Aircraft Links: List of links to specific aircraft
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Glossary — J

JAA Joint Aviation Authorities.

JAR Joint Aviation Requirements, agreed by all major EC countries (JAR 25 equivalent to FAR Pt 25).

JAR-VLA JAR classification for Very Light Aircraft (MTOW limit of 750 kg; 1 653 Ib).

JASDF Japan Air Self-Defence Force.

JASSM Joint Air-to-Surface Stand-off Missile (US designation = AGM-158).

JATO Jet-assisted take-off (actually means rocket-assisted).

JCAB Japan Civil Airworthiness Board.

JDA Japan Defence Agency.

JDAM Joint Direct Attack Munition, being a GPS-duidane package added to existing bomb bodies, US designations being GBU-29 (with Mk 81 bomb), GBU-30 (Mk 82), GBU-31 (Mk 83), GBU-32 (Mk 84 or BLU-109/B) and GBU-35 (BLU-110/B).

JGSDF Japan Ground Self-Defence Force.

JMSA Japan Maritime Safety Agency.

JMSDF Japan Maritime Self-Defence Force.

joined wing Tandem wing layout in which forward and aft wings are swept so that the outer sections meet.

JPATS Joint Primary Aircraft Training System (Beech T-6A Texan ll).

JSC Joint stock company.

JSF Joint Strike Fighter. (The Lockheed Martin F-35).

JSOW Joint Stand-Off Weapon, US designations being AGM-154A (with 145 BLU-97/B bomblets), AGM-154B (with six BLU-108/B bomblets) and AGM-154C (with BROACH penetrating warhead).

J-STARS US Air Force/Navy Joint Surveillance and Target Attack Radar System in Northrop Grumman E-8C.

JTIDS Joint Tactical Information Distribution System (NATO Link 16).

Junkers aileron Control surface (sometimes flaperon) suspended from mountings to the rear of wing trailing edge.

JVX Joint Vertical experimental the tiltrotor project which became the V-22 Osprey.