Aircraft Powerplant Outer Structures
Aircraft powerplants produces the source of thrust to move
the aircraft through the air, at the same time they are also the source of
vibration, heat and drag forces. Powerplant Structures includes both the
propeller and Engine work in combination to produce thrust. Engine provides the
source of power to rotate the propeller.
Propeller is mounted at the front of the engine converts the rotatory force into Thrust in the engine.
Powerplant Outer Structures components
Nacelles
Nacelles encloses the engine provide the streamline flow
(uniform flow) of air over the outer surface of the engine to improve the
aerodynamics of the aircraft. Protect the engine and its components during
flight. Allow the proper flow air to engine for cooling and combustion.
Fire walls
Firewalls are normally located near to the engine
compartment. Engine, Auxiliary power units, combustion chamber and turbine
produces tremendous amount of heat which affect other aircraft component and it
functionality, to protect other aircraft component from this heat effect
sections of the turbine engine must be isolated from the remainder of the
aircraft by means of firewalls. Firewall is used to protect the nacelle strut
and systems from the exposure.
Engine Mount
Engine mount is frame structures that support the engine and
connect it to the fuselage. Which are designed to distribute the weight of the
engine and distribute torque and vibration generate from the engine.
Cowlings and Fairings
Cowlings and Fairings both are similar, which are removable
covering for covering the portions of the airplane (Engine, Mounts and other
engine components). Design to provide uniform flow of air over the engine
surface improve the aerodynamics of the aircraft.