Boeing P-8 Poseidon

The Boeing P-8 Poseidon is an American maritime patrol aircraft developed and produced by Boeing Defence, Space & Security, modified from the 737-800ERX.

It was developed for the United States Navy.

The P-8 operates in the anti-submarine warfare, anti-surface warfare, and shipping interdiction roles.

It is armed with torpedoes, Harpoon anti-ship missiles, and other weapons, can drop and monitor sonobuoys, and can operate in conjunction with other assets, including the Northrop Grumman MQ-4C Triton maritime surveillance unmanned aerial vehicle.

The P-8 is operated by the United States Navy, the Indian Navy, the Royal Australian Air Force, and the UK’s Royal Air Force.

It has also been ordered by the Royal Norwegian Air Force, the Royal New Zealand Air Force, and the Republic of Korea Navy.


P-8A Poseidon

Production variant developed for the United States Navy.

P-8I Neptune

Export variant for the Indian Navy with a CAE Inc AN/ASQ-508A Magnetic Anomaly Detector (MAD) and a Griffon Corporation Telephonics APS-143C(V)3 multi mode aft radar added.

Poseidon MRA1

Royal Air Force designation for the P-8A.


An Airborne Ground Surveillance variant proposed to the USAF in 2010 as replacement to the E-8 Joint STARS fleet; equipped with a pod-mounted, active electronically scanned array (AESA) radar.





19,800 lb (9,000 kg)


129 ft 5 in (39.47 m)


123 ft 6 in (37.64 m)


42 ft 1 in (12.83 m)

Empty weight

138,300 lb (62,730 kg)

Max take-off weight

189,200 lb (85,820 kg)


2 × CFM56-7B27A turbofans, 27,300 lbf (121 kN) thrust each


Maximum speed

564 mph (907 km/h, 490 kn)

Cruise speed

509 mph (815 km/h, 440 kn)

Combat range

1,381 mi (2,222 km, 1,200 nmi) ; 4 hours on station

(for anti-submarine warfare mission)

Ferry range

5,200 mi (8,300 km, 4,500 nmi)

Service ceiling

41,000 ft (12,496 m)



11 total

Internal bay with 5 hardpoints and 6 external hard points for a variety of conventional weapons, e.g. AGM-84H/K SLAM-ER, AGM-84 Harpoon, Mark 54 torpedo, mines, depth charges, and the High Altitude Anti-Submarine Warfare Weapon system


Raytheon APY-10

Multi-mission surface search radar


Electronic Support Measures Suite


Advanced Airborne Sensor.

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