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Post  Canyonman Thu Nov 12, 2020 7:45 pm

Hi All,

What is the tooth count on the gears used for the dual 049?
Ken
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Post  davidll1984 Thu Nov 12, 2020 8:00 pm

Good question ❓ informations is somwhere in post sure
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Post  sosam117 Thu Nov 12, 2020 10:44 pm

Canyonman wrote:Hi All,

What is the tooth count on the gears used for the dual 049?
Ken

Maybe Bernie can help you out?
I think he may have one to look at?

That is the design with two.049 engines with pinion gears turning a larger spur gear that spins the prop?
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Post  Jason_WI Thu Nov 12, 2020 11:27 pm

The better ones you find occasionally use Boston gears. 18 tooth on the engine and 22 tooth driving the prop. I have some that use finer pitch gears than these and made from aluminum. Not sure how those would last. Those are packed away.

Gears for dual 049 7510a510
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Gears for dual 049 D5e74a10


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Post  Canyonman Thu Nov 12, 2020 11:46 pm

HI. Hey Many THANKS! I see the one is G-168 all I can see on the other is H 22. Is that correct.
Love that radial!! Does it use the same gears???
Thanks again for your help!! Ken
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Post  davidll1984 Fri Nov 13, 2020 10:14 am

Want To build twin wit variables pitch like on heli tail rotor using hélicoptère parts self made parts
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