VTAS Roll Pitch Helmet Fixture

Designed for the Armstrong Laboratory, Wright Patterson Air Force Base, this Visual Target Acquistion System (VTAS) fixture provides two coincident axes of helmet rotation about a simulated tragion (top of the spinal column).

Roll Pitch Helmet Fixture: Photo 1

Below and right:  Three-point kinematic couples employed in this device have given arc-minute pitch and roll data free of play or hysteresis for over 20 years.

Roll Pitch Helmet Fixture: Photo 2 		Roll Pitch Helmet Fixture: Photo 3


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