Hi,

I really have to recommend the Kioritz 21.2 to 25cc engines for this plane. They are light and powerful. The Homelite 25cc is also a good engine, but in my opinion a little too heavy for this size plane. The Echo/Kioritz engines are pretty pricey to buy new however. I came up with mine by scrounging swap meets and Echo dealers. Sometimes the dealers have thrown away equipment, items that were never picked up, etc., that you can buy cheap. As long as the owner put oil in the gas, these engines rarely wear out; usually something else goes wrong with the tool that causes it to be thrown away. I've also had some luck on e-bay, though you have to watch shipping charges or the price can get a little high doing that as well. The best little Echo is the 23.6cc made in the middle to late '90s.

If you do a Big Stick, just beef up the firewall a bit, (it won't need much), and mount the rudder and elevator servos in the tail. That should get you close enough on the c.g. that just moving the battery around will fine tune it.

Good luck,
AV8TOR