Textron Inc.
Bondable Cooling Fin Arrays for Use on Aircraft Gearboxes

Abstract:

A rotorcraft includes a fuselage with at least one rotor assembly coupled thereto. A drivetrain provides rotational energy to the rotor assembly. The drivetrain includes an engine and a gearbox having a gearbox housing. A gearbox cooling fin array including a plurality of cooling fins is bonded to the gearbox housing with a thermal interface material. The gearbox cooling fin array is configured to dissipate heat generated by the gearbox during operation of the rotorcraft.