heres my 25cc poulan, at least thats what it said on the case. its from the wacker that converts with a bunch of attachments.im at about 1500 above sea level.74oo with a 16x6 mas wood.first put it on my sons D-V111,14lbs dry.flew it but way underpowered.i now put a 30cc homelite.flys at half throttle.