Noah
Well Known Member
The RV-7 and 9 have substantially different capabilities, missions, takeoff and landing distances, cruise speeds, etc. etc. But isn't the only difference between the two kits the wing? Couldn't you build a 160hp RV-7 and then build an RV-9 wing that you could install on the RV-7 when you were doing a mission that required it? Think about it, a whole 'nother airplane for a little more than the cost of a wing kit!
I realize that structural considerations for an RV-9 limit you to 160hp engines (Ref http://vansaircraft.com/pdf/hp_limts.pdf) and I believe that these structural limitations are inherent in the wing design, not the fuselage or empennage. What other technical limitations might there be on making this work? Has anybody ever done this?
Given that a lot of builders get to the wing and never progress beyond that, there are quite a lot of partially completed wing kits out there that could be purchased at a discount. If you made your lights, pitot system, etc compatible you could make the wing plug-and-play. The factory-drilled holes in the spar for the wing-bolts might present an issue, but if those are done on a jig, doesn't it stand to reason that those should fit too?
What say ye, seasoned RVers?
I realize that structural considerations for an RV-9 limit you to 160hp engines (Ref http://vansaircraft.com/pdf/hp_limts.pdf) and I believe that these structural limitations are inherent in the wing design, not the fuselage or empennage. What other technical limitations might there be on making this work? Has anybody ever done this?
Given that a lot of builders get to the wing and never progress beyond that, there are quite a lot of partially completed wing kits out there that could be purchased at a discount. If you made your lights, pitot system, etc compatible you could make the wing plug-and-play. The factory-drilled holes in the spar for the wing-bolts might present an issue, but if those are done on a jig, doesn't it stand to reason that those should fit too?
What say ye, seasoned RVers?