Phil Cole Veteran Location: Redwood City CA
| That would be the Century Phoenix. They sell a conversion kit to convert a Hawk. However, I would not recommend an FS52 powered heli as a first attempt. The FS52 has marginal power, so it requires to be tuned just-so to have enough power, and at the same time not overheat.
The major differences are the gear ratio and throttle linkage.
If you have a lot of four stroke experience then go for it. Even then, airplane experience with four strokes will only get you so far. I would advise getting a head speed tach and cylinder head temp meter to make setup easier. Four strokes don't sound like two strokes, so it's hard to tell the RPM by ear, expecially if the people helping you are used to two strokes. The temp. guage helps because you can't simply peak the RPM then back off a few hundred as you do with a plane.
Something like the YS63 has (a lot!) more power, so if you can get it to fit, and the gear ratio is good, you will have a much easier time. I did see a web page somewhere about a Raptor 30 converted to YS63 power. It was quite a bit of work, but the result seemed to be a lot better than the FS52 powered models.
Phil |