Hello all Name is Roger am of fairly significant age and am trying to get back into the sport. Have built a couple of planes Sig Kadet and a Clipped wing Taylor craft. Both with the recommended engine sizes. My question is I am now building a Jungmeister 133 Bipe and it calls for a .60 glow engine for aerobatics. How much trouble can I get into if I put a .75 super tigre on it? Is that too much engine for it or are the recommended sizes gospel.

Thanks

I wouldn't think you'd have any problems at all, as long as you observe your balance requirements. There's always "throttle" to keep that beast tamed.

Agreed, The problem with larger engines is that the larger you go, the more weight you have in the nose and the faster you are forced to land. It quits being those walking speed landings.

Maybe about a 90 size 4 stroke would be nice . Sounds better and gives good torque . ENJOY !!! RED

I second the vote for a 90 four stroke. However, the .75 would be OK also.

Ken

The Super Tiger 75 is built on the same size case as the S.T. 60 so it will not weigh any more than that 60, however Super Tigers are all on the heavy side for their displacement. That said, I think it still won't matter in this plane being a biplane which normally would need nose weight. I agree that a 90 four stroke would be nice, but it is also more costly. If your budget calls for it, go ahead with the ST 75, they are a powerhouse for their size.

Welcome back Rchays, I also returned to the hobby after a hiatus(15 years). I would recommend a trainer to warm up with, I was amazed how fast things happened up in the air, the trainer I flew we could find no CG for so flew it as it came(used with an OS 46). It landed way too fast until we put a FP 40 in it, huge difference, it landed like a trainer should again. It took me a while to relearn the muscle memory, I should have gotten a simulator for the computer too.

Calvi.

The 75 will be fine. As stated the bigger the engine, the bigger the prop you have to have ground clearance when the tail is up. As far as speed goes you'll be ok, fly the plane down and chop any power you have on as you cross the threshold of the runway

The 75 2 st will be fine BUT a 4 st will sound so much better. I was always really glad I put a 4 st in my 1/4 scale Stampe.

It would burble past in a very lifelike manner on slow passes.

On bipes with short noses it is common to need lead in the nose to get the CG right. Might as well put in a heavy engine and maybe run a large prop to keep the revs down and make it sound more realistic.

Thanks for all the replies. I am seeing low prices on the 75and can never leave anything stock so to speak is why I picked on that particular engine.
I have already built a Sig kadet with a 40 to learn how to crash lol.
I also have a 1 ft electric cub to fly in the back yard for practice. Hopefully I can get out to the local, or not so local field and get someone to train me.
Again thanks for the replies.

I know it is subjective but what about a radio. I assume 2.4gigs is the like standard nowadays. I was looking at a 7ch Futaba to allow for upgraded planes in the future. Too much radio. Different brand. Go with what the locals use, for training purposes? I would like to stay under 250-300 dollars.

Thanks

I got back into it with a 6 channel Futaba 2.4, excellent radio, does everything my super seven did back in the day. At six plane memory I am running out of room So I have purchased a Futaba 10 ch with lots of memory for my growing fleet LOL

IMHO, when you step up to the mid grade radios you get so much more for your money than with the entry level ones. Any manufacturer's 6 channel radio will fly your planes fine and will give you the most useful programming options like exponential, end point adjustments, and dual rates. But when you step up to the 8-10 channel radios, you get not only the extra channels but also flight modes (very handy), servo slow (great for flaps, retracts, and throttles on temperamental engines), and generally better overall construction. On that last point, you'll get better gimbals usually with a smoother feel and better durability and a more robust case with a larger screen making your programming duties easier to do. Also, telemetry is standard these days on most mid grade radios, which is a nice safety feature that can alert you to a low flight battery, tell you your airspeed, and a half dozen other things. Then you also get lots of smaller perks- more model memories, more digits for your model names so you don't have to abbreviate them, sound alerts for timers and telemetry data, customizable switches, etc. So if you can afford it, stepping up to the Futaba 8J or a similar radio would be a good investment.