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Technical Paper

US Army UH-60M Helicopter Main Rotor Ice Protection System

2007-09-24
2007-01-3301
Sikorsky Aircraft Corporation designed a new advanced technology composite main rotor blade for a growth BLACK HAWK helicopter, now designated the UH-60M. The UH-60M main rotor blade has new airfoils, a larger blade chord, and a swept, tapered, anhedral tip, with a rotor ice protection system (RIPS) similar to that of the UH-60A/L helicopter. The UH-60A/L RIPS control system was retained and the new blades were fitted with heater elements similar in geometry to those of the UH-60A/L main rotor blades, but with the outboard extent of the heater mat 10 inches more inboard than that of the UH-60A/L and the woven wire heater resistance was changed to maintain the same power density as the UH-60A/L. Analyses and S-92A® helicopter artificial and natural icing flight test data show that the increased blade chord, improved airfoils, and advanced blade geometry result a minimal change in BLACK HAWK icing flight characteristics.
Article

Sikorsky’s autonomous Black Hawk helicopter takes flight

2019-06-06
Sikorsky tested a new full-authority, fly-by-wire flight control technology kit for the first time on a Sikorsky UH-60 Black Hawk medium-lift utility helicopter. The flight marked the beginning of the flight test program for the soon-to-be optionally piloted rotorcraft.
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