公开(公告)号：US11072419B2

公开(公告)日：2021-07-27

申请号：US16532347

申请日：2019-08-05

Applicant: Textron Innovations Inc.

Inventor： Mark Loring Isaac ,  James Everett Kooiman ,  Charles David Hogue

IPC: B64C25/12 ,  B64C25/34 ,  B64C25/20 ,  B64C27/82 ,  B64C29/00 ,  B64C27/06

Abstract: A retractable landing gear system configured to contour an aircraft fuselage includes a landing wheel having an axle, a wheel rotation strut assembly coupling the landing wheel to the aircraft fuselage and an actuation strut assembly configured to move the wheel rotation strut assembly between various positions including a deployed position and a stowed position. The axle of the landing wheel is pivotably coupled to a distal end of the wheel rotation strut assembly and configured to pivot relative to the wheel rotation strut assembly as the actuation strut assembly moves the wheel rotation strut assembly between the deployed and stowed positions such that the landing wheel generally contours the aircraft fuselage when the wheel rotation strut assembly is in the stowed position.

公开(公告)号：US10752352B2

公开(公告)日：2020-08-25

申请号：US15834340

申请日：2017-12-07

Applicant: Textron Innovations Inc.

Inventor： Albert G. Brand ,  Mark Loring Isaac ,  Frank Bradley Stamps ,  Russell Lee Mueller

IPC: B64C29/00 ,  B64C11/28 ,  B64C27/54 ,  B64C11/48 ,  B64C27/28 ,  B64C27/30 ,  B64D35/06 ,  F16H48/10

Abstract: A dual rotor propulsion system for a tiltrotor aircraft having VTOL and forward flight modes. The dual rotor propulsion system includes an engine operable to provide an input torque to a transmission that, responsive thereto, generates an output torque. A first output shaft is coupled to the transmission and is operable to receive a first portion of the output torque. A first rotor assembly is coupled to and rotatable with the first output shaft. A second output shaft is coupled to the transmission and is operable to receive a second portion of the output torque. A second rotor assembly is coupled to and rotatable with the second output shaft. In operation, the first and second rotor assemblies rotate coaxially, the first rotor assembly is a different diameter than the second rotor assembly and the first rotor assembly is stoppable and foldable in the forward flight mode.

公开(公告)号：US10696391B2

公开(公告)日：2020-06-30

申请号：US15815411

申请日：2017-11-16

Applicant: Textron Innovations Inc.

Inventor： Alan Carl Ewing ,  Eric Ricardo Gonzalez ,  Mark Loring Isaac ,  Frank Bradley Stamps

IPC: B64C29/00 ,  G05D1/08 ,  B64C27/28 ,  B64C27/26 ,  B64C27/08 ,  B64C27/30 ,  B64C39/08 ,  G05D1/00 ,  B64C11/28

Abstract: A quad tiltrotor aircraft has a longitudinally extending fuselage with forward and aft stations. A forward wing having first and second outboard ends extends laterally from the forward station. An aft wing having first and second outboard ends extends laterally from the aft station. First and second forward rotors are respectively coupled proximate the first and second outboard ends of the forward wing and are tiltable relative to the forward wing between vertical lift and forward thrust orientations. First and second aft rotors are respectively coupled proximate the first and second outboard ends of the aft wing and are tiltable relative to the aft wing between vertical lift and forward thrust orientations. The forward rotors are higher disk-loading rotors than the aft rotors. The aft rotors are foldable in the forward flight mode to provide extended range for the quad tiltrotor aircraft.