Tài liệu The engine is the beating heart of the airplane 88

The engine is the beating heart of the airplane 88 (8 pages)
Engine Operations

Do you know what to do if the engine burps and
coughs during the runup, or runs rough during cruise?
In-depth systems knowledge can give you the tools
needed to assess the engine’s actual condition.
Aircraft engines are extremely reliable when properly
cared for, and can deliver years of safe flight. That being
said, not all pilots know as much as they should about
the proper care and maintenance of engines, or that
mechanical failure accounts for 15 to 20 percent of all
accidents. Knowing how to manage a powerplant helps
you fly more safely and can minimize the cost of flying.
Whether the aircraft you fly is equipped with a sophisticated
engine monitoring system or not, a basic understanding
of how engines work is required to correctly
diagnose potential engine problems. For all engines air
is drawn into the engine, mixes with fuel, burns at a
controlled rate and expands, pushing on a piston that
turns the crankshaft and propeller.
Most piston aircraft engines develop power with four
cycles, or strokes, of each piston inside a cylinder. The
four cycles are intake, compression, power, and exhaust.
Cockpit engine controls, usually the throttle, prop control
and mixture, allow a pilot to extract the most efficient
performance from the engine and ensure safe and
reliable operation.