Front Drive TT Gear Tooth Count

Derek · Post by **Derek** » Wed Dec 31, 2014 1:26 pm

I was just looking at HeliDirect's website and I noticed that there are two Front Drive TT Gears for my 600. One is a 34 tooth count and the other was a 40 tooth count. My 600 runs the 34 tooth count. Fair enough!

It just got me thinking, if I were to use the 40 tooth count, that would actually slow the tail rotor down, right?

Lee · Post by **Lee** » Wed Dec 31, 2014 2:33 pm

Yep. Its for running higher head speeds but keeping the tail speed down.

Derek · Post by **Derek** » Wed Dec 31, 2014 4:12 pm

Thanks for clearing that up, Lee!

Post by **danhampson** » Wed Dec 31, 2014 9:41 pm

You also have to mod the frame so that you can get proper mesh between the auto gear and torque tube drive gear, i did the mod to my 550 when i built it as i wasn't happy with the gear mesh it just felt too slack, as well as setting the mesh in all the umbrella gears with shims.

Derek · Post by **Derek** » Wed Dec 31, 2014 9:42 pm

thank you Dan!

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Front Drive TT Gear Tooth Count

Front Drive TT Gear Tooth Count

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