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tail rotor shaft drive in the boom for the RW
Location: Qld Australia
Certificates: pilot, owner builder
Graeme Smith Offline
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Posts: 63
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Joined: Dec 2025
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#26
07-21-2026, 01:48 AM (Edited 07-21-2026, 01:55 AM by Graeme Smith.)
We are nearly at the end so here is some snapshots or the TR GB. This setup will fit on any RW boom and with the talon the existing shaft drive could be slightly modified to drive this GB as well, I would need to know more about the input RPM of the talon shaft drive as I have no specs at all only seen some drawings and photos.
This model has been designed to accept a tail shaft rpm of 2487, and it steps up the tail rotor shaft output to 2860rpm
[Image: 3-D-screenshot-from-below-of-TR-Gearbox.png]
[Image: 3-D-screenshot-TR-GB-from-below.png]
[Image: 3-D-view-of-complete-tail-rotor-gearbox-...-mount.png]
here is some views of the Secondary gearbox, it mounts on the shaft coming from the secondary, (where the drive TR vee belt pulley mounts, This only works if the belt driven fan and top radiator shroud is removed and my outside scoops and top shroud replaces them

[Image: Sec-GB-iso-view.png]
[Image: Sec-GB-pax-side-view.png]
[Image: Sec-GB-pilot-side-view.png]
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RE: tail rotor shaft drive in the boom for the RW - by Graeme Smith - 07-21-2026, 01:48 AM

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