Aircraft Engines 2 min read
SPECIFIC ACTION OF STRESSES
You need to understand the stresses encountered on the main parts of an aircraft. A knowledge of the basic stresses…
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Construction and Materials
Gears The spur gears of the external or auxiliary gearbox gear train (fig. 7-4 and 7-5) are mounted between bearings…
Aircraft Engines 3 min read
External & Auxiliary gearbox
External Gearbox The external gearbox contains the drives for the accessories, the drive from the starter and provides a mounting…
Aircraft Engines 3 min read
Radial driveshaft
The purpose of a radial driveshaft is to transmit the drive from the internal gearbox to an accessory unit or…
Aircraft Engines 3 min read
Accessory drives
Accessory units provide the power for aircraft hydraulic, pneumatic and electrical systems in addition to providing various pumps and control…
Aircraft Engines 5 min read
Exhaust Gas Flow
Gas from the engine turbine enters the exhaust system at velocities from 750 to 1,200 feet per second, but, because…
Aircraft Engines 2 min read
Exhaust system
Aero gas turbine engines have an exhaust system which passes the turbine discharge gases to atmosphere at a velocity, and…
Aircraft Engines 3 min read
Turbine blades
A brief mention of some of the points to be considered in connection with turbine blade design will give an…
Aircraft Engines 2 min read
Compressor-Turbine Matching
The flow characteristics of the turbine must be very carefully matched with those of the compressor to obtain the maximum…
Aircraft Engines 1 min read
Contra-rotating turbine
Fig. 5-10 shows a twelve stage contra-rotating free power turbine driving a contra-rotating rear fan. This design has only one…
Aircraft Engines 2 min read
Turbine blades
The turbine blades are of an aerofoil shape, designed to provide passages between adjacent blades that give a steady acceleration…
Aircraft Engines 1 min read
Nozzle guide vanes
The nozzle guide vanes are of an aerofoil shape with the passage between adjacent vanes forming a convergent duct. The…