METHODS AND APPARATUS FOR VERTICAL SHORT TAKEOFF AND LANDING AND OPERATIONAL CONTROL
Methods and apparatus for vertical or short takeoff and landing, and operational control during flight. In one embodiment, the apparatus comprises two or more counter driven rings with one or more airfoils attached. In one variant, there is an upper ring and a lower ring, each with multiple airfoils attached. In one variant, lift is generated largely via ambient air currents, allowing for long term on-station operation of the device. In another variant, a fuselage (or parts thereof) of the apparatus can be independently controlled, including for example as to attitude relative to other components of the craft.
1 . A vertical short takeoff and landing (VSTOL) apparatus, comprising:
a fuselage;
a fuselage ring coupled at two or more connection points with the fuselage;
a plurality of airfoils;
a power ring coupled to respective ones of the plurality of airfoils; and
a control ring that is communicatively coupled with respective ones of the plurality of airfoils;
wherein the fuselage is configured to rotate with respect to the fuselage ring.
2 . The VSTOL apparatus of claim 1 , wherein the two or more connection points consist of two connection points.
3 . The VSTOL apparatus of claim 2 , wherein the two connection points are configured to enable the fuselage to independently rotate with respect to the fuselage ring, the power ring and the control ring.
4 . The VSTOL apparatus of claim 1 , wherein the two or more connection points comprise two or more dynamic connections with the fuselage, the two or more dynamic connections configured to enable out-of-plane movement of the fuselage with respect to the fuselage ring.
5 . The VSTOL apparatus of claim 1 , further comprising a tether apparatus coupled to the fuselage, the tether apparatus configured to enable one or more of a power source for the VSTOL apparatus, a communications payload for the VSTOL apparatus and VSTOL operators for the VSTOL apparatus to be located remote from the fuselage.
6 . The VSTOL apparatus of claim 1 , wherein the power ring comprises a plurality of undulations, the plurality of undulations configured to be driven by one or more gear sprockets.
7 . The VSTOL apparatus of claim 6 , further comprising an additional power ring that also comprises a plurality of additional undulations.
8 . The VSTOL apparatus of claim 7 , wherein a single gear sprocket is configured to drive both the power ring and the additional power ring in a substantially counter-rotating fashion.
9 . The VSTOL apparatus of claim 1 , further comprising an articulation system, the articulation system comprising:
an articulation cam comprising a power rod configured to couple with the power ring and a control rod configured to couple with the control ring; and
a guide slot resident within the control ring, the control rod configured to traverse the guide slot;
wherein the articulation cam is configured to rotate with respect to the power rod, the rotation of the articulation cam configured to articulate the control ring with respect to the power ring.
10 . The VSTOL apparatus of claim 1 , wherein the power ring comprises a pair of power rings and the control ring comprises a pair of control rings and the VSTOL apparatus further comprises an articulation system, the articulation system comprising:
a control arm that is sandwiched between a pair of control wheels; and
a groove is positioned within each of the pair of control rings, respective ones of the pair of control wheels positioned within respective ones of the control ring grooves;
wherein a separation of the pair of control wheels with respect to one another is configured to articulate respective ones of the pair of control rings.
11 . The VSTOL apparatus of claim 1 , wherein the power ring is configured to rotate with respect to the control ring and the VSTOL apparatus further comprises an articulation system, the articulation system comprising:
a power rod that couples an airfoil to the power ring;
a control cam arm that is coupled with the airfoil and a swivel wheel mount; and
a control ring guide located on the control ring, the control ring guide configured to receive the swivel wheel mount;
wherein an articulation of the control ring is configured to articulate the airfoil via the control cam arm.
12 . The VSTOL apparatus of claim 1 , wherein the power ring is configured to rotate with respect to the control ring and the VSTOL apparatus further comprises an articulation system, the articulation system comprising:
a single control cam arm comprised of a swivel wheel mount, the single control cam arm configured to be coupled with an airfoil, the single control cam arm further configured to be received within the power ring via a bearing;
wherein an articulation of the control ring is configured to articulate the airfoil via the single control cam arm.
13 . The VSTOL apparatus of claim 12 , wherein the swivel wheel mount comprises at least two wheels, the at least two wheels providing for additional stabilization during articulation.
14 . The VSTOL apparatus of claim 1 , wherein the power ring comprises a pair of power rings and the VSTOL apparatus further comprises an articulation system, the articulation system comprising:
an articulation rod coupled to a pair of power ring wheels, each of the power ring wheels of the pair configured to interface with a respective power ring of the pair at a top surface thereof; and
a control ring arm that is coupled to a control ring wheel, the control ring arm disposed between the pair of power ring wheels, the control ring wheel configured to interface with the control ring at a top surface thereof;
wherein articulation of the articulation rod is configured to articulate the control ring with respect to the pair of power rings thereby articulating one or more of the plurality of airfoils.