I did mention briefly earlier in this thread about my 'working' Senior I have four for different purposes but this one is the one I use extensively for primary training and on occasion glider piggyback launching. It is powered by the wonderful little OS .35AX, Yes smaller than the recommended displacement but and this is a big 'but' if it is a kit built version that has not been excessively 'improved' with reinforcing or is the Sig arf version the little engine is a highly desirable combination.

If your Cadet is some of the less desirable (heavy) clones I would not suggest the smaller engine. For example before we stopped recommending them the clone called the Super Seniors started coming in ready to fly three to four pounds heavier than the Sig Seniors.

My sig with the thirty five is superb as a trainer and what I start virtually all my students with, but what is a surprise is it even handles glider launching very well with the smaller gliders when we have a Piggyback/aerotow day., Its a working airplane. Depending of course what you are doing with the airplane such as my XC Cadet, there is no need at all for great gobs of power in fact for the new folks you are better off with the smaller engines.

John