Device for folding/unfolding a tail boom of a rotorcraft, an associated rotorcraft, and a corresponding folding/unfolding method
US-2016332719-A1 · Nov 17, 2016 · US
Aircraft with thrust vectoring tail
US10112697B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10112697-B2 |
| Application number | US-201615151269-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 10, 2016 |
| Priority date | May 11, 2015 |
| Publication date | Oct 30, 2018 |
| Grant date | Oct 30, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An aircraft is provided and includes an airframe having an upper section and a tail section, a main rotor assembly operably disposed at the upper section and one or more tail rotor assemblies operably disposed at the tail section. The one or more tail rotor assemblies respectively include one or more articulated propellers with thrust vectoring capability that are each independently rotatable about a respective variable rotational axis.
First claim
Opening claim text (preview).
What is claimed is: 1. An aircraft, comprising: an airframe having an upper section and a tail section; a main rotor assembly operably disposed at the upper section and including a main rotor that is rotatable about a rotational axis defined through the airframe; one or more tail rotor assemblies operably disposed on the tail section and respectively including one or more articulated propellers with thrust vectoring capability that are each independently rotatable about a respective variable rotational axis; and not more than one controllable wing extending outwardly from a side of the aircraft. 2. The aircraft according to claim 1 , wherein the main rotor comprises a rigid main rotor system. 3. The aircraft according to claim 1 , wherein blades of the one or more articulated propellers are cyclically and collectively controllable for adjustments of aircraft flight controls. 4. The aircraft according to claim 1 , wherein each of the one or more articulated propellers comprises a hub with at least one of offset flapping hinges, a flexible prop-rotor and a teetering hub. 5. The aircraft according to claim 1 , further comprising a variable speed controller coupled to the one or more articulated propellers. 6. The aircraft according to claim 1 , wherein the controllable wing is pivotable about respective longitudinal axes thereof with one or more locking mechanisms to fix the angles of the controllable wings at specified angles. 7. The aircraft according to claim 1 , wherein the controllable wing comprises at least one of a trailing edge trim tab and an aileron surface. 8. The aircraft according to claim 1 , wherein the controllable wing comprises a segmented wing element. 9. The aircraft according to claim 1 , wherein the one or more articulated propellers are each configured to assume at least one or more of a flat pitch mode, a tail rotor mode and a pusher-propeller mode.
Assignees
Inventors
Classifications
- B64C27/82Primary
characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft · CPC title
- B64C3/42Primary
Adjusting about chordwise axes · CPC title
wherein the rotor or the jet axis is inclined with respect to the longitudinal horizontal or vertical plane of the helicopter · CPC title
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Frequently asked questions
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- What does patent US10112697B2 cover?
- An aircraft is provided and includes an airframe having an upper section and a tail section, a main rotor assembly operably disposed at the upper section and one or more tail rotor assemblies operably disposed at the tail section. The one or more tail rotor assemblies respectively include one or more articulated propellers with thrust vectoring capability that are each independently rotatable a…
- Who is the assignee on this patent?
- Sikorsky Aircraft Corp
- What technology area does this patent fall under?
- Primary CPC classification B64C27/82. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 30 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).