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J-UCAS joint unmanned combat air systems
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J/S jammer-to-signal ratio
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JAA Joint Aviation Authority
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JCA Joint Cargo Aircraft
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JAR joint airworthiness requirement
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JAR-OPS Joint Aviation Regulations Operations
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JAR-AWO JAR-all weather operations
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JATO jet assisted takeoff
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JCAB Japanese Civil Aviation Bureau
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JCAT Joint Combat Assessment Team
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JFET junction field effect transistor
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JFEX Joint Expeditionary Force Experiment
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JFS Joint Strike Fighter
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JFX Joint Forces Exercise
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JHMCS joint helmet-mounted cueing systems
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JPALS Joint Precision Approach and Landing System
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JPDO Joint Planning Development Office (U.S.)
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JPEO Joint Program Executive Office Joint Tactical Radio System
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JPL Jet Propulsion Laboratory
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JPO Joint Planning Office
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JPS journal processing system
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JRANS Japanese regional air navigation system
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JRC Joint Resource Council
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JSTeF JTRS Science and Technology Forum
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JSAT joint system acceptance test
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JTAG Joint Test Action Group
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JTIDS joint tactical information distribution system
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JTRS joint tactical radio system
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JV joint venture
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JVMF joint variable message format
