Williams F112
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The Williams F112 is a small
turbofan The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft engine, aircraft propulsion. The word "turbofan" is a portmanteau of "turbine" and "fan": the ''turbo'' portion refers to a gas turbine engine which ac ...
engine made by
Williams International Williams International is an American manufacturer of small gas turbine engines based in Pontiac, Michigan, United States. It produces jet engines for cruise missiles and small jet aircraft. History Dr. Sam B. Williams worked at Chrysler on th ...
designed to power
cruise missile A cruise missile is a guided missile used against terrestrial or naval targets that remains in the atmosphere and flies the major portion of its flight path at approximately constant speed. Cruise missiles are designed to deliver a large warhe ...
s. It has been used as the powerplant for the AGM-129 Advanced Cruise Missile and the
AGM-86B The AGM-86 ALCM is an American subsonic air-launched cruise missile (ALCM) built by Boeing and operated by the United States Air Force. This missile was developed to increase the effectiveness and survivability of the Boeing B-52H Stratofortre ...
advanced cruise missile, as well as the experimental
X-36 The McDonnell Douglas (later Boeing) X-36 ''Tailless Fighter Agility Research Aircraft'' was an American stealthy subscale prototype jet designed to fly without the traditional empennage found on most aircraft. This configuration was designed ...
and X-50.


Design and development

Although Williams originally designed these small turbofans to power target drones while aiming for a contract in the Subsonic Cruise Armed Decoy (SCAD) program, it quickly became apparent that these were valuable tools to be used in the future to power advanced cruise missiles. Originally designated the F107-WR-14A6, then designated the F107-WR-103 by Williams then designated the F112-WR-100 by the USAF. Though the true benefits that the F112 brought to the
AGM-129 The AGM-129 ACM (Advanced Cruise Missile) was a low-observable, subsonic, turbofan-powered, air-launched cruise missile originally designed and built by General Dynamics and eventually acquired by Raytheon Missile Systems. Prior to its withdrawal ...
are classified, it has been said that the F112 increased the range of the AGM-129 to four times that of the
AGM-86B The AGM-86 ALCM is an American subsonic air-launched cruise missile (ALCM) built by Boeing and operated by the United States Air Force. This missile was developed to increase the effectiveness and survivability of the Boeing B-52H Stratofortre ...
. Another benefit is that the infrared heat signature has also been reduced or nearly eliminated, aiding the stealthiness of the AGM-129. This was accomplished with the use of high tech materials and coatings.


Applications

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AGM-129 ACM The AGM-129 ACM (Advanced Cruise Missile) was a low-observable, subsonic, turbofan-powered, air-launched cruise missile originally designed and built by General Dynamics and eventually acquired by Raytheon Missile Systems. Prior to its withdraw ...
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Boeing X-50 The Boeing X-50A Dragonfly, formerly known as the Canard Rotor/Wing Demonstrator, was a VTOL rotor wing experimental unmanned aerial vehicle that was developed by Boeing and DARPA to demonstrate the principle that a helicopter's rotor could be st ...
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McDonnell Douglas X-36 The McDonnell Douglas (later Boeing) X-36 ''Tailless Fighter Agility Research Aircraft'' was an American stealthy subscale prototype jet designed to fly without the traditional empennage found on most aircraft. This configuration was designed t ...


Specifications


See also


References

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External links


National Museum of the USAF F112 fact sheet

Archived "Aviation Gas Turbine Forecast" sample, 2009 by Forecast International

F112 on LeteckeMotory.cz
(cs) {{aeroengine-specs Low-bypass turbofan engines 1970s turbofan engines F112 Centrifugal-flow turbojet engines