ENVIRONMENTAL ENVELOPE

Question 1

MINIMUM PRESSURE ALTITUDE/TEMPERATURE TO TAKEOFF & LAND & FOR FLIGHT

Answer 1

-2000 FEET & OAT -54*C UP TO 6000 FEET THEN LINEARLY UP TO -42*C AT 10000 FEET

Question 2

MAXIMUM PRESSURE ALTITUDE/TEMPERATURE TO TAKEOFF & LAND

Answer 2

10000 FEET & +55*C UP TO 0 FEET THEN LINEARLY UP TO 35*C AT 10000

Question 3

MAXIMUM CRUISING PRESSURE ALTITUDE AND TEMPERATURE LIMITS

Answer 3

43100 FEET WITH TEMP BETWEEN -78*C & -35*C

Question 4

MINIMUM TAT

Answer 4

-53*C

Question 5

MAXIMUM OPERATING ALTITUDE WITH SLATS &/OR FLAPS EXTENDED

Answer 5

20000 FEET

Question 6

MAXIMUM ALTITUDE AT WHICH LANDING GEAR CAN BE EXTENDED

Answer 6

21000 FEET The speed limitation for landing gear extension is 250 kt/M 0.55. The Landing Gear Control and Indication System (LGCIS) uses only speed limitation to inhibit the landing gear extension. To avoid any inadvertent landing gear extension out of speed limit when the aircraft flies in Mach, the cross-over altitude corresponding to the speed of 250 kt/M 0.55 is introduced as the highest altitude target to extend the landing gear. This altitude is 21 000 ft. Nevertheless in the case of emergency, respecting the M 0.55 speed limitation, the flight crew can extend the landing gear if necessary