Beechcraft C-12C Operator And Technical Reference Manual page 792

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 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
7A-90
MAXIMUM RANGE POWER
1700 RPM
ISA – 10 qC
13,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
5 80 830
1 76 782
-3 71 728
-7 67 678
-11 64 634
-15 61 590
-19 60 562
-23 58 534
-27 57 514
-31 57 494
-35 56 480
-39 57 470
-43 57 464
-47 58 460
-51 58 452
-52 59 458
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
216 213 76
209 212 72
201 210 67
194 209 63
188 208 60
181 207 57
177 209 55
173 210 53
169 212 52
165 213 51
162 217 50
160 221 50
158 226 51
156 232 52
153 234 53
153 239 53
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C (Sheet 1 of 2)
IN
12,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
810 213 210
760 206 209
704 198 207
656 191 205
610 184 204
566 178 203
536 173 204
506 168 205
482 164 206
460 159 207
442 156 209
430 153 212
426 152 218
422 151 224
420 150 230
420 149 232
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –