Radioplane Q-1

Last updated
Q-1
Radioplane YQ-1B.jpg
Radioplane YQ-1B
RoleHigh-speed target drone
Manufacturer Radioplane Company
First flight1950
Primary user U.S. Air Force
Number built34
Developed into GAM-67 Crossbow

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.

Contents

Design and development

Shortly after its formation in 1948, the United States Air Force issued a specification calling for a new type of high-speed target drone. Required to be jet-powered to provide the most realistic training, the contract for the development of the drone was given to the Radioplane Company, later a division of Northrop. [1]

Powered by a single Giannini PJ39 pulsejet engine, the drone, given the designation RP-26 by the company and XQ-1 by the USAF, was a high-wing, rocket sled launched aircraft. Originally fitted with a large single vertical stabiliser, the design was modified to a twin tail configuration to provide additional clearance of its carrier aircraft. [1] Recovery, following the conclusion of the drone's flight, was by parachute. [1]

Operational history

The first flight of the XQ-1 prototype took place in 1950; 28 aircraft of the type were built. [1] Although the aircraft proved to be mostly satisfactory, the thirsty nature of the pulsejet engine limited the drone's endurance to a mere 60 minutes. [2] In an attempt to increase the potential flight time of the aircraft, one XQ-1 was re-engined with a Continental YJ69 turbojet replacing the pulsejet, becoming the XQ-1A; [1] however it was determined that further improvements were needed, and so a major redesign of the type was undertaken. [1]

Known by the company as RP-50 and designated by the USAF as YQ-1B, the revised drone flew for the first time during 1953, being evaluated by the Air Force later that year. Using the YJ69 engine, the air intake for the jet was relocated to the nose of the aircraft, while the airframe overall was modified to increase the streamlining of the craft. [1] The rocket-sled launch was abandoned in favor of air launching, with the Douglas DB-26 being the most common carrier aircraft. [1]

Six YQ-1Bs were built for evaluation; they proved trouble-free, no production order for the type was undertaken, the competing Ryan Q-2 drone having been selected for operational service instead; as a result, the Q-1 program was terminated. [1] However, the YQ-1B airframe was used by Radioplane as the start of development of a new anti-radar missile, which would be tested by the U.S. Air Force as the GAM-67 Crossbow. [3]

Variants

XQ-1
Initial pulsejet-powered prototype with single tail; later refitted with twin tails. 28 built. [1]
XQ-1A
Turbojet-powered version. One modified from XQ-1. [1]
YQ-1B
Definitive turbojet-powered version, six built. [1]
XQ-3
Variant planned to be constructed of fiberglass, none built. [1]

Specifications (YQ-1B)

Data from [1]

General characteristics

Performance

See also

Related development

Aircraft of comparable role, configuration, and era

Related lists

Related Research Articles

ADM-20 Quail Decoy cruise missile

The McDonnell ADM-20 Quail was a subsonic, jet powered, air-launched decoy cruise missile built by McDonnell Aircraft Corporation. The Quail was designed to be launched by the Boeing B-52 Stratofortress strategic bomber and its original United States Air Force designation was GAM-72.

Northrop AQM-35

The AQM-35 was a supersonic target drone produced by the Northrop Corporation.

Northrop AQM-38 Target drone

The AQM-38 was an American target drone, developed during the 1950s by the Radioplane Division of the Northrop Corporation, Newbury Park, California, and manufactured by its Ventura Division at Van Nuys, California. Extensively used for surface-to-air missile training, over two thousand were built during its production run and it saw continued use within the United States Army and United States Navy for nearly twenty years.

History of unmanned aerial vehicles

UAVs include both autonomous drones and remotely piloted vehicles (RPVs). A UAV is capable of controlled, sustained level flight and is powered by a jet, reciprocating, or electric engine. In the twenty first century technology reached a point of sophistication that the UAV is now being given a greatly expanded role in many areas of aviation.

GAM-67 Crossbow Missile

The GAM-67 Crossbow was a jet-powered anti-radar missile built by Northrop's Ventura Division.

Project Gorgon Missile / test vehicle / target drone

The Gorgon missile family was a series of experimental air-to-air, air-to-surface, and surface-to-surface missiles developed by the United States Navy's Naval Aircraft Modification Unit between 1943 and 1953. The immaturity of the technology involved meant that none of the Gorgon missiles achieved operational service, however they were extensively used in the development of guided missile controls and guidance technologies.

Project Kingfisher Anti-ship missiles

Project Kingfisher was a weapons-development program initiated by the United States Navy during the latter part of World War II. Intended to provide aircraft and surface ships with the ability to deliver torpedoes to targets from outside the range of defensive armament, six different missile concepts were developed; four were selected for full development programs, but only one reached operational service.

Interstate XBDR

The Interstate XBDR was a design for an assault drone - an early television-guided missile - powered by two jet engines, that was designed by the Interstate Aircraft and Engineering Corporation during the latter stages of the Second World War for use by the United States Navy. Wind tunnel tests of a scale model were conducted, however no full-scale examples of the aircraft were built before the project was cancelled.

McDonnell TD2D Katydid American target drone

The McDonnell TD2D Katydid was a pulsejet-powered American target drone produced by McDonnell Aircraft that entered service with the United States Navy in 1942, and continued in use until the late 1940s.

Curtiss KD2C Skeet Cancelled target drone program

The Curtiss-Wright KD2C Skeet was an American target drone produced by Curtiss-Wright for the United States Navy that began development in 1945. The KD2C-1 first flew in 1947, however it was found unsatisfactory and the program was cancelled in 1949.

Globe KD5G

The Globe KD5G is a pulsejet-powered American target drone produced by Globe Aircraft Corporation that began development in 1949. Due to changing requirements for drone performance, it was only operated by the United States Navy for a short period.

Globe KD2G Firefly

The Globe KD2G Firefly was a pulsejet-powered American target drone, built by the Globe Aircraft Corporation for operation by the United States Navy in the late 1940s, seeing operational use into the mid-1950s.

Globe KD6G Firefly

The Globe KD6G Firefly is an American target drone, built by the Globe Aircraft Corporation for operation by the United States Navy during the 1950s and early 1960s.

Radioplane XKD4R 1950s American target drone

The Radioplane XKD4R, known by the company designation RP-70, was an American target drone developed by the Radioplane Division of the Northrop Corporation. Although it was not produced in quantity, it was developed into the successful AQM-38.

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.

Naval Aircraft Modification Unit KDN Gorgon

The Naval Aircraft Modification Unit KDN Gorgon, originally designated TD2N, was an early jet-powered target drone developed by the Bureau of Aeronautics and constructed by the Naval Aircraft Modification Unit for use by the United States Navy. First flown near the end of World War II, it was cancelled due to problems with its engine in 1946.

KA3N Gorgon III Air-to-air missile

The Gorgon III – given the military designations KA3N, KU3N, CTV-N-6 and RTV-N-4 – was a rocket-powered air-to-air missile developed by the United States Navy near the end of World War II. With the end of the war, the program was changed to that of a research vehicle for missile control systems; both single and twin-rocket-powered versions were built and tested.

Radioplane OQ-17 1940s American target drone

The Radioplane OQ-17 was a target drone produced by the Radioplane Company for the United States Army Air Forces and, as the TD4D/KDR Quail, the United States Navy. Suffering from an unreliable engine, the OQ-17 production run was cut short in favor of the OQ-19.

Republic SD-3 Snooper

The Republic SD-3 Snooper was an early reconnaissance drone developed by Republic Aviation for the United States Army. It was evaluated by the Army Signal Corps in 1959, but did not enter operational service.

The Radioplane OQ-6 was a target drone developed by the Radioplane Company under the designation RP-14 and evaluated by the United States Army Air Forces for service use. A small number were procured, but major production contracts were cancelled by the end of World War II.

References

Citations
  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Parsch 2003
  2. Yenne 2004, p.21.
  3. Newcomb 2004, p.72.
Bibliography