|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

03-21-2012, 09:55 PM
|
|
|
|
Join Date: Mar 2012
Location: Clarksville
Posts: 22
|
|
Clipped wing RV-8
I love what Harmon did for the RV4 giving it a shorter and stiffer wing and coincidentally a higher G tolerance. Is there ANYONE who has done the same favor for the RV8???
|

03-21-2012, 10:14 PM
|
|
|
|
Join Date: Mar 2012
Location: Clarksville
Posts: 22
|
|
Even someone that has removed the fiberglass tips. Any improvement in top end speed?
|

03-21-2012, 10:23 PM
|
 |
|
|
Join Date: Jan 2007
Location: Daleville, AL
Posts: 343
|
|
wing tips
Don't know if you're asking about cosmetics or performance, but 3 of us RV-4s that I know have gone to flat wind tips with fences to improve roll rate and retain stall speed for IAC competition without changing the rib spacing:
Same thing could apply to RV-8s.
Bill McLean
RV-4 Slider
Alabama
|

03-22-2012, 03:21 AM
|
|
|
|
Join Date: Mar 2005
Posts: 5,685
|
|
I did it on the RV-6A (tip replacement)
Long story. Many tips; covered in other threads. It is faster. The roll rate seems faster but that is of no importance to me so no real tests performed.
Bob Axsom
|

03-22-2012, 04:56 PM
|
 |
|
|
Join Date: Aug 2010
Location: Flesherton, ON
Posts: 33
|
|
bonehead composites
Not sure what you'll get with these but looks interesting.
http://www.boneheadcomposites.com/m8...ng%20Tips.html
made of carbon fibre
Cheers
Last edited by Roo747 : 03-22-2012 at 04:58 PM.
|

03-22-2012, 05:20 PM
|
 |
|
|
Join Date: Jun 2006
Location: 8I3
Posts: 3,564
|
|
Quote:
Originally Posted by jenatepilot
I love what Harmon did for the RV4 giving it a shorter and stiffer wing and coincidentally a higher G tolerance. Is there ANYONE who has done the same favor for the RV8???
|
I have a friend who did this on a Super 8, not yet flying. Cut the last outboard bay off and built shortened ailerons.
__________________
Please don't PM me! Email only!
Bob Japundza CFI A&PIA
N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
N8155F C150 flying
N7925P PA-24-250 Comanche, restoring
Not a thing I own is stock.
|

03-22-2012, 05:53 PM
|
|
|
|
Join Date: Mar 2005
Posts: 5,685
|
|
I have seriously considered this as well
Quote:
Originally Posted by rocketbob
I have a friend who did this on a Super 8, not yet flying. Cut the last outboard bay off and built shortened ailerons.
|
In my case I have a fall back, with the tip tanks I can put back 1.5'. However at 180 HP with 21.5' span I get the feeling that going down two rib bays would be a mistake. If I get beat too bad at Texoma on march 31, 2012 I'll have to look at it again.
Bob Axsom
|

03-22-2012, 09:24 PM
|
|
|
|
Join Date: Mar 2012
Location: Clarksville
Posts: 22
|
|
great
great info guys. If my measurements are right, then leaving the wing tips off and making a flush end will take a full 2 feet off the span leaving it at 22'. The harmon II is only 2" less than that so it sounds like a quick fix for faster roll rate and less drag.
ANYone have templates for the flush tip and fences?
|

03-22-2012, 09:59 PM
|
 |
|
|
Join Date: Apr 2011
Location: Wake Forest, NC
Posts: 96
|
|
Quote:
Originally Posted by rocketbob
I have a friend who did this on a Super 8, not yet flying. Cut the last outboard bay off and built shortened ailerons.
|
JM Out of Indy?
__________________
Dennis Roberts
Wake Forest, NC
EAA 1114, Apex, NC
N713DR Super-7 IO/540  SOLD
http://www.drrv7.com
|

03-22-2012, 11:20 PM
|
 |
|
|
Join Date: Mar 2007
Location: 45G, Brighton, MI
Posts: 1,867
|
|
Quote:
Originally Posted by jenatepilot
great info guys. If my measurements are right, then leaving the wing tips off and making a flush end will take a full 2 feet off the span leaving it at 22'. The harmon II is only 2" less than that so it sounds like a quick fix for faster roll rate and less drag...
|
But... The HRII still has a full compliment of ribs (closer spacing), thus a stiffer wing.
__________________
Miles (VAF# 1238, Paid up as of 2018)
RV-7 TU 904KM (reserved)
Wings Fitted and Finish Kit on site
Construction Log
Picasa: Empennage Album, Wings Album, Fuselage Album
1955 Cessna 170B flying since 1982
'To get something you never had, you have to do something you never did.' -Unk.
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 01:19 AM.
|