Cruise - Titan 340CC Operation Manual

4 Depending on the airplane, transition at the proper speed to climb attitude.
5 Throttle: REDUCE TO 2500 RPM WHEN ACCEPTABLE CLIMB ESTABLISHED
6 Airspeed: MAINTAIN ADEQUATE FOR ENGINE COOLING
NOTE: These engines have been designed to cool adequately with airflow
sufficient to provide a minimum of 6.5 inches of water pressure drop from
above the cylinders to below

3.5 Cruise

1 Power: MAINTAIN CLIMB POWER UNTIL CHOSEN ALTITUDE ESTABLISHED
2 Throttle: REDUCE MANIFOLD PRESSURE TO CRUISE SETTING (See figure 4.3 for
recommended cruise power settings).
3 Mixture (With EGT Gauge): The mixture should be slowly but deliberately leaned to
establish peak EGT if a gauge is available. The mixture should then be adjusted to
provide smooth operation at the desired cruise power setting.
4 Mixture (Without an EGT Gauge): The mixture should be slowly but deliberately
leaned until engine roughness is noted. The mixture should then be enriched until
the engine returns to smooth operation. The cylinder head temperatures should be
monitored to ensure proper fuel/air mixture.
5
Carburetor Heat: The use of carburetor heat may be required to prevent the
formation of ice on the air throttle valve if the air temperature is between 20 and
90 ºF and the humidity is high.
NOTE: There are some that advocate operating on the lean side of peak EGT.
Although theoretically acceptable, it is generally not possible to operate lean-
of-peak with an engine using a carburetor.
6 After cruise power and mixture have been set, allow the engine to
stabilize and monitor manifold pressure, RPM, and engine temperatures.
NOTE: There are many operating and physical parameters that can affect
engine life and airworthiness. Some of the physical parameters cannot always
be checked or monitored. One of the best ways to monitor engine health is to
have Cylinder Head Temperature (CHT) probes in each cylinder head. An EGT
gauge is also very useful, but more so for fuel injected engines.
Operation Manual for AEC TITAN 340CC ASTM Certified Engine | 11
®