MD Helicopters MD900 with PW206E, Flight Manual

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CSP–900RFM206E–1
Limitations
ROTORCRAFT FLIGHT MANUAL
MD900 With PW 206E
FAA Approved
Original
2–3
Critical wind azimuth in hover:
Above 5000 feet density altitude, hovering operations in winds above 15 knots
from the critical azimuth (120
°
to 135
°
) are to be avoided (Ref. Figure 2−2).
16000
14000
12000
10000
8000
6000
4000
2000
0
4000 4500 5000 5500 6000
GROSS WEIGHT − LBS
DENSITY
AL
TITUDE − FEET
120 °
135 °
270 °
190 °
80 °
A
CONTROLLABILITY ENVELOPE FOR CROSSWIND CONDITIONS
F92–009
15300
15 KTS
17 KTS
17 KTS
CRITICAL AZIMUTH
B
B
HOVER IGE OPERATION
POSSIBLE IN CALM WINDS OR
WINDS OUTSIDE THE CRITICAL
AZIMUTH ZONE (SEE FIGURE
BELOW)
6250
HOVER IGE OPERATION IN
WINDS IN EXCESS OF 17 KNOTS
HAS BEEN DEMONSTRATED
FOR ALL AZIMUTHS
HOVER IGE OPERATION
LIMITED TO 15 KNOTS WHEN
WIND IS FROM CRITICAL
AZIMUTH AREA ‘A’ OR 17 KNOTS
WHEN WIND IS FROM AREA ‘B’
(SEE FIGURE BELOW).
0 °
Figure 2–2. Controllability Envelope and Critical Azimuth For Crosswind Operations