rvd

I need to pick a .46 for a small pattern/freestlye aircraft. The engine will be mounted inverted so I want a reliable engine that will run upside down. O.S , TT ?? Which?

Crash90

My Feedback: (17)

I have run the os .46FX inverted in 3 planes without a problem.

bpannier

OS 46 FX

Jazzy

I've had a TT Pro .46 inverted in my WM Mustang for years. No Problem! Had one side mounted in a Super Decathalon with no troubles either.

Why pay more for less?

JB Rekit

My Feedback: (3)

OS .46 will work great

downunder-RCU

Pick a brand, any brand. If it runs OK upright then it'll run OK inverted.

ZAGNUT

My Feedback: (1)

sometimes an inverted engine can cause problems if the fuel tank is too high in relation to the carb. you can solve these problems with a regulator like that made by cline or treat yourself to a ys45

dave

Razor-RCU

My Feedback: (50)

Zagnut hit it- YS-45 one of the finest engines made!

My TT Pro-46 runs perfect inverted also-

JWN

My Feedback: (42)

Any modern engine will run fine inverted as long as you install the tank in the proper location as well as take a little extra time to be sure you set the idle needle properly.

John

Jazzy

Downunder and JWN, you guys hit the proverbial nail on the head.

kobago

Hi
A certain engineer working in OS moved to the TT company, and that a TT engine was developed, and I listened.
Therefore, a TT engine looks like OS, and has both high performance.
It is OS if a brand is taken.
It is probably TT if a cost is taken.
kobayan