I just bought the .50 size Yak 54 distributed by AK Models and I'm debating as to which engine I should run. I've calculated the expected weight with a 61SF and a 46FX to see what I should use. With the 61, the plane should come in around 6.32 pounds and with the 46 it should weigh 5.75 pounds. The wingspan is 52" and the wing area is 525 sq. inches. I'm getting a wing loading of 26.99 oz/sq.ft with the 61 and 24.55 with the 46. This doesn't seem to be a big difference to me... I'm kind of at a loss as to which engine I should use. I'm not looking to do hardcore 3D with this plane but I'd like enough power to do some extended vertical maneuvers and the occasional hover. I would really appreciate any input.

Shane