HELICOPTER MAIN ROTOR BLADE TRACKING DEVICE.
Final engineering rept., Jun 60-Sep 62,
FAIRCHILD CAMERA AND INSTRUMENT CORP SYOSSET N Y
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The design, development and testing are reported of a Helicopter Main Rotor Blade Tracking Device. In its final configuration, Device 9U96 consisted of a hand-held viewer and its attendant power supply and five corner cube wing tip reflectors of different colors. The device was used to measure the out-of-track of the Main Rotor Blades of an H-37B aircraft. It was found that Device 9U96 wa capable of measuring individual out-oftrack to less than 14 of an inch at the blade cap at night. Testing during the day revealed that the Device did not have full 24-hour capability. Author