Front Drive TT Gear Tooth Count

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Derek
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Front Drive TT Gear Tooth Count

Post by Derek »

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?
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Lee
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Re: Front Drive TT Gear Tooth Count

Post by Lee »

Yep. Its for running higher head speeds but keeping the tail speed down.
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Re: Front Drive TT Gear Tooth Count

Post by Derek »

Thanks for clearing that up, Lee!
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Re: Front Drive TT Gear Tooth Count

Post by danhampson »

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.
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Re: Front Drive TT Gear Tooth Count

Post by Derek »

thank you Dan!
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