15.7 Flashcards
(15 cards)
What are the three components of the exhaust and there ducts
Exhaust cone = divergent duct
Tailpipe = convergent
Exhaust nozzle = convergent
What is the role of the radial struts in the exhaust
Support inner cone
Straighten the swirling exhaust gasses
What ducts are used on the exhaust sub sonic and super sonic aircraft
Subsonic = convergent
Supersonic = convergent divergent
How much does the exhaust increase the amount of thrust
15-20%
10-15% for turbo props
What part of the exhaust forms the divergent duct
The first part of the exhaust nozzle and plug
What is exhaust noise produced by
Violent turbulent exhaust gasses hitting the atmosphere
What are the two types of exhaust noise reduction outlets
Perimeter type
Multi tube type
How does porous skin acoustic lining work
Converts acoustic energy to heat
Clamshell type thrust reversers
Infront of exhaust nozzle
Pnumaticaly operated by compressor bleed air
Has cascade vanes
Low bypass engine
Bucket door
Read of exhaust
Hydraulic operating
Low bypass engine
What a cascade vane and translation screw
Directs are forward of engine (not straight forward to prevent compressor stall and fod ingestion)
Translation prevents fod ingestion
What are thrust reverseses part of
Airframe
Fan reversers
Cascade type reversers with translation sleeves
Pnumatically or hydraulicly operated
High bypass engines
Pivoting door
Fan reverser
Hydraulically operated
Works is fan air only
No cascade vanes or translator sleeves
Where is thrust vectoring found
Military aircraft
