1. A method of maintaining a flying electric generator with one or more rotors within a defined airspace comprising:
- determining a desired position for said generator;
- determining an observed position of said generator using one or more Global Positioning Receivers;
- generating one or more error signals defining the difference between the observed position of said generator and the desired position for said generator; and
- altering the thrust vector of one or more rotors of said generator in response to said error signals to move said generator towards said desired position if necessary.
2. The method of claim 1 wherein said one or more rotors have one or more blades; and
- the thrust vector of at least one of said rotors of said generator is altered by collective pitch control of said one or more blades.
3. The method of claim 1 wherein said generator has at least two rotors;
- each rotor has at least one blade; and
- the thrust vector of at least one of said rotors of said generator is altered by differential collective pitch control of said one or more blades.
4. The method of claim 1 wherein said generator has at least two rotors.
5. A method of maintaining a flying electric generator with at least one tether within a defined airspace comprising:
- determining a desired position for said generator;
- determining an observed position of said generator using one or more Global Positioning Receivers;
- generating one or more error signals defining the difference between the observed position of said generator and the desired position for said generator; and
- adjusting the length of said at least one tether to move said generator towards said desired position for said generator if necessary.
6. The method of claim 5 further comprising altering the thrust vector of one or more rotors of said generator in response to said one or more error signals to move said generator towards said desired position if necessary.
7. The method of claim 6 wherein said one or more rotors have one or more blades; and
- the thrust vector of at least one of said rotors of said generator is altered by collective pitch control of said one or more blades.
8. The method of claim 6 wherein said generator has at least two rotors;
- each rotor has at least one blade; and
- the thrust vector of at least one of said rotors of said generator is altered by differential collective pitch control of said one or more blades.