Order 7110.65P, Air Traffic Control, with changes

2/19/04Pilot/Controller GlossaryJJAMMING− Electronic or mechanical interferencewhich may disrupt the display of aircraft on radar orthe transmission/reception of radio communications/navigation.JET BLAST− Jet engine exhaust (thrust streamturbulence).(See WAKE TURBULENCE.)JET ROUTE− A route designed to serve aircraftoperations from 18,000 feet MSL up to and includingflight level 450. The routes are referred to as “J”routes with numbering to identify the designatedroute; e.g., J105.(See Class A AIRSPACE.)(Refer to 14 CFR Part 71.)JET STREAM− A migrating stream of high-speedwinds present at high altitudes.JETTISONING OF EXTERNAL STORES− Airbornerelease of external stores; e.g., tiptanks,ordnance.(See FUEL DUMPING.)(Refer to 14 CFR Part 91.)JOINT USE RESTRICTED AREA−(See RESTRICTED AREA.)PCG J−1