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Boehm Free Wheel Clutch - 0.047 shaft


The Boehm Freewheel Clutch was invented by Chris Boehm and is a positive free-weeler (it will automatically re-engage). It mounts on the prop shaft BEHIND the prop and the bail pushes on the side of the prop (as shown).

The BEST part is the clutch weighs about 1/2 gram - very light. It is suitable for Peanuts and Dimers.

You MUST grind or file a notch on the prop shaft to capture the set screw. The set screw (2-56) and allen wrench is tiny (0.035") and cannot withstand a lot of torque, so the notch is important.

The bail works best on plastic props with a thin hub area. Wider props, like wood props will interfere with the bail operation. You will need to re-bend the bail wire to free-wheel wider props. If needed, you can replace the bail with 0.032" or 0.025" wire to suit your needs.

You will also need to use some tubing or such to put on the end of the prop shaft to keep the prop on the shaft. The clutch is drilled for 0.047" prop shafts. You could use this on 0.032" shafts, but you should probably bush the hole with some thin-walled tubing to reduce from 0.047" to 0.032".

Each clutch includes a properly sized allen wrench!

These are made by hand, so if stock is low, just order and we will get them made up.

  • Model: Boehm-CL047
  • 20 Units in Stock
  • Manufactured by: Volare Products

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This product was added to our catalog on Sunday 11 November, 2018.

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