Hall XP2H

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XP2H-2
Hall XP2H-1 in Flight.jpg
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 an 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. The XP2H-1 was the largest four engine biplane aircraft ever procured by the US Navy.[1]

Development and design[edit]

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-aluminum 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 aluminum construction and were of trapezoidal shape. The engines, Curtiss V-1570 Conquerors were mounted in tandem push-pull pairs between the wings.[2][3]

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.[4] It was possible to cruise on just two engines to extend range, and in 1935, the XP2H-1 was used to carry out a nonstop 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).[5] It was destroyed later in the year attempting a landing in open water.[6] No further P2Hs were built, with the US Navy equipping its patrol squadrons with smaller flying boats such as the Consolidated P2Y.

Operators[edit]

 United States

Specifications[edit]

Data from General Dynamic Aircraft and their Predecessors [4]

General characteristics

  • Crew: six
  • 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: 4 × Curtiss V-1570-54 Conqueror V-12 water cooled, 600 hp (448 kW) each

Performance

Armament

  • 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[edit]

Related development
Aircraft of comparable role, configuration and era

References[edit]

  1. ^ Test Pilot AIRPOWER, September 1974 pp. 11-12
  2. ^ Wegg 1990, pp.113-114.
  3. ^ Flight January 24, 1935, p.94.
  4. ^ a b Wegg 1990, p.114.
  5. ^ Flight 21 February 1935, p.195.
  6. ^ Loftin 1985, Chapter 8: Boats in the Sky :Biplane Flying-Boat Developments, 1920-30.