Computer Tuned Propellers

 

"How Can I Tell the Rotation (RH or LH) of My Propeller?"

The simplest way to tell the rotation of your propeller is to look at what's stamped on the hub.  Inboard propellers will generally have LH or RH stamped somewhere on the side of the hub.  This may not be the case with I/O or Outboard props, but don't worry, as there is a foolproof way to tell the rotation on any propeller:

Sit the propeller on a flat surface and place one hand on the trailing edge of a blade and the other hand on the leading edge of the same blade.  Now note which of your hands is higher.  If your right hand is higher you've got a right hand prop.  If your left hand is higher, your prop rotates left.  

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Last modified: December 11, 2000