Have a TME smoke system and was thinking about putting it into my Sig LT-40. Engine is an OS 40 LA with 10x6 apc. Have a design for preheating and it should work, according to TME directions.

Was going to go with a 4 oz smoke tank and enough batteries for a few smoke flights. Was also thinking about mounting the assembly under the aircraft in a removable tray.

Will this add too much wing loading or not?

Any comments will be appreciated.

That plane is pretty light and big. I don't think it will be a problem.

I strap a digital camera set-up to my LA 40 powered Avistar and it handles it just fine.

A little extra weight on a LT-40 isn't going to hurt it any. However, you may have a tough time getting decent smoke out of a .40 two stroke. Good luck.