Kammala wannan jumla: Zai iya gano tushensa zuwa "Rukunin Bincike na 21", wanda aka kunna a ranar 1 ga Fabrairu 1940 a Moffett Field, California. Ya shiga cikin fada a tsibirin Philippine, daga 8 ga Disamba 1941. An kashe shi a ranar 2 ga Afrilu 1946, daga baya aka kunna shi a matsayin "Rukunin Helicopter na 21", kuma an sake sake shi. Sa'an nan kuma aka kunna don yakin Vietnam a ranar 30 ga Yuni, 1967, an sanya shi zuwa Tactical Air Command, daga baya aka sake sanya shi "21st Special Operations Squadron" a ranar 1 ga Agusta, 1968. Squadron ya shiga cikin duka Operation Frequent Wind, da kuma
Lamarin Mayaguez. Baya ga ayyukanta na yaƙi, rukunin ya shiga cikin ayyukan agaji da yawa.