Military Factory logo
Icon of F-15 Eagle military combat fighter aircraft
Icon of Abrams Main Battle Tank
Icon of AK-47 assault rifle
Icon of navy warships
Icon of a dollar sign
Icon of military officer saluting
National Flag Graphic

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.

Detailing the development and operational history of the Kawasaki P-1 Maritime Patrol Aircraft / Anti-Ship Platform.  Entry last updated on 1/15/2019. Authored by Staff Writer. Content ©
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.

Program Updates

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.

May 2018 - The Japanese Navy has, on hand, about fifteen combat-ready P-1 aircraft. Eventual fleet size has yet to be determined by the service.

January 2019 - The Japan Ministry of Defense has earmarked funds for five upcoming fiscal years to procure up to twelve KHI P-1 maritime patrol platforms.


YEAR: 2013
STATUS: Active, In-Service
MANUFACTURER(S): Kawasaki Heavy Industries (KHI) - Japan
CREW: 13
LENGTH: 124.67 ft (38 m)
WIDTH: 116.47 ft (35.5 m)
HEIGHT: 39.37 ft (12 m)
MTOW: 176,370 lb (80,000 kg)
POWER: 4 x IHI Corporation XF7-10 turbofan engines developing 13,500 lb of thrust each.
SPEED: 621 mph (1,000 kph; 540 kts)
CEILING: 44,291 feet (13,500 m; 8.39 miles)
RANGE: 4,971 miles (8,000 km; 4,320 nm)

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.
Graphical image of an aircraft air-to-surface missile
Graphical image of an aircraft anti-ship missile
Graphical image of an aircraft aerial torpedo
Variants / Models

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

Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

Image of collection of graph types

Relative Maximum Speed
Hi: 750mph
Lo: 375mph
This entry's maximum listed speed (621mph).

Graph average of 562.5 miles-per-hour.
City-to-City Ranges
Graph showcases the Kawasaki P-1's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production (33)
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.

Altitude Visualization
Small airplane graphic
Supported Roles
Ground Attack
Aerial Tanker
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Commitments / Honors
Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental x-plane aircraft
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.

Site Disclaimer  |  Privacy Policy  |  Cookies  |  Site Map Site content ©2003-, All Rights Reserved.

The "Military Factory" name and logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, and, the World Directory of Modern Military Aircraft.

Facebook Logo YouTube Logo