Answer:
Technically helicopters are rotor-wing aircraft and US women soldiers during WWII, Korea, and Vietnam were either WACs, WAFs, or WAVEs and were auxiliaries created by President FDR in 1940 to support the American fighting man. WACs/WAVES/and WAFs were officially disbanded in 1975 with the advent of the all volunteer equal opportunity US military.
8 WACs (nurses) died in the Vietnam War, all but one due to accidents.