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Uploaded on Aug 15, 2008

The CIM-10 Bomarc (originally IM-99) was the product of the Bomarc Missile Program. The Program was a joint United States of America--Canada effort between 1957 and 1971 to protect against the USSR bomber threat. The Bomarc was a joint development with Boeing and Michigan Aeronautical Research Center. It involved the deployment of tactical stations armed with Bomarc missiles along the east and west coasts of North America and the central areas of the continent. BOMARC and the SAGE guidance system were phased out in the early 1970s since they seemed to be ineffective and costly. Neither of these systems was ever used in combat, so while their combat effictiveness remains untested, they are still perceived as having been an important deterrent.

The supersonic Bomarc missiles were the first long-range anti-aircraft missiles in the world. They were capable of carrying conventional or nuclear warheads. Their intended role in defence was in an intrusion prevention perimeter. Bomarcs aligned on the eastern and western coasts of North America would theoretically launch and destroy enemy bombers before the bombers could drop their payloads on industrial regions.

The name Bomarc was created by merging the names of two organizations: Boeing 'BO' and the Michigan Aeronautical Research Center 'MARC'. The Program was authorized in 1949 and originally designated F-99, a fighter designation but was quickly redesignated "IM" for Interceptor Missile, retaining the -99 series number.

The "Bomarc IM-99A" was the first production Bomarc missile, test flown in February 1955. It had an operational radius of 200 miles (~320 km) and was designed to fly at Mach 2.5-2.8 at a cruising altitude of 60,000 feet (18.3 km). It was 46.6 ft (14.2 m) long and weighed 15,500 lb (7,020 kg). Its armament was either a 1,000 pound (455 kg) conventional warhead or a W40 nuclear warhead (7-10 kiloton yield). A liquid fuelled rocket engine boosted the Bomarc to Mach 2, when its Marquardt RJ43-MA-3 ramjet engines would take over for the remainder of the flight.

The Bomarc relied on the Semi Automatic Ground Environment (SAGE), an automated control system used by NORAD for detecting, tracking and intercepting enemy bomber aircraft. SAGE allowed for remote launching of the Bomarc missiles, which were housed in a constant combat-ready basis in individual launch shelters in remote areas. At the height of the program, there were 14 Bomarc sites located in the United States and two in Canada.

Boeing built 570 Bomarc missiles between 1957 and 1964, 269 CIM-10A, 301 CIM-10B.


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