VTOL vehicle with coaxially tilted or tiltable rotors
First Claim
1. A VTOL vehicle comprising a pivotably mounted forward rotor, a pivotably mounted aft rotor and a fuselage, the forward and aft rotors secured to said fuselage and lying on a longitudinal axis of the vehicle, with the fuselage located axially between the forward and aft rotors, the vehicle having an in-flight configuration wherein the forward rotor is tilted downwardly about a pivot axis located at an aft end of the forward rotor at a negative tilt angle relative to said fuselage, and the aft rotor is tilted upwardly about a pivot axis located at a forward end of the aft rotor at a positive tilt angle relative to said fuselage.
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Accused Products
Abstract
A VTOL vehicle includes a forward rotor, an aft rotor and a fuselage, the forward and aft rotor lying in a longitudinal axis of the vehicle, with the fuselage located axially between the forward and aft rotors. The vehicle has an in-flight configuration wherein the forward rotor is tilted downwardly at a negative tilt angle relative to the fuselage and the aft rotor is tilted upwardly at a positive tilt angle relative to the fuselage.
239 Citations
9 Claims
- 1. A VTOL vehicle comprising a pivotably mounted forward rotor, a pivotably mounted aft rotor and a fuselage, the forward and aft rotors secured to said fuselage and lying on a longitudinal axis of the vehicle, with the fuselage located axially between the forward and aft rotors, the vehicle having an in-flight configuration wherein the forward rotor is tilted downwardly about a pivot axis located at an aft end of the forward rotor at a negative tilt angle relative to said fuselage, and the aft rotor is tilted upwardly about a pivot axis located at a forward end of the aft rotor at a positive tilt angle relative to said fuselage.
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8. A VTOL vehicle comprising a forward rotor mounted in a forward duct, an aft rotor mounted in an aft duct, and a fuselage;
- the forward and aft rotors lying on a longitudinal axis of the vehicle, with the fuselage located axially between the forward and aft ducts, said forward and aft ducts pivotably mounted to said fuselage at respective pivot axes located at an aft end of said forward duct and a forward end of said aft duct, respectively, for movement from a first position where said forward and aft rotors lie in a common reference plane substantially parallel to the ground for lift-off and hover, to another position where said forward and aft rotors are tilted relative to said fuselage and said reference plane for forward flight, each of said forward and aft ducts provided with a plurality of adjustable control vanes extending across at least an inlet end thereof, said adjustable control vanes oriented substantially parallel to said longitudinal axis of the vehicle.
- View Dependent Claims (9)
Specification