AIRPORT PLANNING MANUAL GROUND IDLE, SEA LEVEL, Tamb = ISA+16.7° C, FNIN1 = 3785 N (851 lbf) ENGINE EXHAUST HAZARD AREA VELOCITY = 65 mph OR GREATER = 29.0 m/s (95.3 ft/s) 2 26 m (86 ft) 1 2.6 m R=2.5 m (8.6 ft) (8.3 ft) 1 INLET HAZARD AREA − CONDITION: 20 kn HEADWIND/CROSSWIND/TAILWIND BASED ON 12.2 m/s (40 ft/s) CRITICAL VELOCITY WITH 0.9 m (3 ft) CONTINGENCY FACTOR. 2 EXHAUST HAZARD AREA − CONDITION: 20 kn HEADWIND WITH GROUND EFFECTS. EM170MFEP010002A.DGN Hazard Areas - Ground Idle Figure 6.8 EFFECTIVITY: ALL Section 6 Page 6-10 Oct 07/10 w-apm1346