Ram (rocket)

Last updated
RAM
Ordnancemen load rockets on a Vought F4U-4B of VF-64 aboard USS Philippine Sea (CV-47) on 21 May 1951 (80-G-439903).jpg
RAM (lower) and HVAR rockets mounted on a F4U Corsair
Type Air-to-surface rocket
Place of originUnited States
Service history
In service1950–54
Used by United States Navy
Production history
Manufacturer Naval Ordnance Test Station
Produced1944–55
Specifications
Diameter6.5 inches (165 mm)
Warhead Composition B, shaped charge
Warhead weight19.6 pounds (8.9 kg) [1]
Blast yield24 inches (610 mm) penetration

EngineSolid-fuel rocket
Operational
range
3 miles (4.8 km)
Guidance
system
None

The RAM, also known as the 6.5-Inch Anti-Tank Aircraft Rocket or ATAR, was an air-to-ground rocket used by the United States Navy during the Korean War. Developed rapidly, the rocket proved successful but was phased out shortly after the end of the conflict.

Contents

Design and development

In 1950, the outbreak of the Korean War resulted in the United States Navy urgently requiring an aircraft-launched rocket that would be effective against enemy tanks, [2] as the existing High Velocity Aircraft Rocket (HVAR) high-velocity aircraft rocket was expected to be ineffective against the armor of IS-3 heavy tanks. [3]

The development of an improved rocket was undertaken with remarkable speed; a directive to start work on the project was issued on July 6, 1950, and the first rockets were delivered to the war zone on July 29. [4] Over the course of those 23 days, the Naval Air Weapons Station China Lake, located in China Lake, California, developed an improved version of the HVAR, with a new, 6.5 inches (165 mm) shaped-charge warhead replacing the earlier weapon's 5 inches (127 mm) charge. [2] The fuse for the shaped charge, developed with the same haste as the rocket itself, was considered dangerous, but proved to be safe enough in service; it was described as being "[not] as dangerous as the Russian tanks" it was designed to destroy. [5] Claimed as being superior in armor penetration to the conventional 3.5 inch bazooka's warhead, [4] which could penetrate 11 inches (279 mm) of armor, [6] the RAM's warhead was capable of penetrating 24 inches (610 mm) of armor plate. [7]

Operational history

Officially designated the 6.5-Inch Anti-Tank Aircraft Rocket (ATAR), and commonly known in service as "RAM", the new rocket was rushed to the Korean front, [2] being used in combat for the first time on August 16, 1950. [4] Despite the haste with which the weapon had been developed, the very first shipment included a full set of documentation and firing tables for the use of the rocket. [8] The first 600 rockets were constructed by hand, [3] but a production line was rapidly set up. [4]

In operational service, the RAM was fitted to the F-51 Mustang, F-80 Shooting Star and F4U Corsair aircraft, [9] and it proved to be moderately effective, [2] with the first 150 rockets fired scoring "at least" eight confirmed kills of North Korean tanks. [9] However, the rocket proved to be unpopular with pilots, due to the close approach to the target required for accurate firing execution; the HVAR offered a longer range, while napalm was considered more effective if the range had to be closed. [10] With the end of the war in 1953, the ATAR was withdrawn from service, [10] improved versions of the HVAR having become available as an alternative. [2]

See also

Related Research Articles

<span class="mw-page-title-main">Rocket-propelled grenade</span> Shoulder-launched anti-tank weapon

A rocket-propelled grenade (RPG) is a shoulder-fired missile weapon that launches rockets equipped with an explosive warhead. Most RPGs can be carried by an individual soldier, and are frequently used as anti-tank weapons. These warheads are affixed to a rocket motor which propels the RPG towards the target and they are stabilized in flight with fins. Some types of RPG are reloadable with new rocket-propelled grenades, while others are single-use. RPGs are generally loaded from the front.

<span class="mw-page-title-main">Bazooka</span> Man-portable recoilless rocket antitank weapon

Bazooka is the common name for a man-portable recoilless anti-tank rocket launcher weapon, widely deployed by the United States Army, especially during World War II. Also referred to as the "stovepipe", the innovative bazooka was among the first generation of rocket-propelled anti-tank weapons used in infantry combat. Featuring a solid-propellant rocket for propulsion, it allowed for high-explosive anti-tank (HEAT) shaped charge warheads to be delivered against armored vehicles, machine gun nests, and fortified bunkers at ranges beyond that of a standard thrown grenade or mine. The universally applied nickname arose from the M1 variant's vague resemblance to the musical instrument called a bazooka invented and popularized by 1930s American comedian Bob Burns.

<span class="mw-page-title-main">Anti-tank warfare</span> Science and Technology tactics based around countering and immobilizing tanks

Anti-tank warfare originated from the need to develop technology and tactics to destroy tanks during World War I. Since the Allies deployed the first tanks in 1916, the German Empire developed the first anti-tank weapons. The first developed anti-tank weapon was a scaled-up bolt-action rifle, the Mauser 1918 T-Gewehr, that fired a 13.2 mm cartridge with a solid bullet that could penetrate the thin armor of tanks at that time and destroy the engine or ricochet inside, killing occupants. Because tanks represent an enemy's strong force projection on land, military strategists have incorporated anti-tank warfare into the doctrine of nearly every combat service since. The most predominant anti-tank weapons at the start of World War II in 1939 included the tank-mounted gun, anti-tank guns and anti-tank grenades used by the infantry, and ground-attack aircraft.

<span class="mw-page-title-main">Shoulder-fired missile</span> Shoulder mounted recoilless launcher system for shells, unguided or guided rockets (missiles), etc

Shoulder-fired missile, shoulder-launched missile or man-portable missile, among other variants, are common slang-terms to describe high-caliber shoulder-mounted weapons systems – that is: weapons firing large heavy projectiles ("missiles"), typically using the backblast principle, which are small enough to be carried by a single person and fired while held on one's shoulder. The word "missile" in this context is used in its original broad sense of a heavy projectile, and encompasses all shells and rockets, guided or unguided. A more formal variant is simply shoulder-fired weapons system and the like.

<span class="mw-page-title-main">Naval Air Weapons Station China Lake</span> US Navy R&D installation in California

Naval Air Weapons Station (NAWS) China Lake is a large military installation in California that supports the research, testing and evaluation programs of the United States Navy. It is part of Navy Region Southwest under Commander, Navy Installations Command, and was originally known as Naval Ordnance Test Station (NOTS).

<span class="mw-page-title-main">RP-3</span> Unguided air-to-surface rocket

The RP-3 was a British air to ground rocket projectile introduced during the Second World War. The "3 inch" designation referred to the nominal diameter of the rocket motor tube. The use of a 60 lb (27 kg) warhead gave rise to the alternative name of the "60-pound rocket". Though an air-to-ground weapon, it saw limited use in other roles. They were generally used by British fighter-bomber aircraft against targets such as tanks, trains, motor transport and buildings, as well as by Coastal Command and Royal Navy aircraft against U-boats and ships.

<span class="mw-page-title-main">Zuni (rocket)</span> Air-to-surface rocket

The Zuni 5-inch Folding-Fin Aircraft Rocket (FFAR), or simply Zuni, is a 5.0 in (127 mm) unguided rocket developed by the Hunter-Douglas Division of Bridgeport Brass Company and deployed by the United States armed forces, and the French Air Force. The rocket was developed for both air-to-air and air-to-ground operations. It can be used to carry various types of warheads, including chaff for countermeasures. It is usually fired from the LAU-10 rocket pod holding four rockets.

<span class="mw-page-title-main">Tiny Tim (rocket)</span> Air-to-surface anti-ship Rocket

The Tiny Tim was an American air-to-ground rocket used near the end of the Second World War.

<span class="mw-page-title-main">NOTS-EV-1 Pilot</span> U.S. expendable launch system

The NOTS-EV-1 Pilot, better known as NOTSNIK was an expendable launch system and anti-satellite weapon developed by the United States Navy's United States Naval Ordnance Test Station (NOTS). NOTSNIK began as an in-house project using available NOTS funds. The Advanced Research Projects Agency later supplied some funds for the program. The program involved creating transistorized sensors to detect nuclear explosions from the Operation Argus tests. Ten were launched during July and August 1958, all of which failed. It was the first air-launched rocket to be used for an orbital launch attempt; however, none was recorded as having reached orbit. Following the third orbital launch attempt a NOTS engineer at the tracking station in Christchurch, New Zealand reported receiving a weak signal from the spacecraft; This was never confirmed, and the launches were not catalogued as having reached orbit. The Pilot rocket was part of Project Pilot.

<span class="mw-page-title-main">High Velocity Aircraft Rocket</span> Air-to-surface rocket

The High Velocity Aircraft Rocket, or HVAR, also known by the nickname Holy Moses, was an American unguided rocket developed during World War II to attack targets on the ground from aircraft. It saw extensive use during both World War II and the Korean War.

Beyond-armour effect is a term coined by Försvarets Fabriksverk (FFV), a semi-governmental Swedish defense firm, while developing the AT4. From the 1980s this phrase was used in its brochures, press releases, weapon instruction manuals and other documentation to denote the post-penetration effect of the AT4's HEAT anti-armour warhead against the interior and occupants of armoured vehicles.

<span class="mw-page-title-main">Hopi (missile)</span> Air-to-surface missile

The Hopi was an air-to-surface missile developed by the United States Navy's Naval Ordnance Test Station. Intended to provide a medium-range nuclear capability for carrier aircraft, the missile reached the flight test stage during 1958, but the project was cancelled following testing and no production was undertaken.

<span class="mw-page-title-main">BOAR</span> Air-to-surface missile

The Bombardment Aircraft Rocket, also known as BOAR, the Bureau of Ordnance Aircraft Rocket, and officially as the 30.5-Inch Rocket, Mark 1, Mod 0, was an unguided air-to-surface rocket developed by the United States Navy's Naval Ordnance Test Station during the 1950s. Intended to provide a standoff nuclear capability for carrier-based aircraft, the rocket entered operational service in 1956, remaining in service until 1963.

<span class="mw-page-title-main">Gimlet (rocket)</span> Unguided rocket

The Gimlet was an unguided air-to-air and air-to-surface rocket developed by the United States Navy during the early 1950s. Although it proved successful in testing and was ordered into large-scale production, the arrival of the guided missile as a practical and reliable weapon resulted in the cancellation of the Gimlet rocket in 1957.

The Diamondback was a proposed nuclear-armed air-to-air missile studied by the United States Navy's Naval Ordnance Test Station during the 1950s. Intended as an enlarged, nuclear-armed version of the successful Sidewinder missile, Diamondback did not progress beyond the study stage.

<span class="mw-page-title-main">Crow (missile)</span> Experimental missile

The Creative Research On Weapons or Crow program was an experimental missile project developed by the United States Navy's Naval Air Missile Test Center during the late 1950s. Intended to evaluate the solid-fueled integral rocket/ramjet (SFIRR) method of propulsion as well as solid-fueled ramjet engines, flight tests were conducted during the early 1960s with mixed success.

<span class="mw-page-title-main">3.5-Inch Forward Firing Aircraft Rocket</span> Anti-submarine rocket

The 3.5-inch Forward Firing Aircraft Rocket, or 3.5-Inch FFAR, was an American rocket developed during World War II to allow aircraft to attack enemy submarines at range. The rocket proved an operational success, and spawned several improved versions for use against surface and land targets.

<span class="mw-page-title-main">M8 (rocket)</span> Air-to-surface and surface-to-surface rocket

The M8 was a 4.5-inch (114 mm) rocket developed and used by the United States military during World War II. Produced in the millions, it was fired from both air- and ground-based launchers; it was replaced by the M16 rocket in 1945.

<span class="mw-page-title-main">AAM-N-5 Meteor</span> Air-to-air missile

The AAM-N-5 Meteor was an early American air-to-air missile, developed by the Massachusetts Institute of Technology and Bell Aircraft for the United States Navy. Initially, both air-launched and ship-launched versions were considered. Versions designed for launch from carrier-based aircraft proceeded to the flight testing stage before the project was cancelled.

<span class="mw-page-title-main">ASM-N-6 Omar</span> Air-to-surface missile

The ASM-N-6 Omar was a short-range air-to-surface missile developed for and evaluated by the United States Navy in the early 1950s. Intended to use existing unguided rockets as a basis and using a novel guidance system involving optical beam-riding, the program was unable to resolve difficulties with the guidance system and was cancelled without entering service.

References

Ram rockets on a F8F Bearcat Ram on F8F.jpg
Ram rockets on a F8F Bearcat

Notes

  1. http://bulletpicker.com/pdf/OP%201415,%20Rocket%20Assemblies.pdf [ bare URL PDF ]
  2. 1 2 3 4 5 Parsch 2004
  3. 1 2 Babcock 1998, p.177
  4. 1 2 3 4 "" U.S. Navy: Naval History and Heritage Command. Accessed 2011-01-08
  5. Babcock 1998, p.179
  6. http://www.koreanwaronline.com/history/Bazooka/1.pdf [ bare URL PDF ]
  7. Magnificent Mavericks: Transition of the Naval Ordnance Test Station from Rocket Station to Research, Development, Test, and Evaluation Center, 1948-58 (History of the Navy at China Lake, California). Dept. of the Navy. p. 181. ISBN   9780945274568.
  8. Babcock 1998, p.183
  9. 1 2 Babcock 1998, p.184
  10. 1 2 Babcock 1998, p.189

Bibliography