Originally Posted by RFSchaller
Having the wings on would increase the moment of inertia, but the torque on the engine mount is the same with and without wings. The wings just make it less obvious when looking out the windo.
I said nothing about the torque on the engine mount. I said airframe.
From Scott" The reason it is not recommended on the other RV models has nothing to do with fuselage strength (and it is not because of a fear of it rolling over). It is because of the inertial damping in roll that the wings provide.The majority of the shake induced by a Lyc. is in roll. Without wings installed, there is much less mass to limit the shake.
There are documented cases of RV's having elevators and rudder damaged because of an engine start/shut down without wings installed.
Can it be a problem with an RV-12? Probably not, but I cant' say for sure because we choose not to take the chance."
Airworthiness signed off by the FAA 1/23/2020
First Flight on 3/14/2020
Phase I Finished on 5/7/2020
VAF donation made for 2021