Assignments
The squadron operates Sikorsky MH-53M "Pave Low IV" helicopter, specially adapted CH-53 "Sea Stallion" helicopters, with updated avionics. The MH-53M is capable of aerial refueling from the MC-130P Combat Shadow assigned to the 67th Special Operations Squadron. The Combat Shadow, in turn, can be refueled in air by the KC-135 Stratotanker.
Read more about this topic: 21st Special Operations Squadron