Beechcraft C-12C Operator And Technical Reference Manual page 790

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 -1
2,000 -5
4,000 -9
6,000 -13
8,000 -17
10,000 -21
12,000 -25
14,000 -29
16,000 -33
18,000 -37
20,000 -41
22,000 -45
24,000 -49
26,000 – – –
28,000 – – –
29,000 – – –
31,000 – – –
33,000 – – –
35,000 – – –
Figure 7A-83. Maximum Range Power, 1700 RPM, ISA – 20
7A-88
MAXIMUM RANGE POWER
1700 RPM
ISA – 20 qC
13,000 POUNDS
OAT TORQUE FUEL
PER FLOW
ENGINE TOTAL
qC
% LB/HR
-5 77 814
-9 72 758
-13 67 702
-17 63 654
-21 60 612
-25 57 568
-29 56 540
-33 55 514
-37 54 490
-41 53 472
-45 53 465
-49 53 446
-53 54 444
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
IAS TAS TORQUE
PER
ENGINE
KTS KTS %
214 207 74
206 205 67
197 202 63
191 201 59
185 201 56
178 200 53
174 201 52
170 202 50
165 203 49
162 205 48
158 207 47
156 211 47
155 217 48
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
q
C (Sheet 1 of 2)
IN
12,000 POUNDS
FUEL IAS TAS
FLOW
TOTAL
LB/HR KTS KTS
796 211 205
734 202 201
678 194 199
632 187 198
588 181 197
544 175 196
514 170 197
486 166 198
460 161 198
440 157 199
420 152 200
408 150 203
404 149 208
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –