1550th Aircrew Training and Test Wing
                The Hill Air Force Range transferred the last of its three Piasecki H-21 Workhorse helicopters to the recently activated 1550th Aircrew Training and Test Wing in June 1971. The unit used it as a ground trainer.
                
                    
                        PHOTO BY:
                        Historical photo
                    
                    
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                        200507-F-F3495-0004.JPG
                    
                    
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