The disclosure provides a blocking door (160) that is pivotally disposed on a fixed nacelle (137, 139) of a tiltrotor aircraft (101) for pivoting between a stowed position (S) when a proprotor pylon (115, 117) is in the substantially horizontal position and a protective blocking position (B) in front of the proprotor pylon (115, 117) when the proprotor pylon (115, 117) is positioned in the non-horizontal position. In other aspects, there is provided a method of reducing infrared and/or radar signatures of rotorcraft with a rotatable proprotor (116, 118).
TILTROTOR AIRCRAFT WITH BLOCKING DOOR FOR PROPROTOR PYLON
KIPPROTORFLUGZEUG MIT BLOCKIERENDEN TÜR FÜR PROPROTOR-PYLON
AÉRONEF À ROTOR ORIENTABLE AVEC PORTE BLOQUANTE POUR PYLON DE PROPROTOR
2020-03-25
Patent
Electronic Resource
English