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P-8 Poseidon: The U.S. Navy’s Next ‘Missile Truck’?

P-8 Poseidon

The United States military is continuing with its efforts to improve its capabilities when it comes to operating in contested environments that appear likely to increasingly characterize modern battlefields. The military’s aviation community has not been exempt from these efforts, with continued improvements in both Russian and Chinese air defense networks promising to present a real challenge.

For the Air Force, efforts to overcome this challenge have included its fleet of bombers and long-range strike aircraft, with the service considering the future of its bomber fleet as it makes plans to purchase an ever-increasing number of B-21 Raider bombers. Efforts to develop future capabilities, however, have to be balanced with efforts to develop accessible and cost-effective solutions for improving near-term capabilities. For the Air Force, one possible option for doing just that includes adopting and modifying a current naval aircraft platform for use as a long-range strike aircraft.

The aircraft in question is the Navy’s P-8 Poseidon maritime patrol aircraft. Developed by Boeing, the P-8 has proven to be a versatile and successful platform capable of undertaking long-range and extended-duration reconnaissance and surveillance operations as well as naval strike missions. In addition, the Poseidon is an important tool for the Navy when it comes to anti-submarine warfare (ASW) operations.

As written about on The Warzone, the P-8 Poseidon is a candidate for adoption by the Air Force and conversion into a long-range strike aircraft. The recommendation offered in the article argues that Air Force variants of the P-8 – which the article labels as “RB-8” aircraft – are stripped of their maritime patrol and anti-submarine warfare equipment, excluding any relevant communication and defensive countermeasure capabilities and any electronic support measures. Conversion of P-8s into RB-8s would also see the installation of a new modern active electronically scanned array (AESA) radar in the aircraft’s nose.

Dropping the P-8’s maritime patrol and anti-submarine warfare equipment would free up converted RB-8s to function as long-range missile delivery platforms. Current P-8s are outfitted with stations for carrying 2,500 pounds worth of weapons. P-8s use these stations to mount a range of weapons such as AGM-84 Harpoons and Standoff Land Attack Missile Expanded Response (SLAM-ER) missiles, and the RB-8s could supplement this arsenal by mounting the Joint Air-Surface Standoff Missile (JASSM). The RB-8 could also make use of the five hardpoints inside of the P-8’s weapons bay, each of which are capable of mounting 1,000 pounds of munitions. These could be used to hold a number of weapons such as the GBU-53B Stormbreaker guided bombs.

Conversion of P-8s into these RB-8 missile platforms would provide the Air Force with a versatile strike aircraft capable of engaging a wide range of targets on land and at sea while doing so more efficiently than fighter aircraft. In addition, this conversion would allow the Navy’s P-8s to focus primarily on maritime patrol and anti-submarine warfare operations, both of which require a large commitment of aircraft.

In addition, given that the Air Force would be making use of the Navy’s preexisting development of the P-8 platform, costs of the new aircraft would be relatively low. The conversion of the P-8s into RB-8s would likely be a relatively straightforward and quick process. This would provide the Air Force with a short-term boost in its long-range strike capacity without detracting from its ability to purchase higher-end platforms such as the B-21 in the future, and would give the service a valuable high-low mix of bomber and strike-aircraft moving forward.

Written By

Eli Fuhrman is an Assistant Researcher in Korean Studies at the Center for the National Interest and a recent graduate of Georgetown University’s Security Studies Program, where he focusedd on East Asian security issues and U.S. foreign and defense policy in the region.



  1. Roy Runyon

    July 24, 2021 at 11:51 am

    Why convert P8s needed for ASW and anti-shipping roles? There are a number of off-the-shelf commercial airliner platforms adaptable to the role of “missile truck.” This opinion piece doesn’t consider the threat environment and the systems (e.g. ECM and IR defenses) and support (e.g. AEW, fighter and electronic combat escort) necessary for aircraft survival.

  2. Bob

    July 24, 2021 at 12:53 pm

    The P-8 uses a modified Boeing 737-800 ERX as its base, why try to get the P-8 from the Navy? just buy the 737’s straight from Boeing and convert it to your specific specifications using the templates for the P-8 construction. The Navy is converting from P-3’s to the P-8 and so is Australia and New Zealand and India and other prospective operators.

  3. TrustbutVerify

    July 24, 2021 at 1:39 pm

    There are a bunch of these jets in maintenance stage. This is self-explanatory as it defines an airframe as being in for scheduled upkeep including A, B, C and D checks. There were 2,505 examples in for scheduled maintenance of some kind. The Airbus A320 had the most with 363 while the Boeing 737-800 was a close runner up with 228 examples in this category.

    The final classification includes aircraft that are in long- or short-term storage. This section was by far the largest because 18,507 airframes fell into the category, largely due to the impact of the COVID-19 pandemic. The Airbus A320 and Boeing 737-800 dominate the line-up with 2,429 and 2,025, respectively. This is because these two types lead the global fleet in terms of size.

    So around 2300 to 2400 737-800 airframes that could be upgraded that at just sitting around – instead of gutting ASW P-8s already in use and very much needed.

  4. cbvand

    July 24, 2021 at 2:30 pm

    Some lick spittle AF Colonel will be appointed project manager and then approve every tweak and gratuitous change ego driven AF Generals demand. Seems the generals only think an aircraft is ‘worthy’ if the cost is excessive.

  5. Mike Smyth

    July 24, 2021 at 3:44 pm

    An RB-8 would be a new aircraft, built on the P-8 production line. The mission equipment is added post-rollout in a mission-system building. Instead of adding Navy equipment, the Air Force mission equipment would be added. No gutting required.

    The P-8A airframe is much stronger than a 737-800. Adding wing weapons or a bomb bay to a 737-800 is not possible without major modifications, which would be cost prohbitive.

  6. John Galt

    July 24, 2021 at 6:39 pm

    Great idea and Makes sence
    Which is why it is unlikely to happen. The AF needs to waste billions, time and get nothing, than admit an off the shelf plane used by the Navy.

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