buiding a RV12- very pleased.
We are approximately 40% through a RV 12 construction project. Plans are good, support from Vans has been great. The couple of parts I have needed (failed to read directions carefully) they shipped the same day I ordered them. I am still amazed at how well EVERYTHING fits. It is truly a giant erector set. Currently we have 325 hours in it. Tail is done, vertical and horizontal stabilizer is done, Rudder is complete, wings are complete and the fuselage is about 50% complete. Ordered our finish kit this week.
I was a little concerned about the Rotax (something about cruising at 4900 RPM) but after talking with what I believe were a number of qualified folks, I believe IF you maintain the engine as specified (at least 70% mogas, use the correct oil and make sure the oil temp is up prior to taking off) it will be OK . Most manufacturers are using it so you would have to wonder how Rotax dominates the LSA market if they really were a problem. VANS has never used anything other than a Lycoming in their other planes and they chose the Rotax for their LSA.
We looked at the Zenith 650 and the Jabiru. The Jabiru has had some past problems of engine overheating and I was a little skeptical of the composite from both a construction and maintenance standpoint. The engine looks really nice and was EXTREMELY smooth when I flew it. It was an impressive flying plane.
I liked the 650 but the past wing issues (although they claim the problem is solved) were a little concerning.
I also liked the Breezer but the lack of US built kits was too risky.
Vans is extremely conservative but I believe that is one reason they have been so successful- NO surprises! Although we are not done, to date we have been extremely pleased with our decision. I flew it 3 times before we purchased and every time it was amazing how stable and forgiving it was. My only real heartburn with the RV12 was the lack of a steerable nose wheel which I will just get over.
Dwight