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Initial Operational Capability (IOC): 26 March 2013
Maiden Flight: 28 September 2007
Total Production: 60
Unitary Cost: USD$140 million
Also Known As: UP-1 and XP-1
Origin: Japan
Corporations: Kawasaki Heavy Industries (KHI)
Parent System: P-1
Initial Operational Capability (IOC): 26 March 2013
Maiden Flight: 28 September 2007
Total Production: 60
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Description: The Japan Maritime Self-Defense Force (JMSDF) P-1 is a maritime patrol aircraft developed by Kawasaki Heavy Industries (KHI) as the replacement for the P-3C Orion. The P-1 aircraft purpose is to conduct long-range surveillance flights across the waters surrounding Japan. It is powered by four F7-IHI-10 turbofan engines each developing 5,400 kg of thrust and allowing a top speed of 450 knots. With a maximum take-off weight of 80,000 kg the P-1 is operated by a crew of 11-man plus two pilots. The sensor package includes a Toshiba HPS-106 360-degree active electronically scanned array (AESA) radar to detect surface targets, a tail-mounted magnetic anomaly detector (MAD) and deployable sonobouys to detect submerged submarines. The weapon options include mines, torpedoes, depth charges, bombs and Harpoon anti-ship missiles carried inside the internal weapons bay or attached to eight external hard points. The P-1 aircraft entered service with the JMSDF in 2013 with 60 airplanes expected to be produced until 2020-2025.

P-1 Specifications

Crew: 13
External Stations: 8
Number of Engines: 4
Height: 12.1 meter (39.7 foot)
Length: 38 meter (125 foot)
Wingspan: 35.4 meter (116 foot)
Ceiling: 44,200 foot (13,472 meter)
Max Range: 8,000 kilometer (4,320 nautical mile)
Cruise Speed: 833 kph (518 mph)
Top Speed at High Altitude: 996 kph (538 KTAS)
Max Takeoff Thrust: 21,600 kilogram (47,619 pound)
Max Takeoff Weight: 80,000 kilogram (176,367 pound)
Payload: 9,000 kilogram (19,841 pound)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

Operators & Related Equipment


Grand Total 601
Defensive Weapons
Mark 46x8
Type 97x8
Offensive Weapons
AGM-84D Harpoonx8
Propulsion Systems
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