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Radioplane BTT
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Radioplane BTT
The Radioplane BTT, known as RP-71 by the company, as WS-426/2 by the United States Navy, and as WS-462/2 by the US Air Force, is a family of target drones produced by the Radioplane Company (later a division of Northrop).
In the post-World War II period, Radioplane followed up the success of the OQ-2 target drone with another very successful series of piston-powered target drones, what would become known as the Basic Training Target (BTT) family (the BTT designation wasn't created until the 1980s, but is used here as a convenient way to resolve the tangle of designations). The BTTs remained in service for the rest of the 20th century.
The BTT family began life in the late 1940s, evolving through a series of refinements with the US Army designations of OQ-19A through OQ-19D, and the US Navy name of Quail with designated KD2R. Early models had a metal fuselage and wooden wings, but production standardized on an all-metal aircraft.
Radioplane developed an experimental XQ-10 variant that was mostly made of plastic, but although evaluations went well, it wasn't considered a major improvement over existing technology, and it did not go into production.
Radioplane was bought out by Northrop in 1952 to become the Northrop Ventura Division, though it appears that the "Radioplane" name lingered on for a while.
In 1963, when the US military adopted a standardized designation system, the surviving US Army BTT variants became MQM-33s and the KD2R-1, the only member of the family still in Navy service, became the MQM-36 Shelduck.
The MQM-36 was the most evolved of the BTT family, but retained the same general configuration as the other members. It was larger and more sophisticated than the first-generation OQ-2A series, and was powered by a more powerful flat-four four-stroke McCulloch piston engine with 72 hp (54 kW). The MQM-36 carried Luneburg lens radar enhancement devices in its wingtips that generated a radar signature of a larger aircraft. The radar reflectors (Luneburg lens) wasn't used by the US Navy as the air search radar interfered with the control signals. Thus the air search radar was not used.
Launch was by RATO booster or bungee catapult, and recovery by parachute.
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Radioplane BTT
The Radioplane BTT, known as RP-71 by the company, as WS-426/2 by the United States Navy, and as WS-462/2 by the US Air Force, is a family of target drones produced by the Radioplane Company (later a division of Northrop).
In the post-World War II period, Radioplane followed up the success of the OQ-2 target drone with another very successful series of piston-powered target drones, what would become known as the Basic Training Target (BTT) family (the BTT designation wasn't created until the 1980s, but is used here as a convenient way to resolve the tangle of designations). The BTTs remained in service for the rest of the 20th century.
The BTT family began life in the late 1940s, evolving through a series of refinements with the US Army designations of OQ-19A through OQ-19D, and the US Navy name of Quail with designated KD2R. Early models had a metal fuselage and wooden wings, but production standardized on an all-metal aircraft.
Radioplane developed an experimental XQ-10 variant that was mostly made of plastic, but although evaluations went well, it wasn't considered a major improvement over existing technology, and it did not go into production.
Radioplane was bought out by Northrop in 1952 to become the Northrop Ventura Division, though it appears that the "Radioplane" name lingered on for a while.
In 1963, when the US military adopted a standardized designation system, the surviving US Army BTT variants became MQM-33s and the KD2R-1, the only member of the family still in Navy service, became the MQM-36 Shelduck.
The MQM-36 was the most evolved of the BTT family, but retained the same general configuration as the other members. It was larger and more sophisticated than the first-generation OQ-2A series, and was powered by a more powerful flat-four four-stroke McCulloch piston engine with 72 hp (54 kW). The MQM-36 carried Luneburg lens radar enhancement devices in its wingtips that generated a radar signature of a larger aircraft. The radar reflectors (Luneburg lens) wasn't used by the US Navy as the air search radar interfered with the control signals. Thus the air search radar was not used.
Launch was by RATO booster or bungee catapult, and recovery by parachute.
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