BRITANNIA
Mk253 LIMITATIONS
.
|
AIRFRAME LIMITATIONS |
|
|
|
|
|
NEVER EXCEED SPEED Vne |
288
KT or 0.65 MACH |
|
NORMAL OPERATING SPEED LIMIT Vno |
258 KT or 0.60 MACH |
|
AUTOPILOT MAX OPERATING SPEED |
258 KT or 0.60 MACH |
|
MANOEUVRING SPEED, FULL
AILERON/RUDDER |
203 KT |
|
FLAPS UP – 15’ |
210KT |
|
15’ – 30’ |
180 KT |
|
30’ – 45’ |
160 KT |
|
UNDERCARRIAGE EXTENSION |
180 KT |
|
WITH U/C EXTENDED |
200 KT |
|
LANDING LAMPS EXTENSION |
165 KT |
|
EXTENDED |
210 KT |
|
CROSSWIND MAX FOR TAKEOFF |
20
KT |
|
MAX FOR LANDING |
25 KT |
|
FUEL JETTISONING MAX SPEED |
210 KT |
|
MAXIMUM TAKEOFF WEIGHT |
185000
LB |
|
MAXIMUM LANDING WEIGHT |
140000
LB |
|
|
|
|
POWER PLANT LIMITATIONS |
|
|
|
|
|
OIL TEMPERATURE MAX FOR STARTING |
35’C |
|
MIN FOR OPENING UP |
5’C |
|
MAX IN FLIGHT |
110’C |
|
MAX BEFORE TAKEOFF |
90’C |
|
OIL PRESSURE |
70 - 80 PSI |
|
MIMIMUM ABOVE
10000 CRPM |
50 PSI |
|
PROPELLER LIMITATIONS |
|
|
PROHIBITED FOR
CONTINUOUS |
360
– 560 PRPM |
|
INFLIGHT MINIMUM |
850
PRPM |
|
MAX CONTINUOUS |
920
PRPM |
|
MAXIMUM PERMISSIBLE |
1000
PRPM |
|
ENGINE LIMITATIONS MAX DRY |
11775
CRPM 815 PSI |
|
MAX
WET |
12000
CRPM 815 PSI |
|
MAX
CONT BELOW FL150 |
11500
CRPM 780 PSI |
|
MAX
CONT ABOVE FL 150 |
11650
CRPM 780 PSI |
|
MIN
FLIGHT IDLING 7900 CRPM
@ 850 – 920 PRPM |
|
|
MAX
REVERSE |
11500
CRPM for 1 MIN |