<div>What is one the availability of good 40/45 size engines especially in rear exhaust? Should 4 stroke be considered or electric conversion? I think we need to consider different opinions on the forum about this issue. There seems to be interest in a project for a classic 40/45-size plane so a discussion about power would be helpful for me.</div><div></div><div>Thanks</div><div></div><div>Tim</div><div></div>