I just installed my TT .46 Pro on my 4* 40. Looking at it now, it looks as if the engine is kind of turned to the left a hair. The gap between the front of the plane and the spinner is a little bigger on the right. How is this going to affect it? If need be, i suppose I could put washers behind the mounts on the left side?

Did you drill the holes on the engine mount? If so then that might be where it went wrong, usually you have some RIGHT thrust. Yeah, some washers will help.

It depends, when you say to the left, do you mean as you're looking at the plane from the front, or as if you were sitting in the plane? You generally want some right thrust, that is, the engine should point slightly to the right, while looking straight down at the engine from overhead. Some down thrust is usually a good thing too.

Jesse

Oh, it's definitely from mechanical error. This is my first ARF. And lets just say it's been a learning experience. [X(] Engines usually pull to the left or the right? If it pulls to the right, then maybe it pointing a little left might be a good thing? Ya think?

Another question.... What is a good way to secure the reciever and battery in place? I'm going to wrap the both in 1/2 foam. What methods have you used to keep them in place?

The engine should have some right thrust.. Pointing towards the right
or left side as you look at it...

A good way to secure recievers and batteries is to just use some balsa stock to hold them in place inside the fuse. I generally just cut the pieces to fit snugly between the fuse sides and glue them in place.

Body ... that is why ships and planes call left and right as PORT (left of vehicle as you sit in the cockpit as the pilot) and STARBOARD (right of vehicle as you sit in the cockpit as the pilot).

I think one of the best ways to secure for a small plane is a lot of foam. I do that and it holds everything in place well IF there is a cavity for the whole thing to sit in. After that I will use some foam to cover the whole thing like a 'hatch'. When using foam be careful about the throttle linkage, don't let it strain the linkage if not your EPA will change.

You want right thrust when looking at it as if you're sitting in the plane.
Dennis-

right thrust if you're stand behind the airplane

the reason you need right thrust is to counter the engine's torque,which
will tork to the left...so don't go putting right thrust in an electric.
mount the engine's mount a little bit off center to compesate, if you want
the spinner to be at center.
but i don't think the 4* has right thrust thou...

i sholve it all in there with foam(rx & battery). this way i can shift it later if i need to change
the CG. only thing i can hear rattle is the tank's clunk.
check for that sound after a hard nose over

balance low wing air planes inverted.

lateral balance to help the air plane track better
screwing a screw to the rear of fuselage.
tie a string to the screw and engine's shaft.
shift rx and battery if appliable.
add wight to the wing tip if required