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You are here: home->amp->K02->K.8.4.5.6.A.1

8456
The purpose of directing bleed air to the outer turbine case on some engines is to
A) allow operation in a thermal environment 600 to 800 �F above the temperature limits of turbine blade and vane alloys.
*B) provide optimum turbine blade tip clearance by controlling thermal expansion.
C) provide up to 100 percent kinetic energy extraction from the flowing gases.

 

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