Beechcraft C-12C Operator And Technical Reference Manual page 801

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 49
2,000 45
4,000 41
6,000 37
8,000 34
10,000 30
12,000 26
14,000 22
16,000 18
18,000 14
20,000 10
22,000 6
24,000 3
26,000 -1
28,000 -5
29,000 -7
31,000 -11
33,000 – – –
35,000 – – –
Figure 7A-88. 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
45 67 780
41 65 736
37 63 700
33 62 664
29 60 626
25 58 588
21 57 556
17 56 528
13 55 504
9 54 484
5 54 468
1 53 450
-3 51 428
-7 50 410
-11 52 418
-12 52 414
-16 52 410
– – – – – – – – –
– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
200 211 64
195 212 62
191 214 61
187 216 60
183 218 58
178 219 56
174 221 55
170 223 53
166 225 52
163 228 51
159 231 49
156 233 48
150 232 48
144 232 47
146 244 45
144 244 46
140 247 47
– – – – – – – – –
– – – – – – – – –
q
C (Sheet 2 of 2)
TM 1-1510-218-10
IN
10,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
766 198 209
724 194 211
688 190 213
652 187 216
614 183 218
574 178 218
544 174 220
516 169 222
490 166 224
466 161 226
444 156 226
424 152 228
408 149 231
392 144 232
374 139 231
376 139 236
376 138 243
– – – – – – – – –
– – – – – – – – –
7A-99