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Modular flying vehicle

  • US 9,108,728 B2
  • Filed: 06/03/2013
  • Issued: 08/18/2015
  • Est. Priority Date: 02/16/2007
  • Status: Expired due to Fees
First Claim
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1. A method of operating a flight vehicle having a plurality of propellers and an airframe, wherein the airframe has an airframe front and defines an airframe plane, comprising:

  • positioning each of the plurality of propellers with a tilt angle of approximately zero with respect to the airframe plane;

    providing power to all of the plurality of motors, wherein the power is sufficient to lift the air vehicle off of the ground so the vehicle is airborne;

    with the vehicle airborne, maintaining or increasing power to a first propeller subset comprising one or more of the plurality of motors;

    with the vehicle airborne, reducing power to a second propeller subset comprising one or more of the plurality of motors, while simultaneously;

    with power reduced or eliminated to the second propeller subset, tilting one or more of the propellers of the second propeller subset forward with respect to the airframe front to a tilt angle of between 60 and 95 degrees;

    with the one or more of the propellers of the second propeller subset tilted forward with respect to the airframe front to a tilt angle of between 60 and 95 degrees, increasing power to the second propeller subset.

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