page_title: Shin Meiwa US-1A
section_title: Specifications (US-1A)
hierarchical_section_title: Shin Meiwa US-1A / Specifications (US-1A)
caption_attribution_description: First of all, a big thankyou for Planephotoman for processing this for me. Taken in bad weather against the light I'd given up on it. I'd always wanted to see one of these fly and was lucky enough to realise my ambiton. Apparently they only fly once a week, on a Monday.
context_page_description: The Shin Meiwa PS-1 and US-1A is a large STOL aircraft designed for anti-submarine warfare and air-sea rescue work respectively by Japanese aircraft manufacturer Shin Meiwa. The PS-1 anti-submarine warfare variant is a flying boat which carried its own beaching gear on board, while the search-and-rescue orientated US-1A is a true amphibian.
  Development of the PS-1 has its origins in flying boat research performed by the Shin Meiwa during the 1950s. The company, believing that their design was capable of regular use upon the open sea, petitioned the Japanese military to acquire the type as a maritime patrol aircraft. Following the demonstration of a converted Grumman HU-16 Albatross testbed aircraft, referred to as the UF-XS, the Japan Maritime Self-Defense Force awarded Shin Meiwa a contract in 1966 to further develop its design via two further prototypes, which were designated PS-X. During 1969, the JMSDF placed the first order for an eventual fleet of 21 ASW aircraft, designated PS-1; orders for the SAR variant, designated US-1A, were also issued during the 1970s.
context_section_description: Data from Jane's All The World's Aircraft 1988-89
  General characteristics
  Crew: 4 flight crew, 1 auxiliary crew seat and 2 observers
  Capacity: 20 seated survivors / 12 stretchers
  Length: 33.46 m (109 ft 9 in)
  Wingspan: 33.15 m (108 ft 9 in)
  Height: 9.95 m (32 ft 8 in)
  Wing area: 135.82 m² (1,462.0 sq ft)
  Aspect ratio: 8.1
  Empty weight: 23,300 kg (51,368 lb)
  Gross weight: 36,000 kg (79,366 lb)
  Max takeoff weight: 43,000 kg (94,799 lb) from water
  45,000 kg (99,208 lb) from land
  Fuel capacity: 11,640 l (3,070 US gal; 2,560 imp gal) usable fuel in five wing tanks + 10,849 l (2,866 US gal; 2,386 imp gal) usable fuel in two fuselage tanks
  Powerplant: 4 × Ishikawajima-Harima / General Electric T64-IHI-10J turboprop engines, 2,605 kW (3,493 hp) each
  Powerplant: 1 × Ishikawajima-Harima / General Electric T58-IHI-10-M2 turboshaft Compressed air generator driving a C-2 compressor
  Propellers: 3-bladed Sumitomo built Hamilton Standard 63E60-27, 4.42 m (14 ft 6 in) diameter fully-feathering reversible constant-speed propellers
  Performance
  Maximum speed: 511 km/h (318 mph, 276 kn) 
  522 km/h (324 mph; 282 kn) at 3,050 m (10,007 ft)
  Cruise speed: 426 km/h (265 mph, 230 kn) at 3,050 m (10,007 ft)
  Range: 3,817 km (2,372 mi, 2,061 nmi) at 426 km/h (265 mph; 230 kn) at 3,050 m (10,007 ft)
  Service ceiling: 7,195 m (23,606 ft) at MTOW
  8,655 m (28,396 ft) at 36,000 kg (79,366 lb)
  Rate of climb: 8.133 m/s (1,601.0 ft/min) at MTOW
  11.883 m/s (2,339.2 ft/min) at 36,000 kg (79,366 lb)
  Wing loading: 331.4 kg/m² (67.9 lb/sq ft)
  Power/mass: 0.232 kW/kg (0.141 hp/lb)
  Take-off distance to 15 m (49 ft): 655 m (2,149 ft) 30° flap, BLC on, on land
  Landing distance from 15 m (49 ft): 810 m (2,657 ft) 40° flap, BLC on, on land
  Take-off distance: 555 m (1,821 ft) at 45,000 kg (99,208 lb) 40° flap, BLC on, on water
  Landing distance: 220 m (722 ft) at 36,000 kg (79,366 lb) 60° flap, BLC on, on water
  Avionics
  APS-80N Ocean search radar
caption: US-1A flying boat
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