Flight control system and method for a rotary wing aircraft, enabling it to maintain either track or heading depending on its forward speed
US-2015375850-A1 · Dec 31, 2015 · US
Method of controlling the wing flaps and horizontal stabilizer of a hybrid helicopter
US9150307B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9150307-B2 |
| Application number | US-201313895700-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 16, 2013 |
| Priority date | May 21, 2012 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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Abstract
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A method of controlling a high speed rotary wing aircraft ( 1 ) comprising: a fuselage ( 2 ); at least one main rotor ( 3 ); at least one variable pitch propulsive propeller ( 4 ); at least two half-wings ( 11, 11 ′) positioned on either side of said fuselage ( 2 ); at least one horizontal stabilizer ( 20 ) provided with a movable surface ( 21, 21 ′); and at least one power plant driving said main rotor ( 3 ) and each propulsive propeller ( 4 ) in rotation. Said method serves to adjust the lift of said half-wings ( 11, 11 ′) and the lift of the horizontal stabilizer ( 20 ) so that the collective pitch of said blades ( 31 ) of said main rotor ( 3 ) is equal to a setpoint collective pitch, so that the longitudinal cyclic pitch of said blades ( 31 ) of said main rotor ( 3 ) is equal to a setpoint longitudinal cyclic pitch, and so that the lateral cyclic pitch of said blades ( 31 ) of said main rotor ( 3 ) is equal to a setpoint lateral cyclic pitch during a stabilized stage of flight.
First claim
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What is claimed is: 1. A method of controlling a high speed rotary wing aircraft, the aircraft comprising: a fuselage; at least one main rotor having a plurality of blades; at least one variable pitch propulsive propeller; at least two half-wings positioned on either side of the fuselage; at least one horizontal stabilizer positioned at one end of the aircraft, the horizontal stabilizer having at least one movable surface; and at least one power plant driving the main ro…
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- What does patent US9150307B2 cover?
- A method of controlling a high speed rotary wing aircraft ( 1 ) comprising: a fuselage ( 2 ); at least one main rotor ( 3 ); at least one variable pitch propulsive propeller ( 4 ); at least two half-wings ( 11, 11 ′) positioned on either side of said fuselage ( 2 ); at least one horizontal stabilizer ( 20 ) provided with a movable surface ( 21, 21 ′); and at least one power plant driving said m…
- Who is the assignee on this patent?
- Airbus Helicopters
- What technology area does this patent fall under?
- Primary CPC classification B64C27/57. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 06 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).