Specifications

[P-51D Mustang]
DCS
EAGLE DYNAMICS
81
PROPELLER CONTROL LEVER. The Propeller Control lever is used to set the propeller RPM. The
propeller governor is designed to maintain 1800 RPM at the low setting and 3000 RPM at the high
setting. The governor automatically adjusts the propeller pitch to maintain the set RPM. High RPM
settings are used when maximum performance is desired, such as takeoff or combat, while lower
RPM settings are used to maximize fuel economy and engine wear during less demanding flight
stages. For standard MP and RPM settings, consult the engine ratings chart.
MIXURE CONTROL LEVER. The Mixture Control lever is used to set the fuel/air mixture. On earlier
aircraft, the lever has four possible positions: IDLE CUTOFF, AUTO LEAN, AUTO RICH, and FULL
RICH. On later aircraft, the AUTO LEAN and AUTO RICH positions have been replaced by a single
RUN position.
 IDLE CUTOFF. The IDLE CUTOFF position is used when starting and stopping the engine. This
position should be set after the engine is stopped to ensure that no fuel is allowed to enter the
carburetor while the engine is not running.
 AUTO LEAN/RUN. The AUTO LEAN position is best used for cruise engine settings to maximize
fuel economy and flight range. On later model aircraft, the AUTO LEAN position is replaced with
the RUN position.
 AUTO RICH/RUN. The AUTO RICH position is the standard operating setting for the engine
and is normally used for takeoff, climb, landing, and combat. On later model aircraft, the AUTO
RICH position is replaced with the RUN position.
 FULL RICH. The FULL RICH position is an emergency setting to be used only in case of
carburetor failure to ensure a sufficient fuel supply to the engine.