Originally posted by captjack
have you flown a twin? counter rotating engines help with p-effect on the rudder and would help eliminate yaw but the deathroll would still occur.deathroll is when the wing panel with the running engise risesand the wing panel with dead engine drops at full power the plane will do an axial roll of close to one per second compared to the one in 5 seconds using airlerons.downthrust should slow the roll rate so you can recover and landgyro coupeled to the rudder will also help correct.you do not want to use ailerons .
Actually, I haven't,,, yet. But, now you guys are making me scared.
I kind of thought that severe yaw would be the problem with one engine out. Is the deathroll due to torque reaction? If so, wouldn't it be severe for the one engine and not so bad for the other? My set up has the left engine going ccw (normal) and the right engine going cw (reverse). The torque reaction of the live engine would be countering the drag of the dead engine/wing. Along with outhrust, I kind of thought that this would virtually eliminate one engine out problems.
Regarding P-factor. Not a uh,,, factor here as the rudder is single and out of the slipstream of the two engines. Hmmm,, now I'm getting the feeling that my rudder/fin is going to be too small.
In 1/2A sizes, reverse props are common, available and cheap but you're right about the reverse engines. The only reverse cranks that I know of are the Cox and the old K&B/Veco .19
Far as death roll,,, is there a chance that there's some kind of P-factor at play here that's operating off of the wing instead of the rudder?