Gus,

The RCV-60 was plenty of "urge" as the Brits say, even considering the fact thet I fly at 8000 ft ASL, so at nearer to sea level it should be even better. The feeling of that much torque is something one needs to get used to, but it has more than enough power to get out of trouble; I'd say it's a bit less power than a regular .70 4-stroke at a lot less weight.

If you do a search in the engine forum, you may find an exchange between myself, Otto Kudrna, who distributes RCV in the States, and Ann Marie Cross, who used to head customer support at Great Planes. I was asking whether to go with the .90, and they were both very emphatic about what a terrible idea that was.

Good luck,

Juan M. Villaveces