Reactionless free-spinning motor with dual propellers

1. A system, comprising:

a first propeller;

a second propeller;

an electromagnetic field emitter that is coupled to the first propeller;

an electromagnetic field receptor that is coupled to the second propeller, wherein the electromagnetic field emitter emits an electromagnetic field and in response to the electromagnetic field:

the electromagnetic field receptor and the second propeller rotate in a first rotational direction; and

the electromagnetic field emitter and the first propeller rotate in a second and counter-rotational direction; and

at least one of the following:

a first mechanical coupling that mechanically reorients a direction of rotation between the electromagnetic field receptor and the second propeller such that the first propeller and the second propeller are not co-axial; or

a second mechanical coupling that mechanically reorients a direction of rotation between the electromagnetic field emitter and the first propeller such that the first propeller and the second propeller are not co-axial.

2. The system recited in claim 1 , wherein:

the system is included in a vertical takeoff and landing vehicle; and

the first propeller and the second propeller rotate about a substantially vertical axis of rotation.

3. The system recited in claim 1 , wherein:

the system is included in a vehicle that takes off and lands using wing-borne flight; and

the first propeller and the second propeller rotate about a substantially longitudinal axis of rotation.

4. The system recited in claim 1 , wherein the first propeller and the second propeller rotate in one or more planes that are above a top of a fuselage.

5. The system recited in claim 1 , wherein the first propeller has a first blade length and the second propeller has a second blade length that is not equal to the first blade length.

6. The system recited in claim 1 , wherein the first propeller has a first blade pitch setting and the second propeller has a second blade pitch setting that is not equal to the first blade pitch setting.

7. The system recited in claim 1 , wherein:

the first propeller has a shorter blade length than the second propeller; and

the first propeller has a higher blade pitch setting than second propeller.

8. A method, comprising:

providing a first propeller;

providing a second propeller;

providing an electromagnetic field emitter that is coupled to the first propeller;

providing an electromagnetic field receptor that is coupled to the second propeller, wherein the electromagnetic field emitter emits an electromagnetic field and in response to the electromagnetic field:

the electromagnetic field receptor and the second propeller rotate in a first rotational direction; and

the electromagnetic field emitter and the first propeller rotate in a second and counter-rotational direction; and

providing at least one of the following:

a first mechanical coupling that mechanically reorients a direction of rotation between the electromagnetic field receptor and the second propeller such that the first propeller and the second propeller are not co-axial; or

a second mechanical coupling that mechanically reorients a direction of rotation between the electromagnetic field emitter and the first propeller such that the first propeller and the second propeller are not co-axial.

9. The method recited in claim 8 , wherein:

the method is performed by a vertical takeoff and landing vehicle; and

the first propeller and the second propeller rotate about a substantially vertical axis of rotation.

10. The method recited in claim 8 , wherein:

the method is performed by a vehicle that takes off and lands using wing-borne flight; and

the first propeller and the second propeller rotate about a substantially longitudinal axis of rotation.

11. The method recited in claim 8 , wherein the first propeller and the second propeller rotate in one or more planes that are above a top of a fuselage.

12. The method recited in claim 8 , wherein the first propeller has a first blade length and the second propeller has a second blade length that is not equal to the first blade length.

13. The method recited in claim 8 , wherein the first propeller has a first blade pitch setting and the second propeller has a second blade pitch setting that is not equal to the first blade pitch setting.

14. The method recited in claim 8 , wherein:

the first propeller has a shorter blade length than the second propeller; and

the first propeller has a higher blade pitch setting than second propeller.