Guimbal CABRI G2 Flight Manual page 36

Hélicoptères Guimbal
CABRI G2
Indicated power on MLI
The Multiple Limits Indicator displays the engine power status, based on engine
manifold absolute pressure. The indicator (pointer and digits) displays power
delivered by the engine in terms of margin to the first of these limits whose
relative positions vary with engine inlet air temperature and altitude:
•
Power (PWR) limit: it corresponds to the engine 5-minute power of
119 kW (160 hp). The red radial PWR mark shows that the limit could be
exceeded if the pilot requires too much power.
•
Yellow arc: it corresponds to the range of power above max cont. power
(108 kW – 145 hp) that can be used for 5 minutes, up to 30 kt IAS.
o After 1 minute in the yellow arc, a countdown indicator appears,
displaying time remaining in minutes, surrounded by an increasing arc
of ring figuring the time elapsed up to 5 minutes. The pilot should
lower the power below the yellow arc before the count-down has
elapsed or before exceeding 30 kt IAS.
o After 5 minutes in the yellow arc, it becomes red, showing
maximum duration has elapsed.
o Limitations to use the yellow arc:
▪ Limited to 5 minutes and a maximum airspeed of 30 kt IAS,
▪ AVGAS only. Using alternate grades (refer to 2-6 Fuel) forbids
the use of the yellow arc.
•
Throttle (FLO) limit: it corresponds to full throttle power. FLO limit
corresponds to the maximum power that the engine can deliver. The red
FLO arc warns the pilot that the limit cannot mechanically be exceeded in
order to help him anticipate: the consequence of increasing collective
when FLO limit is reached is the main rotor speed drop.
The part of the yellow arc which extends above FLO limit appears in red,
showing it cannot be used.
The pilot should control the power demand to avoid exceeding PWR limit or 5
minute duration, or avoid entering yellow zone when 30 kt IAS is exceeded.
Exceedance of the limit may result in accelerated engine and transmission
performance degradation, but does not require any emergency procedure. Any
degradation should be identified through normal maintenance in a timely
manner.
Maximum rated – 5 minutes – Max. 30 kt IAS – AVGAS only
........................................................................................ 119 kW - 100 % PWR
Maximum rated – Continuous .......................... 108 kW - yellow arc threshold
Full throttle .......................................................................................100 % FLO
2-8 EASA Approved
SECTION 2
LIMITATIONS
Issue 10
Original issue