I currently have a .76 engine to put into a t/f F4U corsair.But before taking it out and crashing all my money down the drain I decided to invest into a trainer. What I want to know is can you put a .76 2 stroke engine into say a .40 or .60 trainer?

Thanks

You can go both ways on this one. On one hand you can never have too much power, it gets you out of trouble many times. So you could put the .76 in a .40 trainer, add some weight aft, with will be necessary because the plane is not designed for that much weight up front, and have the ability to save it by flying away from difficult situations, something you whouldn't be able to do with a smaller engine. Also, when you get used to it, you will still be able to have fun with it and not put it away right away.

On the other hand, a .60 trainer is bigger, it flies better, it handles wind better, you can see it better and further away, it will fly slower because it will not be overweight, and so it will take off and, most importantly, land much slower.

It's up to you. My opinion is go with the .60 size trainer. It's advantages are more important for a begginer. It is very frustrating crashing your trainer before you learn how to fly well enough to be ready for your next plane. Trust me, I know. But that's just me.

Hope I helped

A 76 should be OK in a 60 size trainer, but I would recommend against putting one in a 40 size. This might be just a little too much grunt!

If the trainer is your first RC plane I would recommend that you do not try and go straight from it to the Corsair. The very least you should consider is getting some low wing flying experience under your belt, better still would be to get a couple planes between the trainer and the Corsair.

There are some good threads around on flying warbirds, if you haven't already done so they are well worth looking up.

Good luck with the Corsair, they look awesome on a low pass with the gear up. Don't cover it with Insignia Blue Monokote or CorsairJock will come round and get you

Terry

As a beginner on a trainer, that big of an engine will get you into a lot more trouble than it will get you out of. In fact a good 46 is a lot of engine for a trainer. If you want to use that engine most defiently you need a 60 sized trainer.

A 76 sized engine on a 40 sized plane and wings that are fastened on by rubber bands... not a good mix.

I also second the recommendation on at least one more plane between the trainer and warbird, or at least a good bit of time on the buddy box with the Corsair.

I think a 60 sized trainer is great to have, I wish I had been able to start with a bigger plane.

Do not put an engine that big in a 40 size plane. You will tear it to shreds. It will be slightly large even on a 60 size trainer. I would get a 60 size and glas the center cection of the wing. Then I would fly it with a little caution on the trhrottle. You should be ok with a 60 trainer. Good luck.

Mark Shuman

I agree with Gringo... the Corsair is NOT a good second plane... take a good look at this picture. it was not even his second plane. the Corsair is just not a good second plane! Oh... yeah put the 76 on a 60 size trainer or you can put it on a 40 but make sure that you limit the throttle to a more appropriate amount. you will read a lot of threads that say their trainer disentegrated in the sky... not a pretty sight i'm sure!

A Hobbistar 60 or Tower 60 would be OK for your.75. I have seen a Nexstar converted to a .60 & it was very impressive.

As for the Corsair as a second plane -- only if if you didn't like it much -- you wouldn't have it very long.

Serafim -- you certainly can have too much power -- put that 75 into an LT-40 & watch the results -- despite the LT-40's generous size, it would probably lose its wings in level flight at full throttle.

britbrat, I tottaly agree. But you don't HAVE to fly at full throttle on level flight. It's too much only if you use it when you shouldn't. Anyway, my point was also to put it in a .60

I think there would be a couple of issues here related to 40 sized trainers. First, the weight would have to be offset in the rear (as has already been pointed out). This will make your trainer harder to land (more weight = more wing loading = faster landings). This is against the desired traits of a trainer. Secondly, the engine might not fit the mount at all (but, it may!). Thirdly, you couldn't get the ground clearance to fit the sized prop that thing needs to keep from over-reving it. Now, with a computer radio, you could set the travel adjustment, and it would never reach WOT. That might be a solution. However, I would still be scared of the torque that thing would have against the firewall when taking off. You might just rip it in half on the runway! I agree with most--a 60 sized trainer would be much better. I still would change the travel rate so that it would go to WOT, though. Especially at first.
Just my .02

Definitely go with a 60 size trainer.

If you want to build one, the Great Planes PT-60 would be a good choice. It's big and strong. Mine is a great flyer.

If you want an ARF, there are tons of choices. The Global Right Flyer 60 is really good. Also the Hobbico Superstar 60 or Hobbistar 60, Tower Trainer 60........... the list goes on and on. They're all good, just pick the one that looks best to you and have a lot of fun with it.

I agree.

There is a guy at my field that has this Kadet with a Saito .72 in it. The only mod to the plane is the wing is bolted on instead of the rubber bands. It may be the kit version, and not the ARF.
It flys more like a Patriot than a trainer, but he isn't using it as a trainer. With good throttle management, it can be flown way over-powered like this. For a beginner, I wouldn't recommend doing something like this. I suggest you save the big engine for the corsair and get a setup just for training. If you stay in this hobby long enough, you'll eventually end up with lots of engines and gear laying around just waiting for a plane to put them in!

Jesse