Apparatus for providing rail-based vertical short takeoff and landing and operational control

1. A vertical short takeoff and landing (VSTOL) apparatus, the VSTOL apparatus comprising:

a fuselage;

a plurality of radially disposed airfoils;

a rail structure configured to remain substantially static in a first plane, the rail structure comprising two peripheral surfaces each formed into a substantially circular shape; and

a mounting structure disposed concentric with the rail structure, the mounting structure having a ring-like shape and configured to engage the at least one peripheral surface of the rail structure via a first plurality of roller apparatus mounted on said mounting structure so as to allow rotation of the mounting structure relative to the rail structure within the first plane;

wherein:

the mounting structure further comprises the plurality of radially disposed airfoils whose at least pitch is controllable while the mounting structure rotates relative to the rail structure during flight of the VSTOL apparatus;

the mounting structure comprises a second plurality of roller apparatus; and

the mounting structure is configured to engage (i) a first of the two peripheral surfaces of the rail structure via the first plurality of roller apparatus, and (ii) a second of the two peripheral surfaces via the second plurality of roller apparatus.

2. The VSTOL apparatus of claim 1 , wherein the mounting structure is captured relative to the rail structure within both a first dimension and a second dimension, the first dimension comprising a dimension normal to the first plane, and the second dimension comprising a dimension within the first plane.

3. The VSTOL apparatus of claim 2 , wherein the mounting structure comprises a second plurality of roller apparatus, the second plurality of roller apparatus configured to engage a movable ring structure of the rail structure, the moveable ring structure configured to translate in a direction substantially parallel to an axis of rotation of the mounting structure, the second plurality of roller apparatus further configured to translate at least partly coincident with the translation of movable ring so as to cause a change in said pitch of at least a portion of said plurality of airfoils.

4. The VSTOL apparatus of claim 1 , wherein the first plurality of roller apparatus each comprise rollers comprises a groove formed therein, the groove configured to provide said engagement of the at least one peripheral surface of the rail structure so as to retain said mounting structure and said ring structure in relative alignment in a dimension normal to a plane of said rotation.

5. A vertical short takeoff and landing (VSTOL) system, the VSTOL system comprising:

a fuselage;

a plurality of airfoils;

a first apparatus comprising two peripheral surfaces each formed into a substantially circular shape, a first one of the two peripheral surfaces comprising an outer surface, the outer surface forming the substantially circular shape; and

a second apparatus concentric with the first apparatus and comprising:

a ring structure configured to be operatively coupled to at least one motive power source;

a plurality of airfoil apparatus disposed on an outer periphery of the ring structure and operative to generate lift for the VSTOL apparatus when the plurality of airfoils are moved through air;

a first plurality of passive roller apparatus; and

a second plurality of passive roller apparatus;

wherein the first plurality of passive roller apparatus are configured to engage the outer surface of the first one of the two peripheral surfaces of the first apparatus so as to allow rotation of the second apparatus relative to the first apparatus, and the second plurality of passive roller apparatus are configured to engage a surface of a second one of the two peripheral surfaces of the first apparatus; and

wherein the first and second plurality of passive roller apparatus provide no motive force.

6. The VSTOL system of claim 5 , wherein the outer surface is disposed on an outer surface of the first apparatus, and the outer surface and the first plurality of roller apparatus cooperate to retain the first apparatus and the second apparatus in relative alignment.

7. The VSTOL system of claim 5 , wherein the outer surface is supported by at least an internal support apparatus of the first apparatus such that the outer surface does not distort unacceptably under inward normal forces exerted by one or more of the first plurality of roller apparatus during flight of the VSTOL apparatus.

8. The VSTOL system of claim 5 , further comprising at least one control apparatus; and

wherein each of the plurality of airfoils are configured to articulate between two or more positions based at least in part on actuation by the at least one control apparatus.

9. The VSTOL system of claim 5 , wherein each of the plurality of airfoils is further configured to be articulated independently of others of the plurality of airfoil apparatus.

10. A vertical short takeoff and landing (VSTOL) apparatus, comprising:

a fuselage;

a first structure configured to remain substantially static in a first plane, the first structure comprising a plurality of peripheral surfaces each formed into a substantially circular shape; and

a second structure disposed concentric with the first structure, the second structure having at least:

a plurality of radially disposed airfoils whose at least pitch is controllable while the second structure rotates relative to the first structure during flight of the VSTOL apparatus; and

a ring-like shape and configured to engage a first of the plurality of peripheral surfaces of the first structure via a first plurality of roller apparatus so as to allow rotation of the second structure relative to the first structure within the first plane, the first plurality of roller apparatus each comprising rollers having a groove formed therein, the groove configured to provide said engagement of the first of the plurality of peripheral surfaces of the first structure so as to retain said second apparatus and said first apparatus in relative alignment in a dimension normal to a plane of said rotation;

wherein:

the second structure is captured relative to the first structure within both a first dimension and a second dimension, the first dimension comprising a dimension normal to the first plane, and the second dimension comprising a dimension within the first plane;

the second structure and the plurality of radially disposed airfoils are driven for said rotation by at least one motive source, the motive source mounted to the first structure and having an output coupled only to the second structure; and

the second structure is further configured to engage a second of the plurality of peripheral surfaces of the first structure via a second plurality of roller apparatus.