MD Helicopters MILVIZ MD530F, Rotorcraft Flight Manual, Page: 165 / 326

<<<< Allison 250
−
C18 >>>>
FAA Approved
Revision 5
5
−
23
CSP
−
HE/HS
−
1
Performance Data
MD 500
(Models 369HE/HS/HM) ROTORCRAFT FLIGHT MANUAL
P
R
E
S
S
U
R
E
A
L
T
IT
U
D
E
−
M
E
T
E
R
S
P
R
E
S
S
U
R
E
A
L
T
IT
U
D
E
−
F
E
E
T
THIS CHART BASED ON CABIN HEAT, ENGINE
ANTI−ICE OFF,
ELECTRICAL LOAD 15 AMPERES, APPLICABLE TO 369H8094
REDUCE WEIGHT CAPABILITIES LBS AS FOLLOWS
ENGINE AIR INLET SCREEN,
250−C18 ENGINE
PRESSURE CABIN ANTI
−
BOTH
REDUCE HOVER WEIGHT CAPABILITY
1. 33 LB WITH PARTICLE SEPARATOR
2. 33 LB WITH SCAVENGE AIR ON
3. 11 LB WITH ENGINE AIR INLET SCREEN 369H8086
ALT, FT
SEA LEVEL
TO
1000
15000
HEAT
125
105
ICE
155
130 290
240
20,000
18,000
4. 50 LB WITH MAIN ROTOR ABRASION TAPE
INSTALLED
20000 85 105 195
INCREASE (OR DECREASE
WEIGHT
CAPABILITY LBS
(ABOVE CRITICAL ALTITUDE)
PER 10 AMPERE REDUCTION
(OR
OAT °C INCR
−
E
5
ASE
1
)
5 35
IN
6,000
ELECT
W
R
T
ICAL LOA
2
D
5 7
16,000
14,000
12,000
10,000
5,000
4,000
3,000
8,000
6,000
4,000
2,000
GROSS WEIGHTS ABOVE
2550 LB MUST BE EXTERNAL
AND JETTISONABLE
2,000
1,000
0
−
40
−
30
−
20
0
−
10 0 10 20 30 40
AMBIENT TEMPERATURE
−
DEGREES C