The Piasecki 16H was a series of compound helicopters produced in the 1960s. The first version of the Pathfinder, the -1 version, first flew in 1962. The similar but larger Pathfinder II, the 16H-1A, was completed in 1965.
Model 16H-1 Pathfinder one PWC PT6B-2 with one 405 shp
turboshaft engine
Model 16H-1A Pathfinder II larger version with one 1,250 shp (930 kW) T58-GE-8
Model 16H-1C Pathfinder III proposed conversion of the 16H-1A with one 1,500 shp (1,100 kW) T58-GE-5
Model 16H-3J nine-seat development, not built.
Data from U.S. Army Aircraft Since 1947
General characteristics
Crew: two pilotsCapacity: up to six passengersLength: 37 ft 3 in (11.4 m)Wingspan: 32 ft 10 in (10.0 m)Main rotor diameter: 44 ft 0 in (13.4 m)Height: 11 ft 4 in (3,45 m)Empty weight: 4,800 lb (2,165 kg)Gross weight: 10,800 lb (4,870 kg)Powerplant: 1 × General Electric T58-GE-8 turboshaft, 1,250 hp (930 kW) eachPerformance
Maximum speed: 230 mph (370 km/h)Cruise speed: 175 mph (280 km/h)Range: 950 miles (1,530 km)Service ceiling: 18,700 ft (5,700 m) 
