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Wittman. Field.

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In Case You Missed It

2012 Rotorcraft Buyer’s Guide

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The 2012 Rotorcraft Buyer’s Guide includes 49 designs for those who may be interested in building a kit helicopter or gyroplane.

Thrust Line Effects

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The propeller of an airplane generates thrust that drives it through the air. In...

Miniature Yankee

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The BD-17L has much in common with the original BD-1.

Booster or Bravado?

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A few years back, during AirVenture, a person asked me what vibration testing had...