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Kawasaki P-1

Japan (2013)

Detailing the development and operational history of the Kawasaki P-1 Maritime Patrol Aircraft / Anti-Ship Platform.

 Entry last updated on 6/21/2017; Authored by Staff Writer; Content ©

  Kawasaki P-1  
Picture of Kawasaki P-1 Maritime Patrol Aircraft / Anti-Ship Platform
Picture of Kawasaki P-1 Maritime Patrol Aircraft / Anti-Ship Platform

The Kawasaki P-1 has been developed as an in-house, next-generation Japanese Maritime Self-Defense Force maritime patrol platform.

Maritime patrol remains a hugely important facet of defense, particularly for island nations such as Japan and especially with the growing power of China in the region. To date, the Japan Maritime Self-Defense Force (JMSDF) has relied on the American-originated Lockheed P-3 "Orion" (P-3C models) system for the role though this offering was introduced back in the early 1960s. In search of a more modern platform - and with no real viable options available from overseas suppliers - Japanese authorities looked to an indigenous offering which has become the Kawasaki P-1. First flight of the line (XP-1) was recorded on September 28th, 2007 and development remains ongoing as of this writing (February 2014). The first two units were passed on to the JMSDF in March of 2013. Testing revealed several issues of note which have hampered larger-scale acceptance and usage to date.

As its core, the P-1 is a four-engined, jet-powered maritime reconnaissance platform outfitted with the latest in information tracking/gathering/interpretation. On the whole, the design is given a highly conventional arrangement with a forward-set cockpit, streamlined tubular fuselage and single-finned tail unit (with applicable horizontal tailplanes). The main wing assemblies are low-mounted monoplanes featuring sweep and each wing is given a pair of underslung nacelles housing 2 x IHI Corporation XF7-10 series turbofans.
For the maritime patrolling requirement, the P-1 will be outfitted with an all-modern AESA (Active Electronically-Scanned Array) radar system (Toshiba HPS-106). Coupled with several onboard detection systems, the P-1 will be able to track and identify various on-water and underwater threats including marauding enemy submarines, relaying this information to weapon operators, accompanying attack units or observers elsewhere. From there, the P-1 will also be granted support for its own ordnance delivery capabilities to engage targets. Indeed, a 20,000lb ordnance-hauling capability will be available in the form of torpedoes, naval mines, depth charges, anti-ship and air-to-surface missiles. An Electronic CounterMeasures (ECM) suite will provide self-protection from incoming threats facing the aircraft. A typical crew for the P-1 platform will include two pilots and up to eleven mission specialists.

The installed IHI XF7-10 series turbofans are rated at 13,500lb of thrust each allowing for a maximum speed of 620 miles per hour with a cruising speed closer to 515 miles per hour. Range is listed at 45,000 miles with a service ceiling of 44,200 feet.

Since 2013, procurement has netted some 10 total units for testing and evaluation. Once the aircraft passes all requisite phases, it will become a fixed component of the Japanese defense umbrella to coincide with several incoming next-generation designs of note.

July 2015 - It was announced that the P-1 had made its public debut, this at the Royal International Air Tattoo (RAF Fairford) in England. The Royal Air Force has expressed some interest in the P-1 series to fulfill its own maritime patrol needs. These would succeed the Nimrod line in the same role.

April 2017 - It was revealed that Kawasaki may target the export market with its P-1 aircraft.

June 2017 - The Kawasaki P-1 has made its public debut at the 2017 Paris Air Show.
Kawasaki P-1 Specifications
National Flag Graphic
Year: 2013
Type: Maritime Patrol Aircraft / Anti-Ship Platform
Manufacturer(s): Kawasaki Heavy Industries (KHI) - Japan
Production: 33
Supported Mission Types
Ground Attack
Close-Air Support
Airborne Early Warning
Electronic Warfare
Aerial Tanker
Passenger Industry
VIP Travel
Business Travel
Special Forces
Crew: 13
Length: 124.67 ft (38 m)
Width: 116.47 ft (35.50 m)
Height: 39.37 ft (12.00 m)
MTOW: 176,370 lb (80,000 kg)

Installed Power
4 x IHI Corporation XF7-10 turbofan engines developing 13,500 lb of thrust each.

Standard Day Performance
Maximum Speed: 621 mph (1,000 kph; 540 kts)
Maximum Range: 4,971 mi (8,000 km; 4,320 nm)
Service Ceiling: 44,291 ft (13,500 m; 8.39 mi)

Mission equipment as needed to identify, track and engage surface and submarine threats.

AGM-84 Harpoon anti-ship missiles, ASM-1C anti-ship missiles, AGM-65 Maverick air-to-surface missiles, MK 46, Type 97 and G-RX-5 torpedoes, naval mines, depth charges and sonobouys as needed.

Operators List

Series Model Variants
• XP-1 - Prototype Designation
• P-1 Base Series Designation

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