Is a TT Pro 46 too much for a Thunder Tiger Trainer?
It is suggested to have an engine size .40-.45
Would a TT Pro 40 not be quite enough?

It may be a little strong for it, but if you practice throttle management it will be fine. I had a 46 Pro on a tower 60 trainer and it moved out wonderfully. A 40 sized trainer will take some thought about how to not give it full throttle all the time. Remember, most trainers inherantly change trim the more throttle you give them. I found out, that the more reserve power a trainer has. And, the better chance you have of recovering from a bad (stalled) landing. Good luck.

Backwing

the engine size should not be to much for the plane ,

what elevation do you live at , ?

what elevation is the field that you intend to fly from ?

if you are close to sea level , then a 40 would probly fly it fine , but if your elevation is well above sea level then the 46 would be my choice ,

Highlander

No! The TT46 will be a great engine for your trainer. Once you get the hang of flying you'll be glad you chose the TT instead of a lackluster LA 40

Thanks for the info.
I'll be flying around 400'- 800' above sea level

you should get really good power from the 46 at those elevations , as was stated earlier , throttle control will be a key to success ,but with experiance you will find the sweet spot for your plane , !!!!!!!

I live at 4300 ft and almost always have to go to the higher ends of the scale and with some planes beyond what the manufacturer suggests ,

Great choice,stick it in plane and go fly,might use that little stick on the transmitter called a throttle to slow it down if needed.

I saw one with a TT GP .42 and it flew nice. It would only fly better with the Pro .46.....
Throttle management is the key......nobody says you have to fly at full throttle, but like helicool said, a little extra power can work well in getting you out of a sticky situation!

Mike

Thanks. Guess you guys made a good choice for me.
It just goes to show how great this place is.
I did all my homework and searching on RCU, and made my choice from info at RCU.

Thanks Marc.

I am running a TT Pro .46 in my Thunder Tiger 40 trainer. Its a nice combo. It has the power when you need it and throttles down nicely for slower speeds.

Hey jumpwake,
How do you like the trainer, as a trainer? Any hints?
It's my first plane, and have really only heard good things about it.
My wife just told me that it arrived today, so I can't wait to go and start reading instructions, etc...

I like it a lot. It is my first plane as well. I built it through the winter and am now taking it out for its first flights. I took it out in about 15mph winds last weekend and it was very stable. I found it quite easy to control and do some simple aerobatics.

The only problem I had with building it was:

1. The manual didn't give a specific location for the fuel tank.
2. Routing the antenna wire to the tail fin didn't work
3. the clevis for the elevator was too big to slide into the fuse.

Solutions:
1. I finally was able to get the fuel tank into the very front of the fuse. You may need to trim the ribs of the fuse in order to get it all the way to the front.

2. I routed the antenna wire out the bottom of the fuse and glued it in a straight line all the way to the rear of the fuse.

3. I bought a slimmer metal clevis to use on the elevator.

1 other thing. The engine mount that comes with the TT Pro .46 doesnt match the bolt holes in the fire wall. I simply used the engine mount that came with the plane. Worked pretty well.

Thats all I can think of for now. Have fun building.

Since when do Thunder Tiger Engines come with their own Engine mounts? Mine certainly didn't

I'm sorry, you're right. I forgot I bought this as an accessory. I bought this mount.

So, if you bought this one...it won't match up.

Actually there is an engine mount in the kit. I'm just now going through it tonight.