Mine bit the dust after 500 or so flights when the elevator servo quit. An Irvine 46 would not hover the plane however the 53 did with no effort. Nice since the 53 is the same case as the 46. Most 60's are quite a bit heavier. Change ALL the hardware to ball links and fiber rods. Extra weight will be no problem in the tail as mine needed tail weight to hover well (even with a lighter engine). I would like to see this plane with 3" more fuselage length.

EXCAP232