Quote:
Originally Posted by scsmith
The 7A is much sportier with the shorter wingspan. Very quick roll rate. It is capable of aerobatics. It typically uses the o-320 or o-360 engines. It still makes an efficient cross-country cruiser, but probably not quite as economical as a 9A.
The 9A has a higher aspect-ratio wing, which will allow it to fly on a smaller engine if you want the best cruise economy. o-235 and o-290 are popular engines.
With an o-320 engine, the 9a is still a very fast, efficient airplane (maybe still more efficient than a 7A at high altitude). It is not designed for any aerobatics.
I think you will be very happy with either one. It depends on where you put your priority - sportiness, or cruise efficiency.
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In regards to efficiency........
It sometimes seems that it has a lot to do with the pilot, and perhaps not the plane... ???
I fly my 6A quite regularly with a pilot who owns a 9A. I have an 0360, his has an 0320. Both have carbs & C/S props. The 9A pilot tends to fly his plane at the most economical cruise he can get, without going LOP. Yet twice, when he's flown my plane, and someone else has flown his (same place, same altitude)...........he beat his own plane --- fuel efficiency wise; by using less fuel in mine when both were refueled.
On the other hand, when I fly mine, and he fly's his, he always get's better milage than I do. But I tend to usually fly higher and faster to the destination.
The point is, he's getting some good efficiency out of my 6A, although it's 50 lbs. heavier. He can monitor all four cylinders, and I just have CHT & EGT on cylinder #3. These flights were at the 6500' levels.
L.Adamson --- RV6A
what RV to choose?
of course. Welcome to the Club!
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