|GTR-18s ready to launch Philippines 1984.JPEG|
GTR-18 "Smokey Sams" on launch rails
|Type||SAM simulator rocket|
|Place of origin||United States|
|Used by||United States military|
|Designer||Naval Air Warfare Center Weapons Division (NAWCWD)|
|Length||15 inches (380 mm)|
|Diameter||2 inches (51 mm)|
|Wingspan||6 inches (150 mm)|
|Flight ceiling||1,800 feet (550 m)|
The GTR-18A, commonly known as the Smokey Sam, is a small unguided rocket developed by Naval Air Warfare Center Weapons Division (NAWCWD) in China Lake, California as a threat simulator for use during military exercises. Widely used in training, the Smokey Sam remains in operational service with the United States military.
Design and development[edit | edit source]
The GTR-18 was conceived in the late 1970s by Robert A. McLellan, a Weapons Range Scientist working with Exercise Red Flag at Nellis Air Force Base. He first searched for a commercially available system that would perform as he envisioned. It quickly became apparent that no commercial product would perform adequately, so the development of the GTR-18 was undertaken by the Naval Weapons Center (NWC) during the early 1980s, with the intent of developing Mr. McLellan's idea of a simple and inexpensive rocket for visually simulating the launch of surface-to-air missiles (SAMs) during training exercises.
Operational history[edit | edit source]
The complete launch system, known as the Smokey Sam Simulator, includes single- and four-rail launching pads, an AN/VPQ-1 radar set, and the GTR-18A rockets themselves, making up the SMU-124/E system as a whole.
When launched, the GTR-18's rocket motor produces a distinctive white plume, providing a realistic simulation of the launch of a surface-to-air missile. While the ordinary GTR-18A has a simple, model rocket type motor, an improved 'Dual Thrust Smokey Sam' tested in the early 2000s featured a modified rocket motor, providing a 1.5 second boost period, followed by a lower-thrust sustainer burn with burnout occurring at 7.1 seconds after launch.
Receiving the altered designation DGTR-18A in the early 1990s, the Smokey Sam remains in production and operational service, being extensively used by the U.S. military.
References[edit | edit source]
Notes[edit | edit source]
- Parsch 2002
- Kitfield 1995, p.166.
- Taylor 2006
Bibliography[edit | edit source]
- Kitfield, James (1995). Prodigal Soldiers: How the Generation of Officers Born of Vietnam Revolutionzed the American Style of War. New York: Simon & Schuster. ISBN 0-671-76925-1. https://archive.org/details/prodigalsoldiers00kitf_2.
- Parsch, Andreas (2002). "NWC GTR-18 Smokey Sam". Directory of U.S. Military Rockets and Missiles. designation-systems.net. http://www.designation-systems.net/dusrm/r-18.html. Retrieved 2011-01-05.
- Taylor, Bill (9 March 2006). "Dual Thrust Modified Smokey Sam for Low Cost Testing and Simulation". NDIA 22nd National Test & Evaluation Conference. Sensor Directorate, Air Force Research Laboratory. http://www.dtic.mil/ndia/2006test/taylor.pdf. Retrieved 2011-01-06.
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