into mechanical energy to drive compressor

Nickel alloy.

starter blades

all modern jet engines

fir tree root with locking plate

base of the root

allows slight movement

a convergent duct in order to increase velocity

is known as Convection cooling

To ensure equal work done all over the blade length (root to tip)

direct gases in proper angle to first stage turbine nozzle.

Cooling by ceramic coating and bleed air

resulting of thermal stress and high centrifugal force

single structure blades

reduce tip losses and improve efficiency in the cruise.

to reduce vibration and improve air flow.

as its rotational speed increases

film cooling

reduce tip losses