PRESSURE STD AIR
ALTITUDE TEMP
F. C.
SEA LEV
1,000
2,000
3,000
4,000
5,000
6,000
7,000
Y'
)-L
8,000
01
9,000
10,000
11,000
12,000
13,000
14,000
15,000
POWER
SETTING
TABLE
E
>
u
Ei
LYCOMING MODEL
0-540-A,
250
HP NORMALLY ASPIRATED ENGINE
;
8
2
2
2
E
ii'
138
HP
-
55%
RATED
163
HP
-
65%
RATED
188
HP
-
75%
RATED
z
!?!
N
6'
1.
APPROX
10.3
GPH APPROX
12.3
GPH APPROX
14.0
GPH
VI
2
0
"7
-
2.
APPROX
12.0
GPH APPROX
14.0
GPH APPROX
16.0
GPH
m
e
RPM AND
MAN
PRESS RPM AND
MAN
PRESS RPM AND
MAN
PRESS
G
2100 2200 2300 2400 2100 2200 2300 2400 2200 2300 2400
X
g
E
..a
21.6 20.8 20.2 19.6 24.2 23.3 22.6 22.0 25.8 25.1 24.3
21.4 20.6 20.0 19.3 23.9 23.0 22.4 21.8 25.5 24.8 24.1
21.1 20.4 19.7 19.1 23.7 22.8 22.2 21.5 25.3 24.6 23.8
20.9 20.1 19.5 18.9 23.4 22.5 21.9 21.3 25.0 24.3 23.6
20.6 19.9 19.3 18.7 23.1 22.3 21.7 21.0 24.8 24.1 23.3
20.4 19.7 19.1 18.5 22.9 22.0 21.4 20.8 23.8 23.0
20.1 19.5 18.9 18.3 22.6 21.8 21.2 20.6 22.8
19.9 19.2 18.6 18.0 22.3 21.5 21.0 20.4
19.6 19.0 18.4 17.8 21.3 20.7 20.1
19.4 18.8 18.2 17.6 20.5 19.9
19.1 18.6 18.0 17.4 19.6
18.9 18.3 17.8 17.2
18.6 18.1 17.5 17.0
17.9 17.3 16.8
17.1 16.5
16.3
1.)
BEST ECONOMY CRUISE
-
PEAK EGT (FOR LEANEST CYLINDER)
2.)
BEST POWER CRUISE
-
100
DEGREES FAHRENHEIT RICH OF PEAK EGT (FOR LEANEST CYLINDER)
""NOTE
**
2
5
TO MAINTAIN CONSTANT POWER, CORRECT MANIFOLD PRESSURE APPROXIMATELY
0.17
INCH
Hg.
FOR EACH
10
DEGREE
FAHRENHEIT VARIATION IN CARBURETOR AIR TEMPERATURE FROM STANDARD ALTITUDE TEMPERATURE ADD
2,
"
US
MANIFOLD PRESSURE FOR TEMPERATURES ABOVE STANDARD; SUBTRACT FOR TEMPERATURES BELOW STANDARD.
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