Kazan Helicopters Mi-17-1V Flight Manual page 34

M,,-17-1B.Flight manual
2. LIMITATIONS
2.1. Weight limitations
(1) Normal takeoff weight... 11100 kg
(2) Maximum takeoff weight... 13000 kg
(3) Maximum useful load 4000 kg
(4) Maximum external load weight... 3000 kg
Note: The maximum takeoff weight for flying over mountains areas at high
ambient temperatures is determined for the actual ambient conditions
at the take-off field from the graphs included in subsection 1.6, but in
all cases the maximum takeoff weight shall not exceed 13000 kg.
2.2. CG Limitations
(1)Forward CG limit is +300 mm (forward of main rotor rotation axis)
(2) Aft CG limit is -95 mm (aft of main rotor rotation axis)
2.3. Weather limitations
(1) Operation of the helicopter is allowed at ambient temperature within the
range of -50 to +50 "C.
(2) Flying in clouds is allowed at altitude up to 3500 m.
2.4. Performance limitations
(1) It is allowed to climb, to perform horizontal flight, power-on and autorota-
tion glide within the speed range indicated in Table 2.1.
Table 21
lAS limits, km/h
Altitude, m 13000 kg takeoff weioht 11100 ko takeoff weioht
maximum minimum maximum minimum
Uo to 1000 230 60 250
60
2000 195 60 230 60
3000 160
60
210
60
4000 120 60 170 60
4800
100
60
-
60
5000
-
-
130
60
6000
- -
100
80
Notes: 1. At the normal takeoff weight and CG at the aft limit (with the
common center of gravity of cargo aligned with the respective red
arrow at the RH side wall of the cargo compartment) the maximum
flight speed is limited by 240 km/h.
2. At a gross weight exceeding the normal gross weight and with
the negative center of gravity the maximum flight speed in climb is
limited by 220 km/h.
(2) To improve safety of flight it is allowed to perform hovering at altitudes in-
dicated in Table 2.2. At altitudes exceeding those indicated in Table 2.2
hovering is allowed during transportation of external load and due to tac-
tical considerations.
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