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 B — Between the rotors and high-speed pinions of the high pressure and low pressure turbines.

Gear-type flexible couplings are positioned between turbine rotors and high-speed pinions to absorb differential thermal expansion and minor misalignments generated between the high-temperature steam turbine casings and the rigidly mounted reduction gear housing.