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AGM-78 Standard ARM
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AGM-78 Standard ARM
The AGM-78 Standard ARM or STARM was an anti-radiation missile developed by General Dynamics, United States. It was built on the airframe of the RIM-66 Standard surface-to-air missile, resulting in a very large weapon with considerable range, allowing it to attack targets as much as 50 miles (80 km) away.
Originally developed for the US Navy during the late 1960s, the AGM-78 was created in large part because of the limitations of the AGM-45 Shrike, which suffered from a small warhead, limited range and a poor guidance system. General Dynamics was asked to create an air-launched ARM by modifying the RIM-66 SM-1 surface-to-air missile. This use of an "off the shelf" design greatly reduced development costs, and trials of the new weapon began in 1967 after only a year of development. The first operational missiles were issued in early 1968.
The AGM-78 was known as the STARM by the U.S. Navy, an abbreviation of Standard ARM. The first version of the missile, the AGM-78A-1 or STARM Mod 0, was little more than an air-launched RIM-66 with the Shrike's anti radar seeker head attached to the front. An Aerojet Mark 27 MOD 4 dual-thrust solid-rocket-powered the missile, which was fitted with a blast-fragmentation warhead. Although more capable, the AGM-78 was much more expensive than the AGM-45 Shrike which continued in service for some time. The new missile was carried by the F-105F/G and the A-6B/E.
An inert training version of the AGM-78A was built as ATM-78A. Of equal size, mass and shape, the missile lacked a seeker head, warhead, or propulsion systems and was essentially just a dead weight.
An A-2 model introduced a bomb damage assessment (BDA) capability and an SDU-6/B phosphorus target marker flare to facilitate targeting of the site for follow-up attacks.
In 1969 an improved model called the AGM-78B was produced. This featured a broadband seeker which allowed the missile to be used against a much wider variety of targets without having to select the seeker before the mission. A simple memory circuit was also included, allowing the missile to attack a target once it locked on, even if the radar was shut down. Previous ARMs would veer off course and miss when they lost a target, and as a result flipping the radar on and off had become a standard tactic for missile batteries.
Some early AGM-78A-1s were updated with the new memory circuit and seeker. These missiles were designated as the AGM-78A-4. The AGM-78B was the most important version of the missile, and was widely used by the Air Force's F-4G Phantom II Wild Weasel aircraft.
A training version of the AGM-78B was created, and was known as the ATM-78B.
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AGM-78 Standard ARM
The AGM-78 Standard ARM or STARM was an anti-radiation missile developed by General Dynamics, United States. It was built on the airframe of the RIM-66 Standard surface-to-air missile, resulting in a very large weapon with considerable range, allowing it to attack targets as much as 50 miles (80 km) away.
Originally developed for the US Navy during the late 1960s, the AGM-78 was created in large part because of the limitations of the AGM-45 Shrike, which suffered from a small warhead, limited range and a poor guidance system. General Dynamics was asked to create an air-launched ARM by modifying the RIM-66 SM-1 surface-to-air missile. This use of an "off the shelf" design greatly reduced development costs, and trials of the new weapon began in 1967 after only a year of development. The first operational missiles were issued in early 1968.
The AGM-78 was known as the STARM by the U.S. Navy, an abbreviation of Standard ARM. The first version of the missile, the AGM-78A-1 or STARM Mod 0, was little more than an air-launched RIM-66 with the Shrike's anti radar seeker head attached to the front. An Aerojet Mark 27 MOD 4 dual-thrust solid-rocket-powered the missile, which was fitted with a blast-fragmentation warhead. Although more capable, the AGM-78 was much more expensive than the AGM-45 Shrike which continued in service for some time. The new missile was carried by the F-105F/G and the A-6B/E.
An inert training version of the AGM-78A was built as ATM-78A. Of equal size, mass and shape, the missile lacked a seeker head, warhead, or propulsion systems and was essentially just a dead weight.
An A-2 model introduced a bomb damage assessment (BDA) capability and an SDU-6/B phosphorus target marker flare to facilitate targeting of the site for follow-up attacks.
In 1969 an improved model called the AGM-78B was produced. This featured a broadband seeker which allowed the missile to be used against a much wider variety of targets without having to select the seeker before the mission. A simple memory circuit was also included, allowing the missile to attack a target once it locked on, even if the radar was shut down. Previous ARMs would veer off course and miss when they lost a target, and as a result flipping the radar on and off had become a standard tactic for missile batteries.
Some early AGM-78A-1s were updated with the new memory circuit and seeker. These missiles were designated as the AGM-78A-4. The AGM-78B was the most important version of the missile, and was widely used by the Air Force's F-4G Phantom II Wild Weasel aircraft.
A training version of the AGM-78B was created, and was known as the ATM-78B.
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