HI,
I don't know for sure if there is an other thread about this subject but anyway, I'm thinking of buying the Hangar 9 T-34 Mentor, and my question was; what's the best engine I could use? I don't have to have the cheapest engine or the most expensive one, just the best

Well, my guess is that it "MUST" be a 4-stroke, maybe a saito 82 or saito 100

I used a Saito 72 and it handled well - and flew scale-like.

Jerry

Thanks for the advise, but what would be the best engine to preserve the scale looks? Maybe a two-stroke with in-cowl muffler or a 4-stroke with flexible exhaust?

Well, for scale SOUND you might wanna go 4-stroke, for looks you could mount the engine inverted and use a Slimline Inverted Pitts muffler, and cut the outlets almost flush with the cowl

I have this plane and its one of my favorites. I have a Saito 72 in mine and it flies super. I don't think there is anyway to hide everything under the cowl because of the nosegear rails and equipment. The best way seems to be side mounted with the exhast down through the bottom with an extender.

On the two stroke side, I flew mine with a Magnum .46 XLS. Plenty of power, flew well at 50-60% of throttle, take off run of 200' or so on a not-so-smooth runway.

I side mounted the engine, and routed openings in the cowl for the cylinder head and muffler. I also don't think it's possible to completely enclose the engine/muffler for a total scale look because of the landing gear set up. Unless, of course, you're talking about going electric.

Another thing that I'd do: use a metal clevis on both the elevator and rudder control linkage. The elevator uses a metal torque rod, and I think it abraided the nylon pin in the H9 supplied clevis until it broke. Unfortunately, this was at the top of a loop. The vertical dive from 200' up was breathtaking, but the sudden stop at the end kind of ruined my day.

Ouch man, sounds painfull [:@][&:]

Yeah, it was, especially in my left rear pocket!

Damn wallets, they can't stand the heat [8D]

lol, anyway I think I'll go for the 4-stroke. They sound a lot better than 2-strokes and they have a magnificent idle.

Great choice colibri-flyer, you won't be disapointed, but keep in mind that 4-strokes are SOMETIMES harder to tune than a 2-stroke.

Just so you won't say no one told ya

Good luck

OK thanks for the advise

I have some experience with four-strokes and they ARE more diffcult to tune.I have the Saito FA-90R3 3-cylinder radial and that was very very hard to tune.

But it works fine now.