Beechcraft C-12C Operator And Technical Reference Manual page 800

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 ➜
PRESSURE IOAT
ALT
qC
FEET
SL 49
2,000 45
4,000 41
6,000 37
8,000 34
10,000 30
12,000 26
14,000 22
16,000 18
18,000 14
20,000 10
22,000 6
24,000 3
26,000 -1
28,000 -5
29,000 – – –
31,000 – – –
33,000 – – –
35,000 – – –
Figure 7A-88. Maximum Range Power, 1700 RPM, ISA + 30
7A-98
MAXIMUM RANGE POWER
1700 RPM
ISA + 30 qC
13,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
45 75 820
41 70 768
37 68 726
33 66 690
29 64 650
25 62 612
21 61 582
17 60 556
13 60 536
9 60 518
5 59 504
1 60 498
-3 62 498
-7 61 486
-11 – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
205 217 70
198 215 67
193 216 65
189 218 64
184 219 62
179 19 60
174 221 59
170 223 57
167 226 56
163 229 56
160 232 56
159 238 55
158 245 55
153 246 57
– – – – – – 56
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C (Sheet 1 of 2)
IN
12,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
798 202 214
750 196 213
710 192 215
674 188 217
636 183 218
596 178 219
566 174 220
538 169 221
514 165 224
496 162 227
480 159 230
464 155 232
452 151 235
456 152 244
448 148 246
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –