Beechcraft C-12C Operator And Technical Reference Manual page 802

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 56
2,000 52
4,000 48
6,000 44
8,000 41
10,000 37
12,000 33
14,000 29
16,000 25
18,000 21
20,000 17
22,000 14
24,000 10
26,000 6
28,000 2
29,000 – – –
31,000 – – –
33,000 – – –
35,000 – – –
Figure 7A-89. Maximum Range Power, 1700 RPM, ISA + 37
7A-100
MAXIMUM RANGE POWER
1700 RPM
ISA + 37 qC
13,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
52 77 840
48 74 790
44 70 740
40 66 694
36 65 656
32 63 620
28 63 592
24 62 568
20 62 548
16 62 534
12 62 522
8 62 512
4 62 498
0 63 496
-4 – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
207 222 73
201 221 68
194 220 65
188 220 63
183 221 61
179 222 59
175 225 58
171 227 57
168 230 56
166 235 55
163 239 55
160 243 55
156 245 57
154 250 57
– – – – – – 58
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C (Sheet 1 of 2)
IN
12,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
814 204 218
760 197 216
714 191 216
670 185 216
632 180 217
594 176 218
564 172 220
538 167 222
516 164 224
496 160 227
482 157 230
470 154 234
468 154 242
458 150 245
456 148 250
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –