Optional Equipment
Emergency Floats
CSP–520N–1
MD 520N (500N) ROTORCRAFT FLIGHT MANUAL
TM
Original
9–18
FAA Approved
EMER FLOATS–INFLATED
V
NE
IAS (KNOTS)
OAT
PRESS ALT X 1000
GROSS WT = 1949 TO 3350 LBS
°
C
0
2
4
6
8
10
12
14
16
18
–30
98
91
77
–20
100
94
84
–10
101
97
91
77
0
100
94
85
10
97
91
78
20
95
86
30
98
92
79
NO FLIGHT
40
95
87
45
100
94
84
FOR AUTOROTATION V
NE
REDUCE SPEED BY 22 KTS
(85K MIN); DO NOT EXCEED CHART V
NE
Figure 9–6. V
NE
Placard
PART III
EMERGENCY AND
MALFUNCTION PROCEDURES
EMERGENCY FLOAT INFLATION
If emergency occurs at airspeeds greater than maximum
permissible float inflation speed, i.e., 81 knots IAS at less than 6,000
feet altitude, 77 knots IAS at 6,000 feet altitude and above, reduce
speed to an appropriate value prior to float inflation. Do not exceed
airspeed limits of the EMERGENCY FLOATS INFLATED V
NE
placard.
NOTE
:
Inflations have been demonstrated up to 89 knots IAS in autorotation and in
powered flight.
Procedures:
F
Check float circuit breaker IN.
F
Actuate float inflation switch. (Only momentary switch actuation is re"
quired.)
CAUTION
