XHJP-1 (HUPs) – XHJP-1 HUP-1/2/3/4 H-25
In 1945, the Navy issued requirements for a compact utility/rescue helicopter to operate from aircraft carriers, battleships, and cruisers. The industry wide paper competition was won by single-rotor Sikorsky (XHJS-1) and Piasecki overlapped tandem (XHJP-1). A side-by-side flight/mission evaluation by…