Beechcraft C-12C Operator And Technical Reference Manual page 788

TM 1-1510-218-10
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
7A-86
MAXIMUM RANGE POWER
1700 RPM
ISA – 30 qC
13,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
-15 73 788
-19 67 730
-23 63 674
-27 59 628
-31 56 584
-35 54 546
-39 53 516
-43 51 490
-47 50 468
-51 50 446
– – – – – – – – –
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– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
210 200 69
201 197 64
194 195 59
187 194 55
181 193 52
175 193 49
171 194 48
167 194 46
163 196 45
158 197 44
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q
C (Sheet 1 of 2)
IN
12,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
768 207 197
710 199 195
654 191 192
604 184 191
560 177 189
520 171 189
488 167 189
460 162 189
436 158 190
412 153 190
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