Aeronautical Terms beginning with J

Jamming

Electronic or mechanical interference which may disrupt the display of aircraft on radar or the transmission/reception of radio communications/navigation.

Jet Blast

Jet engine exhaust (thrust stream turbulence).

Jet Route

A route designed to serve aircraft operations from 18,000 feet MSL up to and including flight level 450. The routes are referred to as “J” routes with numbering to identify the designated route; e.g., J105.

Jet Stream

A migrating stream of high-speed winds present at high altitudes.

Jettisoning Of External Stores

Airborne release of external stores; e.g., tiptanks, ordnance.

Joint Use Restricted Area

Restricted Area.