The part shown in the illustration would be located between which of the following components of a modern geared turbine main propulsion unit? Illustration SE-0001

Correct Answer: Option D — Between the rotors and high-speed pinions of the high pressure and low pressure turbines.

Flexible gear couplings are installed between the turbine rotors and the high-speed pinions to absorb axial expansion and slight angular misalignments arising from high operating temperatures in high-pressure and low-pressure propulsion turbines.