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AMBIENT
FILLING
AMBIENT
FILLING
TEMPERATURE
PRESSURE
TEMPERATURE
PRESSURE
of
PSIG
of
PSIG
0
1600
50
1825
10
1650
60
1875
20
1700
70
1925
30
1725
80
1975
40
1775
90
2000
I C:ESSNA ECONoMY
MIXTURE
INDIC:ATOR]
from compression of the oxygen. Because of this, merely filling to 1800
psi will not result in properly filled cylinders. Fill to the pressures in
dicated in table above for the ambient temperature,
IMPORTANT
on,
grease, or other lubricants
in
contact with oxygen
create a serious fire hazard, and such contact must be
avoided when handling oxygen equipment.
CARGO PACK
FLIGHT OPERATION WITH A CARGO PACK.
All flight characteristics for a cargo pack equipped airplane are iden
tical to an airplane without a cargo pack. There is, however, a slight per
formance reduction with the cargo pack installed. This is as follows:
ITEM
DIFFERENTIAL
Top Speed and Cruise Speed. _ _ _ _ _ _ __
3 MPH
Rate of Climb with either both engines
operating or with single engine. _ _ _ _ _ __
15 FPM
Service Ceiling with both engines operating. __
300 Ft.
Service Ceiling with single engine operation. _
450 Ft.
The Cessna Economy Mixture Indicator is an exhaust gas temperature
(EGT) sensing device which visually aids the pilot in obtaining either an
efficient maximum power mixture or a desired cruise mixture. Exhaust
gas temperature varies with cylinder fuel-to-air ratio, power, and RPM.
OPERATING INSTRUCTIONS.
The reference EGT must be known before the EGT indicator can be
used for take-off and climb. Determine the reference EGT periodically
as follows:
(1) Establish 65% power in level flight at 2600 RPM and part throttle.
(2) Carefully lean to peak EGT. This is the reference EGT.
NOTE
Operation at peak EGT is not authorized for continuous
operation, except to establish peak EGT for reference
at 75% power or less. Operation on the lean side of
peak EGT or within 25
0
of peak EGT is not approved.
POWER
fliGHT
EGT
REMARKS
CONDITION
SETTING
----
I----~~ ~
~ ~~-~~ ~
150· to 200·
TAKE-OFF
Full throttle
richer than
AND CLIMB
and 2800 RPM
REFERENCE EGT
125· richer than
24" MP and
NORMAL
CLIMB
2600 RPM
REFERENCE EGT
Use FULL RICH mixture
below 3000"
Above 10,000' use
BEST POWER mixture
BEST POWER mixture,
MAXIMUM CRUISE
Peak minus 100· F
1 MPH TAS increase and
75% or less
(ENRICHEN)
SPEED
8% range loss from
NORMAL LEAN
NORMAL LEAN mixture-
Peak minus 50· F
NORMAL
75% or less
Owner's Manual and Power
(ENRICHEN)
CRUISE
Computer performance
7-17
7-16
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