B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
244/17
B64C 27/82 (2006.01)
Patent
CA 1331983
ABSTRACT OF THE DISCLOSURE An improved structure for the shrouded propeller tail duct or "ring tail" of a rotary wing aircraft providing rotor torque counteracting and aircraft yaw control forces in all flight conditions of hovering and high speed cruising flight. The rear portion of one lateral side of the shrouded propeller duct comprises a plurality of overlying arcuate segments that are pivotally supported for rotation relative to each other about a vertical axis between a retracted position for high speed flight in which the segments are in a mutually overlying position constituting one side of the duct and an extended position in which. the segments are in a mutually adjoining relationship with their edges only overlapping and extending obliquely transversely of the duct interior in the form of a continuous, rearwardly projecting and transversely extending arcuate extension of the interior wall of one side of the duct. This extendable elbow duct section, in combination with a vertically extending rudder vane comprising a plurality of tandemly arranged sections with pivotal connections to each other for rotation relative to one another about respective axis between a neutral position with the vane sections in alignment and a deflected position with the vane sections angularly arranged relative to each other in the form of an arc extending transversely of the duct forwardly of and congruent with the contour of the fully extended duct segments, provides a propeller slip stream containing and deflecting structure that smoothly deflects the slip stream from the propeller through 90 degrees with minimum turbulence when the aircraft is in a slow speed and hover flight condition.
612925
Gowling Lafleur Henderson Llp
Piasecki Aircraft Corporation
LandOfFree
Rotary wing aircraft shrouded propeller tail assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary wing aircraft shrouded propeller tail assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary wing aircraft shrouded propeller tail assembly will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1313356