Engineer Design Test XM59.50 Caliber Machinegun Pintle Mounted on UH-1D Helicopter.
ARMY AVIATION TEST BOARD FORT RUCKER ALA
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The Aircraft Weaponization Project Manager directed the development of a .50 caliber machinegun door mount installation on the UH-1D Helicopter. US Army Test and Evaluation Command test directive directs that the US Army Aviation Test Board determine if the subsystem is safe to send to RVN for evaluation.