Jet Propulsion/Structures

The structure transfers the forces generated by the Jet engine to the vehicle and provides internal support for the components.


Externally mounted jet engines are enclosed in nacelles that provide the necessary aerodynamic and structural characteristics.

Access doorsEdit

Thrust reversing flaps and vanesEdit

Noise abatementEdit


The pylon connects the nacelle to the body or wing of the airplane. The pylons may include structural fuses to release the nacelle if the jet engines forces exceed pre determined thresholds to reduce damage to the aircraft.


Service forcesEdit

TO Cruise Landing

Failure forcesEdit

Turbine failure Fan blade failure Bird Impact Out of balance

Structural fusesEdit

Airframe integrationEdit

Wing pylonsEdit

Wing rootEdit

Tail PylonsEdit

Fin mountEdit

Tail cone mountEdit

Fuselage mountEdit

Pressure vesselsEdit

Drum designEdit


Axial, Radial




Clearance controlEdit


Bleed airEdit


The containment structure is usually designed to retain failed blades that detach from the rotor at high speeds. Rotor disks are much more massive than blades and full failures normally cannot be contained in aircraft applications.

Fan containmentEdit

Turbine containmentEdit

Disk containmentEdit