L-SAM vs RIM-7 Sea Sparrow

Agency for Defense Development (system) Hanwha (anti-ballistic missile) LIG Nex1 (anti-aircraft missile)^[source]

Block 1: 2019–2024 Block 2: 2025–2028 (planned)^[source]

Hanwha Aerospace LIG Defense & Aerospace^[source]

Raytheon and General Dynamics^[source]

2025 (planned)^[source]

Dual- pulsed rocket motor^[source]

Hercules MK-58 solid-propellant rocket motor^[source]

Gelled nitromethane propellant^[source]

Block 1: 60 km (37 mi) Block 2 HAI: 180 km (110 mi)^[source]

Imaging infra-red seeker^[source]

Semi-active radar homing^[source]

South Korean long range surface-to-air and anti-ballistic missile system^[source]

The L-SAM system is expected to use two types of interceptors: one for anti-air meant to target general air breathing threats such as aircraft or cruise missiles and the other for anti-ballistic . The anti-ballistic missile (ABM) consists of total of a three stages and uses a hit-to-kill system that intercepts targets with a kill vehicle that integrates an imaging infra-red (IIR) seeker and a divert attitude control system (DACS), and can intercept missiles approaching at an altitude of 50–60 kilometers (160,000–200,000 ft). L-SAM demonstrated its intercept capability by succeeding three out of a total of four missile interception tests between November 2022 and June 2023.^[source]L-SAM · Development and design; only the objects and conditions stated in this passage

Operating frequency : S-band (2–4 GHz)^[source]L-SAM · Development and design / Long-range multifunction radar (L-MFR) / Transmit/receive module; only the objects and conditions stated in this passage

On 25 April 2023, the 153rd Defense Acquisition Program Promotion Committee deliberated and approved on a plan to develop a new missile defense system with a higher intercepting altitude than the existing L-SAM with a budget of 2.71 trillion won by 2027. The new missile system, named L-SAM 2, includes high-altitude interceptor (HAI) missiles and glide phase interceptor (GPI) missiles, and is estimated to have an interception altitude of 180 km.^[source]L-SAM · Improvements / Block 2; only the objects and conditions stated in this passage

US Navy doctrine stressed long-range air cover to counter both high-speed aircraft and missiles, and development of newer short range defenses had been largely ignored. While the Navy was developing expensive long-range fighters like the Douglas F6D Missileer , most ships were left with older weapons, typically Bofors 40 mm guns or Oerlikon 20 mm cannons . By the early 1960s their capability against modern aircraft and missiles was limited; a lack of fast-reacting mounts, gunsight radars of limited accuracy, and long settling times for the fire control systems all meant that the guns were unlikely to be able to respond effectively against high-speed aircraft.^[source]RIM-7 Sea Sparrow · History / Background; only the objects and conditions stated in this passage

The Sea Sparrow was far from an ideal weapon. Its rocket engine was designed with the assumption that it would be launched at high speed from an aircraft, and therefore is optimized for a long cruise at relatively low power. In the surface-to-air role one would rather have very high acceleration in order to allow it to intercept sea-skimming targets as soon as possible. The power profile is also suitable for cruising in thin air at high altitudes, but at low altitudes it does not produce enough power to overcome drag and dramatically decreases range; some estimates indicate that the Sea Sparrow may be effective only to 10 kilometres (6.2 mi), about one quarter of the range of the air-launched Sparrow. An engine of much higher power would greatly improve performance, in spite of a shorter burning time.^[source]RIM-7 Sea Sparrow · History / Basic point defense missile system (BPDMS); only the objects and conditions stated in this passage

IBPDMS emerged as the RIM-7H, which was essentially the RIM-7E with the mid-mounted wings modified to be able to fold. This was done in a fashion similar to carrier-based aircraft; the wings were hinged at a point about 50% along the span, with the outer portions rotated back toward the body of the missile. This allowed them to be stored in tighter container tubes in the new Mark 29 missile launcher , and flip open automatically when they were released from the tube. The other major change was to allow the seeker to work with a variety of illumination radars, including those being used with existing European missile systems.^[source]RIM-7 Sea Sparrow · History / Improved basic point defense missile system (IBPDMS); only the objects and conditions stated in this passage

Production of the RIM-7H began in 1973 as NATO Sea Sparrow Missile System (NSSMS) Block I. For the US Navy's use the new Mark 95 illuminator system was also introduced, similar to the original Mark 115 but with automatic guidance that could be used in any weather. The Mark 95 formed the basis of the highly automated Mark 91 fire control system.^[source]RIM-7 Sea Sparrow · History / Improved basic point defense missile system (IBPDMS); only the objects and conditions stated in this passage

In 1972 Raytheon started a Sparrow upgrade program to arm the upcoming F-15 Eagle , producing the AIM-7F. The F model replaced the older analog guidance system with a solid state version that could operate with the F-15's new pulse-doppler radar. The guidance system was much smaller, which allowed the warhead to be moved from its former rear-mounted position to one in front of the mid-mounted wings, and increased in weight to 86 lb (39 kg). Moving it forward also allowed the rocket engine to be enlarged, so it was replaced by a new dual-thrust engine that quickly accelerated the missile to higher speeds, and then settled to a lower thrust for cruise. The new missiles were quickly adapted for the naval role in a fashion similar to the RIM-7H, producing the RIM-7F. The new missile used the lower model designation in spite of the newer technology than the H model.^[source]RIM-7 Sea Sparrow · History / Missile upgrades; only the objects and conditions stated in this passage

Another major upgrade to the AIM-7 followed, the AIM-7M. The M included a new monopulse radar seeker that allowed it to be shot downward from a higher-altitude aircraft at a target otherwise masked by the ground. The new model also included a completely computerized guidance system that could be updated in the field, as well as further reducing weight for yet another warhead upgrade. The computerized guidance system also included a simple autopilot that allowed the missile to continue flying toward the last known target location even with the loss of a signal, allowing the launch platform to break lock for short periods while the missile was in flight. All of these modifications also improved performance against low-altitude sea-skimming targets as well. The M model entered US operational service in 1983.^[source]RIM-7 Sea Sparrow · History / Missile upgrades; only the objects and conditions stated in this passage

The original RIM-7E was capable to fly at about Mach 2+, between 30 and 15,000 metres (98 and 49,213 ft), with a range of 15–22 kilometres (8.1–11.9 nmi) (depending on the target height). The RIM-7F enhanced the performances, but also the proximity fuse versus low flying targets, as the minimum altitude was reduced to 15 metres (49 ft) or less. The RIM-7M was able to strike targets at an altitude of 8 metres (26 ft), providing some capability against sea-skimming missiles such the Exocet .^[source]RIM-7 Sea Sparrow · History / Missile upgrades; only the objects and conditions stated in this passage

Taiwan operates ground based Sea Sparrows as part of the Skyguard SHORAD system. Five hundred missiles entered service in 1991 and are deployed on trailers with four box launchers. In 2012 they were temporarily withdrawn from service following a pair of missile failures during testing as well as the failure of a related AIM-7 in the same exercises.^[source]RIM-7 Sea Sparrow · History / Ground-launched Sea Sparrow; only the objects and conditions stated in this passage

In January 2023, the United States announced it would transfer Sea Sparrow missiles to Ukraine as part of a military aid package during the 2022 Russian invasion of Ukraine . The Sea Sparrows are fired from Soviet-era 9K37 Buk missile launchers modified by Ukraine to accept them, to counter attacks from cruise missiles and drones. The system, dubbed " FrankenSAM ", utilizes three different air defense missiles—RIM-7 Sea Sparrow missiles, AIM-9 Sidewinder missiles, plus Patriot missiles and Patriot sensor elements —in combination air defense systems based on older Ukrainian tracked vehicles and the Buk missile system. FrankenSAM was confirmed to be in use in December 2023, and was first used successfully in combat to bring down a Russian Shahed drone on 17 January 2024 from 9 km distance.^[source]RIM-7 Sea Sparrow · History / Ground-launched Sea Sparrow; only the objects and conditions stated in this passage

The ESSM takes the existing guidance section from the RIM-7P and fits it to an entirely new rear-section. The new missile is 10 inches (25 cm) in diameter instead of the previous 8 inches, which allows for a much more powerful motor. It also eliminates the mid-mounted wings entirely, replacing them with long fins similar to those on the Standard missile (and practically every other Navy missile since the 1950s) and moves guidance control to the rear fins. The tail-fin based steering of the ESSM uses up more energy but offers considerably higher maneuverability while the engine is still firing.^[source]RIM-7 Sea Sparrow · History / Evolved Sea Sparrow missile (ESSM); only the objects and conditions stated in this passage

$165,400^[source]

Annular blast fragmentation warhead, 90 lb (41 kg)^[source]

Proximity fuzed , expanding rod , with a 27 ft (8.2 m) kill radius^[source]

Ship, Buk-M1 (modified for use in Ukraine)^[source]