Beechcraft C-12C Operator And Technical Reference Manual page 789

NOTES: DURING OPERATION WITH ICE VANES EXTENDED, TORQUE WILL DECREASE.
ORDER TO MAINTAIN MAXIMUM RANGE CONFIGURATION, DO NOT RESET POWER TO
ORIGINAL SETTING. FUEL FLOW WILL REMAIN ABOUT THE SAME, BUT TRUE AIRSPEED
WILL BE REDUCED APPROXIMATELY 10 KNOTS.
TO OBTAIN FUEL FLOW PER ENGINE, DIVIDE THE TOTAL FUEL FLOW VALUE FOR THE
CORRESPONDING ALTITUDE BY TWO.
WEIGHT ➜
PRESSURE IOAT
ALT
qC
FEET
SL -11
2,000 -15
4,000 -20
6,000 -24
8,000 -28
10,000 -32
12,000 -35
14,000 -39
16,000 -43
18,000 -47
20,000 – – –
22,000 – – –
24,000 – – –
26,000 – – –
28,000 – – –
29,000 – – –
31,000 – – –
33,000 – – –
35,000 – – –
Figure 7A-82. Maximum Range Power, 1700 RPM, ISA – 30
MAXIMUM RANGE POWER
1700 RPM
ISA – 30 qC
11,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
-15 66 734
-19 61 694
-23 55 632
-27 51 580
-31 48 534
-35 45 492
-39 43 458
-43 41 428
-47 39 402
-51 38 376
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IAS TAS TORQUE
PER
ENGINE
KTS KTS %
205 195 63
197 192 57
188 189 51
180 187 47
173 185 43
167 184 40
162 184 38
156 183 35
152 183 34
146 182 31
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q
C (Sheet 2 of 2)
TM 1-1510-218-10
IN
10,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
736 203 193
672 194 190
612 184 186
556 176 183
510 169 180
466 162 179
430 157 178
398 150 176
368 145 175
338 138 172
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7A-87