Beechcraft C-12C Operator And Technical Reference Manual page 794

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 ➜
IOAT
PRESSURE
ALT
qC
FEET
SL 19
2,000 15
4,000 11
6,000 7
8,000 3
10,000 -1
12,000 -5
14,000 -9
16,000 -12
18,000 -16
20,000 -20
22,000 -24
24,000 -28
26,000 -31
28,000 -35
29,000 -37
31,000 -41
33,000 – – –
35,000 – – –
Figure 7A-85. Maximum Range Power, 1700 RPM, ISA (Sheet 1 of 2)
7A-92
MAXIMUM RANGE POWER
1700 RPM
13,000 POUNDS
OAT
TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
15 81 840
11 77 790
7 74 748
3 70 696
-1 67 656
-5 65 614
-9 63 582
-13 62 554
-17 61 532
-21 60 514
-25 59 500
-29 59 488
-33 60 482
-37 59 464
-41 59 462
-42 60 466
-46 – – – – – –
– – – – – – – – –
– – – – – – – – –
ISA
IAS TAS
TORQUE
ENGINE
KTS KTS
217 218
210 217
204 217
197 216
191 216
186 216
181 216
177 219
173 221
169 223
165 226
162 229
161 235
155 235
153 240
152 243
– – – – – –
– – – – – – – – –
– – – – – – – – –
12,000 POUNDS
IAS
FUEL
PER FLOW
TOTAL
% LB/HR KTS
78 822 214
73 770 207
70 724 201
65 672 193
63 632 188
60 588 182
58 554 177
57 526 172
55 500 167
54 482 163
53 464 160
53 452 157
54 444 155
55 438 154
54 428 150
54 428 148
55 428 146
– – – – – –
– – – – – –
IN
TAS
KTS
215
214
214
211
212
212
212
213
214
216
218
221
227
232
234
236
242
– – –
– – –