Engine Description
Teled
y
ne Con
tinental Moto
rs, Inc.
TM
2-40
IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Absolute Dry Manifold Pressure (in. Hg)
C
o
rr
ected
B
rake
H
o
rsep
o
w
er
TO DETERMINE ACTUAL HP
1. Locate RPM & Pm on Altitude Chart (Pt. A)
2. Locate RPM & Pm on Sea Lev el Chart (Pt. B)
3. Transfer "B" to Sea Lev el on Altitude Chart (Pt. C)
4. Draw line "Y" from "C" through "A"
5. Locate Pt. "D" at ambient Pressure Altitude
6. Draw v ertical line through "Z" through "D"
7. Read HP from intersection of "Y" and "Z"
Correct HP for inlet air:
Add 1% for each 10° below standard altitude temp (Ts)
Subtract 1% for each 10° abov e Ts
Note: Speed lines in consecutive
100 RPM steps.
Figure 2-26.
IOF-550-B and C Sea Level Performance