Eurocopter AS 350 83 Flight Manual page 28

FLIGHT MANUAL
12 ENGINE LIMITATIONS
The aircraft is equipped with a TURBOMECA "ARRIEL 2B" engine.
Operating limitations are determined by the gas generator rotation speed
(Ng) , by the exhaust gas temperature (t4) or by the free turbine rotation
speed (Nf) depending on the operating conditions.
CAUTION: P2 BLEED IS PROHIBITED AT POWER SETTINGS BEYOND MAX CONTINUOUS
POWER.
12.1 Gas Generator Speed
-Maximum transient rating (less than
5 sec.)
-Maximum take-off rating (5 min)
With P2 air bleed off (Refer to CAUTION)
R
-Maximum continuous
12.2 t4 Temperatures
-Maximum for engine starting 750.(
-Maximum transient during starting (10 s max.) --865.(
-Maximum on takeoff 915.(
-Maximum continuous 849.(
12.3 Free Turbine Speeds
-Maximum
.continuous 418 rpm
.transient limits (5 s max.) 450 rpm
-Minimum 349 rpm
~ : A rotor speed of 394 rpm corresponds to a free turbine speed of
39970 rpm.
2.1
Page 6
35083
DGAC Approved:
IAIBICIDIFI
98-36