hi guys: i have been roaming the net for info on auto convertion for aircraft for more than 6 months. i have an idea of converting G13b or G13BB or G15 or G16B (whatever is available). my Q is what are the engine modification(cran,pistons,rods,...) i have to carry out for the engine to make it ready for aircraft use ? my weight is about 65 kg planning for simple fixed-pitched single-seater. thank you.