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AIM-174
Side-profile of the SM-6; the AIM-174 is visually similar, though it lacks the rear booster pack [1]
TypeVery long-range air-to-air missile
Place of originUnited States
Service history
In service2021 (2021)(?)–present [2]
Used by United States Navy
Production history
Manufacturer Raytheon
VariantsAIM-174B
Specifications
Mass1,900 lb (860 kg) [3]
Wingspan61.8 in (1.57 m)
Warhead High-explosive blast-fragmentation
Warhead weight140 lb (64 kg) [4]
Detonation
mechanism
Radar and contact/impact/proximity fuze

Engine Solid-fuel rocket motor
Operational
range
At least 130 nmi (150 mi; 240 km) [5]
Maximum speed Mach 3.5 (2,664.2 mph; 4,287.7 km/h; 1.2 km/s) [6]
Guidance
system
Inertial guidance, terminal active and semi-active radar homing
Launch
platform
Boeing F/A-18E/F Super Hornet

The AIM-174 is a very long-range air-to-air missile developed by U.S. defense contractor Raytheon and utilized by the United States Navy (USN). The AIM-174 is a derivative of the RIM-174 Standard ERAM (Standard Missile-6 or SM-6) surface-to-air missile, with the USN describing the AIM-174 as the "Air-Launched Configuration" [7] of the SM-6. The AIM-174's existence was first confirmed to the public in July 2024 at RIMPAC 2024. While details regarding the AIM-174's range are unconfirmed, certain surface-launched SM-6 variants are capable of 250 nmi (290 mi; 460 km) launches; With the benefit of being launched already at-speed and at-altitude (where the air is thinner and thus easier to fly through), the AIM-174's range may extend to several hundred miles [8], though the USN has confirmed a range of 130 nmi (150 mi; 240 km). [9] [10] The operational variant, the AIM-174B, is only known to be capable of being carried and launched by the Boeing F/A-18E/F Super Hornet as of July 2024. [11] Since the retirement of the AIM-54 Phoenix BVRAAM, the USN has not fielded a dedicated long-range air-to-air missile. [12] The AIM-174's existence had been speculated about since at least 2021, with photos of SM-6s carried by Super Hornets making their way online; [13] The publication Naval News reports that they were following developments of an "air-launched SM-6" since 2015, [14] while The Aviationist reports that photos of Super Hornets carrying “an SM-6 variant” appeared in 2018. [15]

Little is known about the missile as it is speculated that it was developed as a special access program, similar to the AIM-260 Joint Advanced Tactical Missile (of which little is officially known). [16] As the AIM-260 is similarly a very long-range air-to-air missile, it is unclear what the relationship between the AIM-174 and -260 will be, as the USN has co-operated with the United States Air Force (USAF) in developing the latter for use by both services. Both missiles are designed to counter the extreme-range air-to-air missiles being fielded or under-development by the United States’ peer and near-peer potential adversaries, such as the Russian Vympel R-37M or the Chinese PL-21. [17] Both the AIM-174 and -260 are separate from the currently under-development Long-Range Engagement Weapon of the USAF.

Design

As of 2024, little is known of the weapon. However, photos reveal that the AIM-174B weighs around 1900 lbs (861 kg), about five times the weight of the AIM-120 AMRAAM. [18]

See also






References

  1. ^ Johnston, Carter (2024-06-04). "Air-launched SM-6 Spotted Again on F/A-18 Super Hornet". Naval News. Retrieved 2024-07-07. In 2021, a VX-31 F/A-18F was spotted carrying an inert SM-6 without its 21-inch MK72 first-stage booster...
  2. ^ Johnston, Carter (2024-06-04). "Air-launched SM-6 Spotted Again on F/A-18 Super Hornet". Naval News. Retrieved 2024-07-07.
  3. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. According to the stencils visible on the photos of the missile... the AIM-174B... weighs 1,890 lb ± 14 lb (857 kg ± 6 kg).
  4. ^ Ho, Ben (10 March 2016). "Fixing the US Navy's Anti-Surface Warfare Shortfall". The Diplomat. Archived from the original on 25 November 2023.
  5. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. Capable of reaching speeds up to Mach 3.5, the missile has an official range of 130 nautical miles.
  6. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. Capable of reaching speeds up to Mach 3.5, the missile has an official range of 130 nautical miles.
  7. ^ Johnston, Carter (2024-07-05). "U.S. Navy Confirms SM-6 Air Launched Configuration is Operationally Deployed". Naval News. Retrieved 2024-07-07. The SM-6 Air Launched Configuration (ALC) was developed as part of the SM-6 family of missiles and is operationally deployed in the Navy today.
  8. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. The SM-6 uses the airframe of the SM-2ER Block IV (RIM-156A) missile, upgraded with an active radar homing seeker derived from the AIM-120 AMRAAM air-to-air missile. This missile can reach speeds of up to Mach 3.5 and has a maximum range of 200 nautical miles. To that respect, it's not clear what the maximum range of the air-launched version could be: despite the lack of a booster, launching it at high speed and altitude would result in significantly greater range compared to the surface-launched variant.
  9. ^ Johnston, Carter (2024-07-05). "U.S. Navy Confirms SM-6 Air Launched Configuration is Operationally Deployed". Naval News. Retrieved 2024-07-07.
  10. ^ West, Lisa (2024-07-06). "U.S. Navy Reveals Longest-Range Air-to-Air Missile at RIMPAC". UK Defence Journal. Retrieved 2024-07-07.
  11. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07.
  12. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. In essence, this new missile fills the gap left by the retirement of the AIM-54 Phoenix. The AIM-54 was a long-range air-to-air missile used by the U.S. Navy's F-14 Tomcat and retired in 2004 alongside the F-14. Known for its impressive range of over 100 nautical miles and multiple-target engagement capability, the AIM-54 left a significant void in long-range engagement capabilities.
  13. ^ Johnston, Carter (2024-06-04). "Air-launched SM-6 Spotted Again on F/A-18 Super Hornet". Naval News. Retrieved 2024-07-07.
  14. ^ Johnston, Carter (2024-07-05). "U.S. Navy Confirms SM-6 Air Launched Configuration is Operationally Deployed". Naval News. Retrieved 2024-07-07. ...Naval News is following a possible lead that points to a potential air-launched SM-6 dating back as far as 2015.
  15. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. Although the news broke in 2021 only, the first sighting of a Super Hornet carrying an SM-6 variant occurred in 2018 when an F/A-18F from VX-31 was photographed with the same missile under its wing, indicating that the U.S. Navy has been developing an air-launched version of the SM-6/RIM-174 for at least six years.
  16. ^ Johnston, Carter (2024-07-05). "U.S. Navy Confirms SM-6 Air Launched Configuration is Operationally Deployed". Naval News. Retrieved 2024-07-07. The AIM-260 remains secretive about procurement and delivery given its status as a Special Access Program (SAP). It is likely that the effort to integrate SM-6 is also a SAP…
  17. ^ Johnston, Carter (2024-07-05). "U.S. Navy Confirms SM-6 Air Launched Configuration is Operationally Deployed". Naval News. Retrieved 2024-07-07. …the U.S. Navy joins allies and adversaries in fielding an extra long range beyond-visual-range air-to-air missile (BVRAAM). Examples include Europe's Meteor, Russia's R-37M (AA-13 "Axehead"), China's PL-15 (CH-AA-10 "Abaddon") and PL-21 (CH-AA-X-12).
  18. ^ Cenciotti, David (2024-07-03). "First Images Emerge Of U.S. Navy Super Hornet Carrying Two Air-Launched SM-6 Missiles". The Aviationist. Retrieved 2024-07-07. According to the stencils visible on the photos of the missile carried by the CVW-2 Super Hornets taking part in RIMPAC, the AIM-174B (designated NAIM-174B, with the N prefix indicating modifications for special tests where reconversion to the original configuration is neither planned nor feasible at reasonable costs) weighs 1,890 lb ± 14 lb (857 kg ± 6 kg).