The Hall PH was an American flying boat of the 1930s. It was a twin-engined biplane, developed from the Naval Aircraft Factory PN and could hence trace its lineage back to the Felixstowe flying boats of World War I. The PH was purchased in small numbers by the United States Navy and the United States Coast Guard. It remained in service with the Coast Guard until 1944, being used for anti-submarine and search and rescue duties.
In December 1927, the U.S. Navy placed a contract with the Hall Aluminum Aircraft Corporation of Bristol, Pennsylvania for a developed version of the Naval Aircraft Factory PN-11,[1] which itself could trace a development history back to the Felixstowe F.5 flying boat of World War I.[2] The resultant prototype, the XPH-1, first flew in December 1929.[3]
The XPH-1 had identical wings and a similar metal hull to that of the PN-11, but was fitted with a large single fin and rudder. It was powered by two Wright Cycloneradial engines and accommodated its two pilots side by side in an open cockpit, with cockpits for gunners in the nose and behind the wings.[1]
In 1930 the Navy ordered nine aircraft, designated the PH-1, which were fitted with more powerful engines and a partly enclosed cockpit for the pilots.[4] The Coast Guard later ordered seven PH-2 aircraft, similar to the PH-1 but with armament removed, and seven PH-3 units with armament reinstated and a fully enclosed cockpit for the pilots.[1]
Production of the PH recommenced in June 1936 to meet an order for seven PH-2s for the Coast Guard.[1] These entered service from 1938, being the largest aircraft operated by the Coast Guard at that time.[6] In 1939 the Coast Guard ordered an additional seven PH-3 aircraft; they entered service in 1941.[6]
The Hall flying boats were used by the Coast Guard for search and rescue duties and were fitted with specialized equipment for this role. Following the Japaneseattack on Pearl Harbor and the United States entry into World War II, the remaining PHs were painted in U.S Navy Sea Grey to replace the previous silver paint, armed, and used for anti-submarine patrols (particularly during the Operation DrumbeatU-boat attacks off the East coast of the United States in 1942) as well as continuing search and rescue operations.[6] The Coast Guard continued operating the PH-2 and -3 until 1944.[6]
Variantsedit
XPH-1 prototype in flight. Note the open pilots cockpit.
XPH-1
Prototype. Two 540 hp (400 kW) Wright R-1750 engines. One built.
PH-1
Production version for U.S. Navy. Partly enclosed cockpit for pilots. Two 620 hp (460 kW) Wright R-1820-86 engines in short-chordTownend ring cowlings. Nine built.
PH-2
Version for U.S Coast Guard. Two 750 hp (560 kW) Wright R-1820F-51 engines. Armament omitted. Seven built.
PH-3
Improved version for Coast Guard. Long Chord NACA cowlings. Revised enclosed canopy. Seven built.
Donald, David (ed.).American Warplanes of World War II. London: Aerospace, 1995. ISBN1-874023-72-7
Green, William. War Planes of the Second World War: Volume Five: Flying Boats. London: Macdonald, 1962. ISBN0 356 01449 5
Roberts, Michael D. Dictionary of American Naval Aviation Squadrons: Volume 2: The History of VP, VPB, VP(HL) and VP(AM) Squadrons. Washington DC: Naval Historical Center, 2000
Swanborough, Gordon and Bowers, Peter M. United States Navy Aircraft since 1911. London: Putnam, Second edition 1976. ISBN0-370-10054-9
External linksedit
Wikimedia Commons has media related to Hall PH.
Aerofiles
– Aviation Enthusiast Corner
April 07, 2024
hall, american, flying, boat, 1930s, twin, engined, biplane, developed, from, naval, aircraft, factory, could, hence, trace, lineage, back, felixstowe, flying, boats, world, purchased, small, numbers, united, states, navy, united, states, coast, guard, remaine. The Hall PH was an American flying boat of the 1930s It was a twin engined biplane developed from the Naval Aircraft Factory PN and could hence trace its lineage back to the Felixstowe flying boats of World War I The PH was purchased in small numbers by the United States Navy and the United States Coast Guard It remained in service with the Coast Guard until 1944 being used for anti submarine and search and rescue duties PHHall PH 3Role Patrol Flying BoatManufacturer Hall Aluminum Aircraft CorporationFirst flight 1929Introduction 1931Retired 1944Primary users United States Coast GuardUnited States NavyNumber built 24Developed from Naval Aircraft Factory PN Contents 1 Development and design 2 Operational history 3 Variants 4 Operators 5 Specifications PH 3 6 See also 7 References 8 External linksDevelopment and design editIn December 1927 the U S Navy placed a contract with the Hall Aluminum Aircraft Corporation of Bristol Pennsylvania for a developed version of the Naval Aircraft Factory PN 11 1 which itself could trace a development history back to the Felixstowe F 5 flying boat of World War I 2 The resultant prototype the XPH 1 first flew in December 1929 3 The XPH 1 had identical wings and a similar metal hull to that of the PN 11 but was fitted with a large single fin and rudder It was powered by two Wright Cyclone radial engines and accommodated its two pilots side by side in an open cockpit with cockpits for gunners in the nose and behind the wings 1 In 1930 the Navy ordered nine aircraft designated the PH 1 which were fitted with more powerful engines and a partly enclosed cockpit for the pilots 4 The Coast Guard later ordered seven PH 2 aircraft similar to the PH 1 but with armament removed and seven PH 3 units with armament reinstated and a fully enclosed cockpit for the pilots 1 Operational history editDelivery of the PH 1 commenced in October 1931 1 equipping VP 8 from 1932 operating from the seaplane tender Wright and from bases at Pearl Harbor Midway Atoll and the Panama Canal Zone It was replaced by the Consolidated PBY 1 Catalina in 1937 5 Production of the PH recommenced in June 1936 to meet an order for seven PH 2s for the Coast Guard 1 These entered service from 1938 being the largest aircraft operated by the Coast Guard at that time 6 In 1939 the Coast Guard ordered an additional seven PH 3 aircraft they entered service in 1941 6 The Hall flying boats were used by the Coast Guard for search and rescue duties and were fitted with specialized equipment for this role Following the Japanese attack on Pearl Harbor and the United States entry into World War II the remaining PHs were painted in U S Navy Sea Grey to replace the previous silver paint armed and used for anti submarine patrols particularly during the Operation Drumbeat U boat attacks off the East coast of the United States in 1942 as well as continuing search and rescue operations 6 The Coast Guard continued operating the PH 2 and 3 until 1944 6 Variants edit nbsp XPH 1 prototype in flight Note the open pilots cockpit XPH 1 Prototype Two 540 hp 400 kW Wright R 1750 engines One built PH 1 Production version for U S Navy Partly enclosed cockpit for pilots Two 620 hp 460 kW Wright R 1820 86 engines in short chord Townend ring cowlings Nine built PH 2 Version for U S Coast Guard Two 750 hp 560 kW Wright R 1820F 51 engines Armament omitted Seven built PH 3 Improved version for Coast Guard Long Chord NACA cowlings Revised enclosed canopy Seven built Operators edit nbsp United StatesUnited States Coast Guard United States NavySpecifications PH 3 editData from United States Navy Aircraft since 1911 7 General characteristicsCrew six Length 51 ft 0 in 15 54 m Wingspan 72 ft 10 in 22 20 m Height 19 ft 10 in 6 05 m Wing area 1 710 sq ft 158 9 m2 Empty weight 9 614 lb 4 370 kg Gross weight 16 152 lb 7 342 kg Powerplant 2 Wright R 1820F 51 Cyclone 9 cylinder air cooled radial engine 750 hp 560 kW eachPerformance Maximum speed 138 kn 159 mph 256 km h Cruise speed 118 kn 136 mph 219 km h Range 1 687 nmi 1 937 mi 3 119 km Service ceiling 21 350 ft 9 700 m Wing loading 9 45 lb sq ft 46 2 kg m2 Power mass 0 093 hp lb 0 15 kW kg Armament Four flexibly mounted 303 7 7 mm in Lewis guns Up to 1 000 lb 454 kg depth bombs 8 See also editRelated development Felixstowe F5L Naval Aircraft Factory PN Hall XP2HAircraft of comparable role configuration and era Hiro H1H Consolidated P2Y Hiro H2H Saro London Supermarine Scapa Supermarine StranraerRelated lists List of aircraft of World War II List of United States Navy aircraft designations pre 1962 List of seaplanes and flying boatsReferences editNotes a b c d e Swanborough and Bowers 1976 p 254 Donald 1995 p 186 Green 1962 p 175 Roberts 2000 p 677 Roberts 2000 p 116 a b c d Hall PH US Coast Guard Retrieved 13 March 2008 Swanborough amp Bowers 1976 p 255 Donald 1995 p 187 BibliographyDonald David ed American Warplanes of World War II London Aerospace 1995 ISBN 1 874023 72 7 Green William War Planes of the Second World War Volume Five Flying Boats London Macdonald 1962 ISBN 0 356 01449 5 Roberts Michael D Dictionary of American Naval Aviation Squadrons Volume 2 The History of VP VPB VP HL and VP AM Squadrons Washington DC Naval Historical Center 2000 Swanborough Gordon and Bowers Peter M United States Navy Aircraft since 1911 London Putnam Second edition 1976 ISBN 0 370 10054 9External links edit nbsp Wikimedia Commons has media related to Hall PH Aerofiles Hall PH 3 Aviation Enthusiast Corner Retrieved from https en wikipedia org w index php title Hall PH amp oldid 1215180480, wikipedia, wiki, book, books, library,
