GAM-67 Crossbow

The GAM-67 Crossbow was a jet-powered anti-radar missile built by Northrop's Ventura Division (successor to the Radioplane Company).

GAM-67 Crossbow
GAM-67 on B-47
Crossbow on B-47 carrier aircraft
TypeAnti-radar missile
Place of originUnited States
Production history
Mass2,800 lb (1,270 kg)
Length19 ft 1 in (5.82 m)
Height4 ft 6 (1.37 m)

EngineContinental J69 turbojet
Wingspan12 ft 6 in (3.81 m)
300 miles (480 km)
Flight altitude40,000 ft (12,200 m)
Speed675 mph (1,090 km/h)
Aircraft or RATO


In the late 1940s, the Radioplane Company developed a set of prototypes of the Q-1 target series, which used pulsejet or small turbojet engines. Although the Q-1 series was not put into production as a target, it did evolve into the USAF RP-54D / XB-67 / XGAM-67 Crossbow anti-radar missile, which was first flown in 1956. It was also considered as a platform for reconnaissance, electronic countermeasures, and decoy roles.

The Crossbow had a cigar-shaped fuselage, straight wings, a straight twin-fin tail, and an engine inlet under the belly. It was powered by a Continental J69 turbojet engine, with 4.41 kN (450 kgf/1,000 lbf) thrust. Two Crossbows could be carried by a Boeing B-50 Superfortress bomber, while four Crossbows could be carried by a Boeing B-47 Stratojet bomber.

The Crossbow's speed was not enough to allow it to get far ahead of the launching bomber before it ran out of fuel. Only 14 Crossbows were built before the program was cancelled in 1957, in favor of the Longbow, essentially a supersonic version of the same concept. Longbow was eventually cancelled as well.[1] None of the alternative roles were taken up either, with all work on the concept ending in 1960. However, it did point the way to the range of missions that would be performed by UAVs in later decades.


  1. ^ Parsch, Andreas (9 January 2003). "Radioplane B-67/GAM-67 Crossbow". Directory of U.S. Military Rockets and Missiles Appendix 1: Early Missiles and Drones. Designation-Systems. Retrieved 2017-11-25.
  • Early versions of this article contained material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which was published into the Public Domain.

The Boeing AGM-69 SRAM (short-range attack missile) was a nuclear air-to-surface missile. It had a range of up to 50 nautical miles (93 km; 58 mi), and was intended to allow US Air Force strategic bombers to penetrate Soviet airspace through the neutralization of surface-to-air missile defenses.

SRAM was designed to replace the older AGM-28 Hound Dog standoff missile which was tasked with the same basic role. Hound Dog was a very large missile that could only be carried in pairs by the B-52, so some aircraft were tasked with suppressing Soviet missile and radar sites while others would carry on to strike their strategic targets. SRAM was so much smaller that a number could be carried along with other weapons, allowing a single aircraft to blast its own way through to its targets.

SRAM entered service in 1972 and was carried by a number of aircraft, including the B-52, FB-111A, and the B-1B. In September 1980 a ground fire raised concerns about the safety of the warhead, and in 1990 they were temporarily removed from service while safety checks were carried out. These revealed a number of the missile's rocket motors had developed cracks that could have resulted in them exploding when launched.

The SRAM was removed from service in 1993, by which time its mission was rendered obsolete by the introduction of the AGM-86, which could be launched from far outside the range of Soviet weapons, and no longer required the bombers to penetrate Soviet defenses.

List of missiles by country

This list of missiles by country displays the names of missiles in order of the country where they originate (were developed), with the countries listed alphabetically and annotated with their continent (and defence alliance, if applicable). In cases where multiple nations have developed or produced a missile, it is listed under each significantly participating nation. Within the lists of each country, missiles are ordered by designation and/or calling name (the latter being especially relevant for Russian/Soviet missiles). In some cases multiple listings are used, in order to provide cross-references for easier navigation.

This is not a list of missiles in operational service by a particular country; nor a list of military rockets. Anti-tank missiles are listed elsewhere

For an alphabetical list by missile name, see the list of missiles.

List of unmanned aerial vehicles

The following is a list of unmanned aerial vehicles developed and operated in various countries around the world.

Northrop Corporation

Northrop Corporation was a leading United States aircraft manufacturer from its formation in 1939 until its 1994 merger with Grumman to form Northrop Grumman. The company is known for its development of the flying wing design, most successfully the B-2 Spirit stealth bomber.

Radioplane Company

The Radioplane Company was an American aviation company that produced drone aircraft primarily for use as gunnery targets. During World War II, they produced over 9,400 of their Radioplane OQ-3 model, a propeller-powered monoplane, making it the most-used target aircraft in the US. In the post-World War II era they introduced their Radioplane BTT series, which was produced for years and eventually reached almost 60,000 examples. They also produced several radio control and self-guided missiles, the largest being the GAM-67 Crossbow, which didn't enter service. The company was purchased by Northrop Corporation in 1952, and moved to one of Northrop's factories in 1962. One of the last projects carried out at the original Radioplane factory in Van Nuys, California, was the construction of the Gemini Paraglider.

Radioplane Q-1

The Radioplane Q-1 was an American target drone, developed in the early 1950s for the United States Air Force by the Radioplane Company. Originally powered by a pulsejet engine, then later developed as an improved turbojet-powered aircraft, the Q-1 failed to win the favor of the USAF. However, the aircraft provided the basis of the GAM-67 Crossbow anti-radar missile.

1955–1962 United States Air Force rocket and missile designations
Air-to-air missiles
Other types
Undesignated types
USAAS/USAAC/USAAF/USAF bomber designations, Army/Air Force and Tri-Service systems
Original sequences
Main sequence
Long-range Bomber
Tri-Service sequence


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