Sioux Warrior is most famous Korean War Helicopter
. US Marine Corps HTL-4s arrived in Korea as part of Observation Squadron 6, VMO-6, and they served in Korea throughout the war. Four US Army H-13Bs (Sioux) of the 2nd Army Helicopter Detachment arrived in Korea in late December 1950 and were the first US Army helicopters to serve in Korea. They proved their value during their first month of operations by evacuating more than 500 casualties from the combat area during January 1951. They proved so valuable for medical evacuation that in 1952 fifteen H-13Bs were converted to carry external stretchers and were designated H-13Cs. The other main use of H-13Bs during the Korean War was for battlefield observation and surveillance.
Popular TV series M*A*S*H
is based on Sioux helicopter.