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11-26-2006, 12:52 PM
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Join Date: Sep 2005
Location: Colorado
Posts: 95
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Empennage History
To help me understand the several rudder,VS,HS types, I have a question.
I have heard that late RV-6 kits (2001) had the larger RV-7 VS and rudder Counter balanced). Also other posts have indicated that there were 2 rudders used on the RV-7/8??
Can anyone summarize the timeline of the various HS/VS/Rudders used on the RV-3,4,6,7,8,9 models? I assume the 10,12 models are totally unique and possibly the 9 HS is also.
Thanks,
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Bill
Flying RV-6A
Thinking about RV-?
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11-26-2006, 01:27 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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I can give you the order but not dates. The original -3, -4, -6 had non-counter-balanced rudders. Later on the -6 got the -8 counter-balanced rudder as did the original -7. Next change was to change to the -9 rudder on the -7 for better spin recovery. The -10 is a totally different animal.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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11-26-2006, 02:34 PM
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Join Date: Sep 2005
Location: Colorado
Posts: 95
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Thanks, Mel.
That matches most everything I have been reading. My interest is that I have been looking for an orphaned kit to finish building. One recent RV-6 QB kit (2001) I looked at appeared to have the -7 empennage or VS/Rudder at least. Now it appears it might be an advantage to try for a late -7 as opposed to an early one? I assume the changes were all to make improvements in handling.
bc
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Bill
Flying RV-6A
Thinking about RV-?
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11-26-2006, 02:52 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,027
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Quote:
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Originally Posted by BillyBob
I assume the changes were all to make improvements in handling.
bc
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Actually, the RV-6 only changed to the RV-8 rudder to gain some parts commonality and reduce inventory.
The RV-7 changed to the RV-9 rudder for a slight improvement in spin recovery (it wasn't bad as it was, but it wasn't quite as good as the RV-6, as Van had orig. said). So the different rudder was offered to builders and then standardized into the kits shipped after that tiome.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
Last edited by rvbuilder2002 : 11-26-2006 at 02:53 PM.
Reason: typo
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11-27-2006, 06:08 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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-6
Hi Bill,
IMHO, you can get a better bang for your buck with a -6. Since it has been discontinued and replaced by the -7, the prices seem to reflect that as well. Furthermore, I don't see much speed difference either, having flown both.
Yes, find an orphaned 6 and save money 
Regards,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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