Kazan Helicopters Mi-17-1V Flight Manual page 37

M,,·17-1B. Flight manual
2.5. External load limitations
(1) The helicopter maximum takeoff weight for transportation of external load
(inc!uding the load weight) is determined for the actual conditions of take-
off from the graph placed in subsection 1.6 but in all cases it should not
exceed 13000 kg.
The maximum weight of external load is 3000kg.
(2) The maximum allowed speed for transportation of external load should be
determined in each case depending on the load behavior (which is dic-
tated by its aerodynamic configuration) but not in excess of the speeds
indicated in Table 2.1 (depending on the takeoff weight).
2.6
Power plant limitations
(1) The maximum operational characteristics of the engines at all altitudes
and airspeeds are indicated in Table 2.7.
Table 2.7
f d'ff f E nome maximum opera
me
parameters at
I
eren power ra mos.
Maximum gasgenerator Maximum gas
Power turbine inletgastemperature, generator turbine
'C
speed, %
Takeoff(bothengines operating and 2,5
990 101.15
min power, OEI)(contlnqencv)
30 min.power, OEI (takeoff) 990 101.15
Continuous power, OEI (normal) 955 99.0
Crulslno 1 910 97.5
Cruisina 2
870 95.5
Idle 780 see Fia.3.3
Notes: 1. In case of failure of the TGT Regulator limit the maximum allowed
parameters by decreasing the engine power.
2. In case of failure of EEC the maximum allowed gas generator
speed at indicated powers is 102.5%. If necessary, limit the parame-
ters by decreasing the engine power.
It
is allowed to have not more
than 3 failures within TBO at every gas generator overspeeding >
101%
(2) The power settings and respective operational parameters of the engines
are indicated in Table 2.8.
2-6