ORIGINAL: AdrianM
Has any one flown a C140 with an OS 1.60? It weighs the same as a YS 1.40 Sport. Add a perry pump (the FI 1.60 comes with a perry pump in the back plate) and your in business.
Only two have flown so far (that I know off), one powered by YS four strokes, the other by a Hacker c50. I would have thought that an OS 1.60 would be fine for this plane. Certainly not lacking in power anyway