With a passenger capacity of four (in addition to the two crew), the aircraft was a rescue/utility helicopter. With a company designation of PD-18, it carried the designation HUP-1 in the U.S. Navy.
VTOL type: Helicopter
Lift devices: 2 in Tandem (Fore/aft) configuration
Crew required: 2 in Side-by-side arrangement
Landing gear: Wheels (non-retractable)