Jet engine exhaust (thrust stream turbulence). (See WAKE TURBULENCE.)
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. (See Class A AIRSPACE.) (Refer to 14 CFR Part 71.)
A migrating stream of high-speed winds present at high altitudes.
JETTISONING OF EXTERNAL STORES
Airborne release of external stores; e.g., tip tanks, ordnance. (See FUEL DUMPING.) (Refer to 14 CFR Part 91.)
JOINT USE RESTRICTED AREA
(See RESTRICTED AREA.)