Beechcraft C-12C Operator And Technical Reference Manual page 765

NOTES: IOAT, TORQUE, AND FUEL FLOW BASED ON 12,000 POUNDS.
TO OBTAIN FUEL FLOW PER ENGINE, DIVIDE THE TOTAL FUEL FLOW VALUE FOR THE
CORRESPONDING ALTITUDE BY TWO.
PRESSURE
IOAT OAT
ALT
qC qC
FEET
SL
0 -5
2000
-4 -9
4000
-7 -13
6000
-11 -17
8000
-15 -21
10,000
-19 -25
12,000
-22 -29
14,000
-26 -33
16,000
-30 -37
18,000
-33 -41
20,000 -37 -45
22,000 -41 -49
24,000 -45 -53
26,000 – – – – – –
28,000 – – – – – –
29,000 – – – – – –
31,000 – – – – – –
33,000
– – – – – –
35,000
– – – – – –
NORMAL CRUISE POWER
ISA – 20 qC
TORQUE TOTAL
PER FUEL
ENGINE FLOW
% LB/HR
100 972
100 948
100 922
100 898
100 876
100 856
100 834
100 822
100 810
100 800
96 764
92 726
86 680
– – – – – –
– – – – – –
– – – – – –
– – – – – –
– – – – – –
– – – – – –
Figure 7A-59. Normal Cruise Power, 1800 RPM, ISA – 20
1800 RPM
AIRSPEED
13,000 LB 12,000 LB
IAS TAS IAS
243 236 244
241 240 242
239 245 240
236 249 237
234 254 235
232 259 233
229 264 230
227 269 228
224 274 226
222 280 223
216 281 217
209 281 211
201 279 203
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
TM 1-1510-218-10
~
KNOTS
11,000 LB
TAS IAS TAS
236 244 236
241 243 242
246 241 246
250 238 251
255 236 256
260 234 261
265 231 266
270 230 272
276 227 277
281 225 283
283 219 285
283 213 285
282 205 285
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
q
C
10,000 LB
IAS TAS
244 236
244 243
241 247
239 252
237 257
235 262
232 267
230 273
228 278
226 284
220 286
214 287
207 287
– – –
– – –
– – –
– – –
– – –
– – –
7A-63