because of skin compression at higher speeds. Yes it's real and yes it made it fly like a new airplane.
Thanks to all. Here is what I'm afraid of.

These are all slow build construction. If I purchase -8 parts (pre-punched), worry the ailerons will then be out of plane with the flaps. Or maybe the trailing edges won't align, etc.

I'd like to get a ride in this #$%@! thing before I die.
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  #8  
Old 06-08-2021, 12:33 PM
Stewbronco Stewbronco is offline
 
Join Date: Sep 2019
Location: Langley BC
Posts: 264
Default Not a worry

Ailerons and flaps will be fine as you would also need to buy some of the mounting brackets ( part number escapes me ) ...they come predrilled and blank ...so if the predrilled isn't bang on ....you can drill your own . Takes a bit of work and but covered in several posts on VAF
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  #9  
Old 06-08-2021, 01:46 PM
PhatRV PhatRV is offline
 
Join Date: Mar 2018
Location: Buena Park, California
Posts: 777
Default

Quote:
Originally Posted by Freemasm View Post
Thanks to all. Here is what I'm afraid of.

These are all slow build construction. If I purchase -8 parts (pre-punched), worry the ailerons will then be out of plane with the flaps. Or maybe the trailing edges won't align, etc.

.
Even when you build the pre-punched RVs, there is no guarantee the flap and aileron edges are aligned perfectly.
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RV8 standard build: 90% completed (90% to go)
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