I was just surfing the web on a snow day and came across the rotax web page and then saw this engine
https://www.rotax.com/en/products/rotax-powertrains/details/rotax-550.html
by the picture and specs it looks like a replacement for the old dual carb single ignition 503. any thoughts on possibly replacing an old 503 with one and a belt drive for an airplane?
https://www.rotax.com/en/products/rotax-powertrains/details/rotax-550.html
by the picture and specs it looks like a replacement for the old dual carb single ignition 503. any thoughts on possibly replacing an old 503 with one and a belt drive for an airplane?