Beechcraft C-12C Operator And Technical Reference Manual page 655

NOTE: TO OBTAIN FUEL FLOW PER ENGINE, DIVIDE THE TOTAL FUEL FLOW VALUE FOR THE
CORRESPONDING ALTITUDE BY TWO.
PRESSURE IOAT OAT TORQUE
ALT
qC
FEET
SL 0
-4
2,000
4,000 -8 -13
6,000 -11 -17
-15 -21
8,000
10,000 -19 -25
12,000 -23 -29
14,000 -26 -33
16,000 -30 -37
18,000 -34 -41
20,000 -38 -45
22,000 -42 -48
24,000 -46 -50
26,000 – – – – – –
– – – – – –
28,000
29,000 – – – – – –
31,000 – – – – – –
33,000 – – – – – –
35,000 – – – – – –
Figure 7-39. Recommended Cruise Power, 1700 RPM, ISA – 20
RECOMMENDED CRUISE POWER
1700 RPM
ISA – 20 qC
FUEL FLOW
PER TOTAL
ENGINE
qC
% LB/HR
-5 100 934
-9 100 906
100 880
100 858
100 840
100 824
100 808
100 796
100 788
100 782
95 740
88 692
82 642
– – – – – –
– – – – – –
– – – – – –
– – – – – –
– – – – – –
– – – – – –
AIRSPEED ~ KNOTS
@12,000 LB @11,000 LB
IAS TAS IAS
239 232 240
237 236 238
235 240 236
232 245 233
230 250 231
228 254 229
225 259 226
223 264 224
221 270 222
218 275 219
211 274 212
202 272 204
194 269 196
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
TM 1-1510-218-10
@10,000 LB
TAS IAS TAS
233 241 233
237 239 238
241 236 242
246 234 247
251 232 252
255 230 257
261 227 262
266 225 267
271 223 272
276 220 278
276 214 278
274 206 277
272 198 275
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C
7-43