Aircraft

• US 20090250549A1
• Filed: 03/31/2007
• Published: 10/08/2009
• Est. Priority Date: 06/26/2006
• Status: Active Grant

• Current Assignee: Nordic Unmanned As
• Original Assignee: Burkhard Wiggerich
• Inventors: Wiggerich, Burkhard
• Granted Patent: US 8,328,128 B2
• Time in Patent Office: Days
• US Class Current: 244/17.110
• CPC Class Codes: B64U 10/16 with five or more distinct rotor axes, e.g. octocopters
• CPC Class Codes: B64U 10/80 UAVs characterised by their small size, e.g. micro air vehicles [MAV]
• CPC Class Codes: B64U 2101/70 for use inside enclosed spaces, e.g. in buildings or in vehicles
• CPC Class Codes: B64U 30/24 Coaxial rotors
• CPC Class Codes: B64U 30/299 Rotor guards ducted or shrouded rotors B64U30/26; guards used as ground propulsion B64U60/60
• CPC Class Codes: B64U 50/19 using electrically powered motors

Abstract

An aircraft includes at least three drive units, each of which has a first rotor and a first, rotary speed-controlled electrical motor, suitable for driving the first rotor during operation of the aircraft. Each of the drive units has at least a second rotor and at least one second, rotary speed-controlled electrical motor, suitable for driving the second rotor during operation of the aircraft in a rotational direction that is opposite to the rotational direction of the first rotor of each drive unit. Autonomous means for controlling the location and position of the aircraft are also provided.

Claims