Beechcraft C-12C Operator And Technical Reference Manual page 742

TM 1-1510-218-10
NOTE: 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
FEET
SL 10
2000 6
4000 3
6000 -1
8000 -5 -11
10,000 -9 -15
12,000 -12 -19
14,000 -16 -23
16,000 -20 -27
18,000 -24 -31
20,000 -27 -35
22,000 -31 -39
24,000 -35 -43
26,000 -40 -47
28,000 -44 -51
29,000 -46 -52
31,000 – – – – – –
33,000 – – – – – –
35,000 – – – – – –
7A-40
NORMAL CRUISE POWER
TORQUE TOTAL
PER FUEL
ENGINE FLOW
qC
% LB/HR
5 100 940
1 100 914
-3 100 888
-7 100 862
100 840
100 818
100 800
100 786
100 776
100 768
96 734
92 698
86 652
80 606
74 558
71 534
– – – – – –
– – – – – –
– – – – – –
Figure 7A-36. Normal Cruise Power, 1700 RPM, ISA – 10
1700 RPM
ISA – 10 qC
AIRSPEED
13,000 LB 12,000 LB
IAS TAS IAS
236 233 237
234 238 235
232 242 233
229 247 231
227 251 228
225 256 226
222 261 223
220 266 221
217 271 218
214 276 216
208 276 210
201 276 203
193 274 195
184 270 187
174 265 177
168 261 172
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
~
KNOTS
11,000 LB 10,000 LB
TAS IAS TAS IAS
234 238 235 239
239 236 240 237
243 234 244 235
248 232 249 232
253 229 254 230
257 227 259 228
262 225 264 226
268 222 269 223
273 220 274 222
278 217 279 218
279 211 281 213
279 205 281 207
277 197 280 199
274 189 278 191
270 180 275 183
267 176 272 179
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
q
C
TAS
236
240
245
250
255
260
265
270
276
281
283
284
283
281
278
277
– – –
– – –
– – –