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Role Patrol flying boat
National origin United States of America
Manufacturer Hall-Aluminum Aircraft Corporation
First flight November 15, 1932
Primary user United States Navy
Number built 1

The Hall XP2H-1 was a American prototype four-engined biplane flying boat of the 1930s. Intended as an experimental very long range maritime patrol aircraft, a single example was built.


Development and design

In 1930, the United States Navy ordered a single example of a large flying boat from the Hall-Aluminum Aircraft Corporation, to meet a requirement for an experimental very-long range patrol aircraft. The resulting design was designated XP2H-1 and was a four engined biplane. It had an all-aluminium hull, a scaled up version of that used in Hall's smaller PH flying boat, which accommodated a crew of six. The wings were of fabric skinned aluminium construction and were of trapezoidal shape. The engines, Curtiss V-1570 Conquerors were mounted in tandem push-pull pairs between the wings.[1][2]

The XP2H-1 first flew on November 15, 1932, and was extensively tested, demonstrating excellent performance, being 11 mph (18 km/h) faster than predicted.[3] It was possible to cruise on just two engines to extend range, and in 1935, the XP2H-1 was used to carry out a non-stop flight between Norfolk, Virginia and Coco Solo, Panama Canal Zone in 1935, taking 25 hours and 15 minutes to fly the 2,000 miles (3,200 km).[4] It was destroyed later in the year attempting a landing in open water.[5] No further P2Hs were built, with the US Navy equipping its patrol squadrons with smaller flying boats such as the Consolidated P2Y.


 United States


Data from General Dynamic Aircraft and their Predecessors [3]

General characteristics

  • Crew: 6
  • Length: 64 ft 6½ in (19.68 m)
  • Wingspan: 112 ft 0 in (34.15 m)
  • Height: 25 ft 6 in (7.77 m)
  • Wing area: 2,742 ft² (254.8 m²)
  • Empty weight: 20,856 lb (9,840 kg)
  • Loaded weight: 35,393 lb (16,087 kg)
  • Max takeoff weight: 43,193 lb (19,633 kg)
  • Powerplant:Curtiss V-1570-54 Conqueror V-12 water cooled, 600 hp (448 kW) each



  • Guns: Five flexibly mounted 0.3 in Browning machine guns in nose, dorsal waist and tail positions
  • Bombs: 2,000 lb (909 kg) bombs

See also

Comparable aircraft


  1. ^ Wegg 1990, pp.113-114.
  2. ^ Flight January 24, 1935, p.94.
  3. ^ a b Wegg 1990, p.114.
  4. ^ Flight 21 February 1935, p.195.
  5. ^ Loftin 1985, Chapter 8: Boats in the Sky :Biplane Flying-Boat Developments, 1920-30.


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