Beechcraft C-12C Operator And Technical Reference Manual page 793

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 9
2,000 5
4,000 1
6,000 -3
8,000 -7
10,000 -11
12,000 -15
14,000 -19
16,000 -23
18,000 -27
20,000 -31
22,000 -34
24,000 -38
26,000 -42
28,000 -46
29,000 -48
31,000 – – –
33,000 – – –
35,000 – – –
Figure 7A-84. Maximum Range Power, 1700 RPM, ISA – 10
MAXIMUM RANGE POWER
1700 RPM
ISA – 10 qC
11,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
5 73 790
1 68 740
-3 62 682
-7 59 632
-11 55 586
-15 52 542
-19 51 510
-23 49 480
-27 47 454
-31 45 428
-35 44 408
-39 44 394
-43 45 388
-47 46 384
-51 47 382
-52 48 384
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
210 207 69
203 206 64
194 203 59
187 201 55
181 200 52
174 199 49
169 200 47
164 200 44
159 200 42
154 200 40
150 201 39
147 204 38
146 209 39
145 215 40
144 221 41
144 224 41
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C (Sheet 2 of 2)
TM 1-1510-218-10
IN
10,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
774 207 205
720 200 203
660 190 199
612 184 198
566 177 197
520 171 196
488 166 196
456 160 195
428 155 195
400 149 194
378 145 194
360 141 196
352 140 200
346 138 206
344 137 211
344 137 214
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
7A-91