RE: YS 160 DZ
Hi
Yes it's alright with APC 16x12 on 140DZ and 160 DZ with 20 % nitro.
(on 140 DZ if plane is big or heavy near 4700 g, more nitro is better)
Pascal Nowik (of ZNLINE) uses APC 16x11 with 160 DZ on his Twister to get a constant speed.
So engine run very fast but plane does'nt very fast because propeller's step is little.
Regards