Aerially distributable communications device

1. An aerially distributable communications device for aerial deployment as a node of a communications network, the aerially distributable communications device including:

a. a gyrochute including at least one or more set of blades, wherein the at least one or more set of blades includes an autorotation portion that is configured for inducing autorotation of the gyrochute, and wherein the pitch of the autorotation portion is configured with an angle of attack below the horizontal; and

b. a communications module configured for wireless communication with external communication nodes,

wherein the blades of the set of blades at least partly define an aerofoil shape along their length, and the pitch of the aerofoil shape is variable along the length of the blade.

2. The aerially distributable communications device as claimed in claim 1 , wherein the gyrochute includes a body, the body including a hub and a hollow formation extending around the outside of the at least one or more set of blades.

3. The aerially distributable communications device as claimed in claim 2 , wherein the blades are connected to each other at the hub.

4. The aerially distributable communications device as claimed in claim 2 , wherein the hollow formation is a cylindrical formation, and the at least one or more set of blades are rigidly connected to the cylindrical formation.

5. The aerially distributable communications device as claimed in claim 4 , wherein the cylindrical formation includes an annular flange extending outwardly from an upper edge of the cylindrical formation, and the vertices of the cylindrical formation curve into the annular flange at a curved upper surface.

6. The aerially distributable communications device as claimed in claim 5 , wherein the annular flange includes a curved lower surface and the curved upper surface of the annular flange is configured for inducing a main column of airflow flowing upwardly through the cylindrical formation, to flow radially outwardly over the curved upper surface in use to induce lift force.

7. The aerially distributable communications device as claimed in claim 1 , wherein at least one of the set of blades includes a planar extended trailing edge portion.

8. The aerially distributable communications device as claimed in claim 7 , wherein the trailing edge extends substantially horizontally.

9. The aerially distributable communications device as claimed in claim 1 , wherein the pitch of the autorotation portion is variable.

10. The aerially distributable communications device as claimed in claim 1 , wherein the gyrochute includes a first blade set comprising a plurality of primarily lift force inducing blades attached at a hub, and a second blade set comprising a plurality of primarily rotation inducing blades.

11. The aerially distributable communications device as claimed in claim 1 , wherein at least one or more blades of the at least one or more blade sets are foldable blades.

12. The aerially distributable communications device as claimed in claim 1 , wherein at least one or more blades of the at least one or more blade sets are configured to be removably connectable to the body by a connector arrangement.

13. The aerially distributable communications device as claimed in claim 1 , further including a controller, and wherein the controller includes at least one or more selected from:

a. digital storage media for storing data and software instructions;

b. a processor operatively connected to the digital storage media and configured for being directed by software instructions, wherein the digital storage media is configured with software instructions for directing operation of the processor;

c. a transceiver; and

d. at least one or more sensors.

14. The aerially distributable communications device as claimed in claim 1 , further including a water purification device.

15. The aerially distributable communications device as claimed in claim 1 , further including a dehumidifier and a storage tank for storing water generated by the dehumidifier.

16. The aerially distributable communications device as claimed in claim 1 , wherein the aerially distributable communications device includes a power generation arrangement, a power storage arrangement and a power outlet.

17. The aerially distributable communications device as claimed in claim 1 , wherein the aerially distributable communications device includes a heat shield for shielding one or more selected from the gyrochute and the communications module on re-entry into an atmosphere in use.

18. A communication network comprising:

one or more aerially distributed communication devices each including:

a. a gyrochute including at least one or more set of blades, wherein the at least one or more set of blades includes an autorotation portion that is configured for inducing autorotation of the gyrochute, and wherein the pitch of the autorotation portion is configured with an angle of attack below the horizontal; and

b. a communications module configured for wireless communication with external communication nodes,

wherein the blades of the set of blades at least partly define an aerofoil shape along their length, and the pitch of the aerofoil shape is variable along the length of the blade.

19. A method of deploying communications nodes, the method comprising:

a. providing at least one or more aerially distributable communication devices each including:

i. a gyrochute including at least one or more set of blades, wherein the at least one or more set of blades includes an autorotation portion that is configured for inducing autorotation of the gyrochute, and wherein the pitch of the autorotation portion is configured with an angle of attack below the horizontal; and

ii. a communications module configured for wireless communication with external communication nodes,

wherein the blades of the set of blades at least partly define an aerofoil shape along their length, and the pitch of the aerofoil shape is variable along the length of the blade; and

b. deploying the at least one or more aerially distributable communication devices from an aircraft and/or spacecraft.