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Home✈️Aircraft🚁HelicopterMiniature Aircraft Whiplash & Fury 55 › Whiplash 800 torque tube bearing assembly distance
10-13-2019 05:36 AM  38 days ago
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RajSingh

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Fresno, ca usa

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Whiplash 800 torque tube bearing assembly distance
I am converting my whiplash v1 to v2 with 800 size tail boom. Does anybody know how far the 3 bearing cups are suppose to be from both ends of the torque tube.
The instructions with conversion kit are for 700 size boom. Thanks
Raj
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10-13-2019 09:48 AM  38 days ago
wjvail

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Meridian, Mississippi

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The short answer is that I don't know what MA recommends.

Whinging on... I would avoid placing the bearings at the "node" of vibration for the torque tube and the best way to do that is to space them slightly randomly. This is an instance where being too exact is a flaw.

If your torque tube is 400mm you might be inclined to put a bearing at 100, 200 and 300mm. I would avoid that. Possibly put one in the center but don't put the other 2 equidistant between the remaining span. It should be enough to move them by 25mm.

Realistically, with 3 bearing supports, you can put them anywhere you want. I find it humorous to note that in early models there was only one support and we put it in the middle. That lead to vibration so we added a second bearing. The bearings were equally spaced along the torque tube. In both instances the bearing(s) are placed at a node.

Skip to 1:15.

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"Well, nothing bad can happen now."
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