I have a Thunder Tiger Easy Trainer (61 WS, Wt approx 5.5lbs) that calls for a .40-.46 2-stroke or the TT54 4-Stroke.

I would like to hang a 4-stroke on this and have a Magnum .52 4-stroke and an ASP .61 4-stroke. Will the Mag .52 with an 11x7.7 prop pull this plane with some authority or might I be better off with the ASP .61?

Thanks for any input,

It will fly as a trainer with the Magnum. But the ASP would make it a lot more fun. You would have to keep the .52 pretty much WOT all the Time. With the ASP you can cruise around at half throttle and give it a burst when you want to do a loop or something.

The Magnum would be a fine engine on a smaller plane though.

Enjoy,

Jim

Thanks Jim.

That's exactly what I wanted to hear

I want to have some zing in this one and I've been looking for an excuse to mount this .61 on something.

If all else fails, MORE POWER! I like that!

Thanks,

Use that 11-7 prop onthe 61 or at least try it. It'll turn up pretty good. A broken in 61 should do 10,000 with a 12-6.

Enjoy,

Jim

...that's what throttles are for. You will be happier with the .61, even happier with an O.S. .70 4S or Magnum .80 4S.

A four-stroke .52, IMO, has little use except for a scale flying airplane (J3 Cub, Cessna 182, etc.)...

Thanks for all the input guys.

I am going to hang the ASP .61 with an 11x7 so I can have some fun with this thing.

Thanks again,

If you can do the 70 os

I once had a CG Eagle II with an OS 70 4stroke, it was one of the most awesome planes to fly. I took all dihedral out, enlarged the elevator life five times it's size and made a huge rudder.

It did awesome flat spins, tumbles and all kind of things, hover was easy. On a 10 mph breeze it could do an almost zero take off roll. Yet I could put around and fly on rudder and elevator.

Just reminicing :disappoin