Excellent plane. A next advanced step from the Stinger series. Mine is the Mk 1 series and has a ST 3000. The Mk 2 has a bit longer tail moment as one of the design improvements. Some pilots tried the Q35 and G38's on the Mk 1's and tended to nose over often. I think the 3000 , 3250 or Moki 1.8 are perfect. It will land at slooooww speed with no tip stall.