Beechcraft C-12C Operator And Technical Reference Manual page 654

TM 1-1510-218-10
NOTE: TO OBTAIN FUEL FLOW PER ENGINE, DIVIDE THE TOTAL FUEL FLOW VALUE FOR THE
CORRESPONDING ALTITUDE BY TWO.
PRESSURE IOAT
ALT
qC
FEET
SL -10
-14
2,000
4,000 -18
6,000 -21
-25
8,000
10,000 -39
12,000 -33
14,000 -36
16,000 -40
18,000 -44
20,000 – – –
22,000 – – –
24,000 – – –
26,000 – – –
– – –
28,000
29,000 – – –
31,000 – – –
33,000 – – –
35,000 – – –
Figure 7-38. Recommended Cruise Power, 1700 RPM, ISA – 30
7-42
RECOMMENDED CRUISE POWER
1700 RPM
ISA – 30 qC
OAT TORQUE FUEL FLOW
PER TOTAL
ENGINE
qC
% LB/HR
-15 100 788
-19 100 904
-23 100 880
-27 100 858
-31 100 838
-35 100 820
-39 100 806
-43 100 794
-47 100 786
-51 100 778
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
AIRSPEED ~ KNOTS
@12,000 LB @11,000 LB
IAS TAS IAS
241 229 242
239 233 239
236 237 237
234 242 235
232 246 233
230 251 231
227 256 228
225 261 226
223 266 224
220 271 221
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
@10,000 LB
TAS IAS TAS
230 243 231
234 240 235
238 238 239
243 236 244
248 234 249
252 232 253
257 229 258
262 227 263
268 225 269
273 223 274
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C