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Japan Maritime Self Defense Force / JMSDF - Fleet Air Force
Shin Meiwa PS-1 / US-1A
Flying Boat - Seaplane
 

shin meiwa ps-1 us-1a flying boat japan maritime self defense force jmsdf sar 71 kokutai squadron atsugi 04x
 
10/23
Aircraft and users:
 
Serials:
 
 PS-1
5801 / 5802 / 5803 / 5804 / 5805 / 5806 / 5807 / 5808 / 5809 / 5810
5811 / 5812 / 5813 / 5814 / 5815 / 5816 / 5817 / 5818 / 5819 / 5820
5821 / 5822 / 5823
all retired

US-1A
9071 / 9072 / 9073 / 9074 / 9075 / 9076 / 9077 / 9078 / 9079 / 9080
9081 / 9082 / 9083 / 9084 / 9085 / 9086 / 9087 / 9088 / 9089 / 9090
all retired
 
 
former Squadron:
Air Rescue Squadron 71 (第71航空隊 - 71 Kokutai)
based at Atsugi Air Base
  
 
 
The Shin Meiwa PS-1 and US-1A was a large STOL aircraft designed for anti-submarine warfare (ASW) and air-sea rescue (SAR) work respectively by Japanese aircraft manufacturer Shin Meiwa. The PS-1 anti-submarine warfare (ASW) variant was a flying boat which carried its own beaching gear on board, while the search-and-rescue (SAR) 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 (MPA). Following the demonstration of a converted Grumman HU-16 Albatross testbed aircraft, referred to as the UF-XS, the Japan Maritime Self-Defense Force (JMSDF) 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.

Shin Meiwa were keen to develop additional variants and derivative aircraft, including substantially larger designs which they had studied, but many of these ambitions remained as paper projects only. During the 1980s, the JMSDF decided to adopt land-based Lockheed P-3 Orions, displacing the PS-1s from the ASW role and leading to the variant's retirement during 1989. Following the withdrawal of the last active US-1A in 2017, the type has been replaced by the ShinMaywa US-2, a modernised variant.

Specifications:
Crew: 4 flight crew, 1 auxiliary crew seat and 2 observers
Capacity: 20 seated passengers / 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)
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
Powerplant: 4 x Ishikawajima-Harima / General Electric T64-IHI-10J turboprop engines, 2,605 kW (3,493 hp) each
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)
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

source: wikipedia+
 
images

shin meiwa ps-1 flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 5801 03
PS-1 / 5801

shin meiwa ps-1 flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 5801 02
PS-1 / 5801

shin meiwa ps-1 flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 5802 02
PS-1 / 5802

shin meiwa ps-1 flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 5822 5821 02
PS-1 / 5822, 5821, 5817, 5818, 5820

shin meiwa ps-1 flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 5823 03
PS-1 / 5823

shin meiwa ps-1 flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 5823 02
PS-1 / 5823



shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9072 02
US-1A / 9072

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9079 04
US-1A / 9079

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9079 03
US-1A / 9079

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9079 02
US-1A / 9079

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9081 02
US-1A / 9081

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9087 02
US-1A / 9087

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9089 06
US-1A / 9089

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9089 05
US-1A / 9089

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9089 03
US-1A / 9089

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9089 02
US-1A / 9089

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9089 04
US-1A / 9089

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9090 02
US-1A / 9090

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9090 03
US-1A / 9090

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9090 04
US-1A / 9090

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9090 06
US-1A / 9090

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9090 07
US-1A / 9090

shin meiwa us-1a flying boat japan maritime self defense force jmsdf sar 71 squadron atsugi 9090 decommissioning 05
US-1A / 9090 - decommissioning ceremony
 
 
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