公开(公告)号：US20190337629A1

公开(公告)日：2019-11-07

申请号：US15967831

申请日：2018-05-01

Applicant: Bell Helicopter Textron Inc.

Inventor： Colton James GILLILAND ,  Mark Alan PRZYBYLA ,  Eric Stephen OLSON

IPC: B64D27/02 ,  B64D27/10 ,  B64D27/24 ,  B64C29/00

Abstract: An exemplary tiltrotor aircraft with a hybrid drive system includes a first propulsion system having a first engine and a first supplemental driver operably coupled to a first proprotor that is operable between a helicopter mode and an airplane mode and a second propulsion system having a second engine and a second supplemental driver operably coupled to a second proprotor that is operable between a helicopter mode and an airplane mode.