MD Helicopters 369E, Rotorcraft Flight Manual

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CSP − E − 1
Additional Operations
and Performance Data
ROTORCRAFT FLIGHT MANUAL
MD 500E
(Model 369E)
Revision 14
8 − 1
SECTION VIII
ADDITIONAL OPERATIONS AND
PERFORMANCE DATA
8 − 1. HOVER CEILING − OUT OF GROUND EFFECT (OGE)
Select the appropriate hover performance chart for the engine
(Rolls Royce 250 − C20B or 250 − C20R/2) and/or optional equipment
installed.
Description:
The hover ceiling chart shows the maximum hover weight capability, out of
ground
effect (OGE), at take off power for known conditions of pressure alti-
tude and outside air temperature, or alternately, the maximum hover ceiling
for a known gross weight and outside air temperature.
The hover ceiling vs gross weight charts are based on:
1. Takeoff power at 103% N
2
2. Cabin heat and engine anti−ice OFF
3. Electrical load of 10 amps
4. Wind less than 3 knots
Use of chart:
To determine OGE hover performance, refer to Section V, Hover Ceiling
(IGE), ‘‘Use of chart’’.
NOTE
: Aircraft with 4 − bladed tail rotors:
Pilots should be aware that the IGE directional controllability tests have
demonstrated that the two − bladed tail rotor has more margin than the
four − bladed tail rotor. OGE directional controllability in winds greater than 3
knots has not been determined for either tail rotor configuration.
CAUTION