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-   -   RV-7 and RV-8 common parts (https://vansairforce.net/community/showthread.php?t=174611)

alcladrv 08-24-2019 07:14 PM

RV-7 and RV-8 common parts
 
My understanding of the development of RVs is that when the 7,8 & 9 were introduced, the 8 came first, followed by the 9 and then the 7, which was a combination of the 9 fuselage and the 8 wings and empennage. Of course, each plane has its unique parts, but if my developmental timeline is correct, what are the wing and empennage parts common to both the 7 and 8?

chaskuss 08-24-2019 08:38 PM

The original prepunched RV8/8A wing uses a different spar. Around 2001, Vans redesigned the main spar for use on the new RV7. They also started putting it on the new, matched hole kit RV8s. This was done to increase parts commonality. From that point on, the wings are virtually identical. Vans originally put RV8 rudders on the 7, but later switched to the bigger RV9 rudder.

Charlie

WingsOnWheels 08-24-2019 08:48 PM

Quote:

Originally Posted by alcladrv (Post 1369048)
My understanding of the development of RVs is that when the 7,8 & 9 were introduced, the 8 came first, followed by the 9 and then the 7, which was a combination of the 9 fuselage and the 8 wings and empennage. Of course, each plane has its unique parts, but if my developmental timeline is correct, what are the wing and empennage parts common to both the 7 and 8?

The 7 came out before the 9. The 9 wings are unique, not common to the other models. Different airfoil. Later on, they started using the larger 9 tail on the 7.

JackZ 08-24-2019 08:58 PM

I do believe that the rv 9a flew almost 2 years before the 7. Not in numerical order
Jackz

chaskuss 08-24-2019 09:06 PM

Quote:

Originally Posted by WingsOnWheels (Post 1369060)
The 7 came out before the 9. The 9 wings are unique, not common to the other models. Different airfoil. Later on, they started using the larger 9 tail on the 7.

The prototype 9A first flew at the end of 1997. Kit production started the next year. The 7 didn't arrive till 2001

N941WR 08-24-2019 09:13 PM

Quote:

Originally Posted by WingsOnWheels (Post 1369060)
The 7 came out before the 9. The 9 wings are unique, not common to the other models. Different airfoil. Later on, they started using the larger 9 tail on the 7.

Is that correct?

Wikipieda lists the -9 as being flown first on June 15, 2000.

And the RV-7 replacing the RV-6 in 2001.

it is my understanding that the first -9A was a modified -6A.

However, I would imagine that the -7 was developed and then modified into the -9 but not made public until Van's drew down the -6/A inventory.

The sequence has never really been clear to me.

Jaypratt 08-25-2019 06:50 AM

H/S
 
The RV7 has a wider fuselage than the RV8. The Horizontal stab has a wider space for the RV7. Those H/S parts are different.

elev666 08-25-2019 07:53 AM

Tips?
 
Can anyone comment on which wing tips are interchangeable?
Mainly looking at the seven and eight wingtips since I have the bat wingtips and I am looking to get the bigger landing /strobe light lens from a buddy who went with Zip tips . His are standard 2012 vintage

Mel 08-25-2019 08:03 AM

Quote:

Originally Posted by elev666 (Post 1369127)
Can anyone comment on which wing tips are interchangeable?
Mainly looking at the seven and eight wingtips since I have the bat wingtips and I am looking to get the bigger landing /strobe light lens from a buddy who went with Zip tips . His are standard 2012 vintage

RV-4, -6, -7, and -8 have interchangeable wingtips.

elev666 08-25-2019 08:31 AM

Tips
 
Thanks for your insight Mel !


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