cymaz

Just bought a TT F-130S. Could someone please tell me what APC prop it is most happy with???

I really don't want the expense of buying 3/4 big props as an "experiment". I will stick to 2 sizes at the most to try.

Many thanks

TFF

Depends on the kind of plane.

cymaz

One of these..........











Its 9 3/4 lbs wing span of 66"span and 14"MAC

CustomPC

14 x 10
15 x 8
16 x 6

Check your glow plug threads before you run the engine. There were some that came from the factory with poorly machined cylinder heads.

There is another thread somewhere here in RCU about this engine which documents the issues.

I also have a video on YouTube showing my initial start and break-in of a TT-130. My Channel is MichaelsRCVids

cymaz

Thanks CustomPC,
I found the thread about the poor heads.It was written 2009 so hopefully the issue has been dealt with.
I will buy a 16x6 . Can I get away with using it to break the engine in as well??

CustomPC

It's been a while since i owned the engine.

Of the top of my head, 14x10 was the suggested break-in prop in the manual.

All three props i listed are the same basic load factor.

I use (2 x dia) + Pitch as a basic formula.

So the 14x10 is (2 x 14) + 10 = 38

That model looks like it would be more suitable to a faster prop like the 14x10 or 15x8.