ekir, the Kaos, spacewalker or Cub would be good choices... the Decathlon... I don't think it would be a good one. The ARF Decathlons on the market for the most part end up in the 7 1/2+ pound range... that's really pushing your .52 given the how the plane should fly... I fly my TT Decathlon with a Saito .72 at 7 1/2 pounds... it's enough... but not by much... I don't think I would like the plane with one of my 52's/ 56's on the nose.

John