Vehicle

1. Telescopically extendable tail for a flying vehicle comprising:

at least one tail beam comprising a first tubular tail segment; and

a second tail segment disposed within the first tubular tail segment and axially slideable in an inward direction and in an outward direction;

the tail beam being provided with at least two form-closing coupling members located at an axial distance from each other for providing a force-transferring coupling between the second tail segment and the first tubular tail segment in an extended state of the second tail segment;

wherein each of the form-closing coupling members are capable of transferring torque and transverse forces;

wherein each of the form-closing coupling members coming into engagement by axial displacement of the second tail segment in the outward direction;

wherein one of the form-closing coupling members comprise two internal toothed rings, and the other one of the form-closing coupling members comprise two external toothed rings; and

wherein the most inward one of the internal toothed rings has an inner diameter larger than an outer diameter of the most outward one of the external toothed rings.

2. Tail according to claim 1 , wherein the first tubular tail segment is provided with the two internal toothed rings located at a first mutual axial distance;

wherein the second tail segment is provided with the two external toothed rings located at a second mutual axial distance substantially equal to the first mutual axial distance;

wherein both internal toothed rings of the first tubular tail segment have teeth directed in the inward direction; and

wherein both external toothed rings of the second tail segment have teeth directed in the outward direction.

3. Tail according to claim 2 , wherein the most outward one of the internal toothed rings of the first tubular tail segment has an inner diameter substantially equal to an outer diameter of the second tail segment; and

wherein the most inward one of the external toothed rings of the second tail segment has an outer diameter substantially equal to an inner diameter of the first tubular tail segment.

4. Tail according to claim 1 further comprising a blocking means for blocking the second tail segment in its extended state.

5. Tail according to claim 4 , the blocking means comprising a transverse blocking pen to be inserted transversely into the first tubular tail segment.

6. Flying vehicle comprising a tail according to claim 1 .

7. Vehicle being convertible between a flying condition and an automotive riding condition, the vehicle comprising:

a tail according to claim 1 ;

wherein in the flying condition the tail is extended while in the automotive riding condition the tail is retracted.

8. Telescopically extendable tail for a flying vehicle comprising:

at least one tail beam, the tail beam comprising a first tubular tail segment and a second tail segment disposed within the first tubular tail segment and axially slideable in an inward direction and in an outward direction;

the tail beam being provided with a first form-closing coupling member for providing a force-transferring coupling between the second tail segment and the first tubular tail segment in an extended state of the second tail segment;

wherein the first form-closing coupling member is capable of transferring torque and transverse forces; and

wherein the first form-closing coupling member comes into engagement by axial displacement of the second tail segment in the outward direction;

the tail beam being provided with a second form-closing coupling member for providing a force-transferring coupling between the second tail segment and the first tubular tail segment in an extended state of the second tail segment;

wherein the second form-closing coupling member is capable of transferring torque and transverse forces; and

wherein the second form-closing coupling member comes into engagement by axial displacement of the second tail segment in the outward direction;

wherein the two form-closing coupling members are located at an axial distance from each other;

wherein the first form-closing coupling member comprises two internal toothed rings, and the second form-closing coupling member comprises two external toothed rings; and

wherein the most inward one of the internal toothed rings has an inner diameter larger than an outer diameter of the most outward one of the external toothed rings.

9. Vehicle being convertible between a flying condition and an automotive riding condition, the vehicle comprising:

a tail according to claim 8 ;

wherein in the flying condition the tail is extended while in the automotive riding condition the tail is retracted.

10. Telescopically extendable tail according to claim 8 , wherein the internal toothed rings have teeth directed in the inward direction; and

wherein the external toothed rings have teeth directed in the outward direction.

11. Telescopically extendable tail according to claim 8 , wherein the most outward one of the internal toothed rings has an inner diameter substantially equal to an outer diameter of the second tail segment; and

wherein the most inward one of the external toothed rings has an outer diameter substantially equal to an inner diameter of the first tubular tail segment.

12. Telescopically extendable tail according to claim 8 further comprising a blocking means for blocking the second tail segment in its extended state.

13. Telescopically extendable tail according to claim 12 , wherein the blocking means comprises a transverse blocking pen inserted transversely into the first tubular tail segment.

14. Telescopically extendable tail for a flying vehicle comprising:

at least one tail beam, the tail beam comprising a first tubular tail segment and a second tail segment disposed within the first tubular tail segment and axially slideable in an inward direction and in an outward direction;

the tail beam being provided with a first form-closing coupling member for providing a force-transferring coupling between the second tail segment and the first tubular tail segment in an extended state of the second tail segment;

wherein the first form-closing coupling member is capable of transferring torque and transverse forces;

wherein the first form-closing coupling member comprises a first coupling element attached to the first tubular tail segment and a second coupling element attached to the second tail segment; and

wherein the first coupling element and the second coupling element of the first form-closing coupling member come into engagement with each other by axial displacement of the second tail segment in the outward direction;

the tail beam being provided with a second form-closing coupling member for providing a force-transferring coupling between the second tail segment and the first tubular tail segment in an extended state of the second tail segment;

wherein the second form-closing coupling member is capable of transferring torque and transverse forces;

wherein the second form-closing coupling member comprises a first coupling element attached to the first tubular tail segment and a second coupling element attached to the second tail segment; and

wherein the first coupling element and the second coupling element of the second form-closing coupling member come into engagement with each other by axial displacement of the second tail segment in the outward direction;

wherein the two form-closing coupling members are located at an axial distance from each other;

wherein each of the first and second coupling elements of the first form-closing coupling member comprise an internal toothed ring, and each of the first and second coupling elements of the second form-closing coupling member comprise an external toothed rings; and

wherein the most inward one of the internal toothed rings has an inner diameter larger than an outer diameter of the most outward one of the external toothed rings.

15. Vehicle being convertible between a flying condition and an automotive riding condition, the vehicle comprising:

a tail according to claim 14 ;

wherein in the flying condition the tail is extended while in the automotive riding condition the tail is retracted.

16. Telescopically extendable tail according to claim 14 , wherein the internal toothed rings have teeth directed in the inward direction; and

wherein the external toothed rings have teeth directed in the outward direction.

17. Telescopically extendable tail according to claim 14 , wherein the most outward one of the internal toothed rings has an inner diameter substantially equal to an outer diameter of the second tail segment; and

wherein the most inward one of the external toothed rings has an outer diameter substantially equal to an inner diameter of the first tubular tail segment.

18. Telescopically extendable tail according to claim 14 further comprising a blocking means for blocking the second tail segment in its extended state.

19. Telescopically extendable tail according to claim 18 , wherein the blocking means comprises a transverse blocking pen inserted transversely into the first tubular tail segment.