Abstract: Method for inspecting and/or manipulating a beam at a lower side of a roof or deck, the beam including a strip, the method comprising the steps of: providing an unmanned aerial vehicle, UAV, wherein the UAV comprises a body, a number of rotors, a first arm; and an inspection and/or manipulation tool; while the first arm is in the first position, flying the UAV towards the beam; when the UAV contacts the beam, moving the first arm from the first position to the second position such that the end of the first arm is moved to a position vertically above the strip; reduce the propulsion force until the UAV hangs from the beam with the end of the arm in contact with and supported by the strip; and inspecting and/or manipulating the beam, using the inspection and/or manipulation tool, while the UAV hangs from the beam.

Abstract: Disclosed is an unmanned aerial vehicle adapted to be positioned against a substantially vertical wall while hovering in the air, including a body and rotors, an arm end, a first leg end and a second leg end intersected by a front plane and adapted for together contacting the wall at three spaced apart positions, the front plane intersecting a vertical axis of the UAV at an upper side of a first plane spanned by a lateral and longitudinal axis of the UAV, the front plane extending at a first angle of between 45 to 85 degrees to the first plane; wherein the UAV is adapted for tilting upon contact of the first and second leg ends with the wall while the arm end approaches the wall, about the first and second leg ends and towards the wall, until the arm end contacts the wall.

Abstract: Method for inspecting and/or manipulating a beam at a lower side of a roof or deck, the beam including a strip, the method comprising the steps of: providing an unmanned aerial vehicle, UAV, wherein the UAV comprises a body, a number of rotors, a first arm; and an inspection and/or manipulation tool; while the first arm is in the first position, flying the UAV towards the beam; when the UAV contacts the beam, moving the first arm from the first position to the second position such that the end of the first arm is moved to a position vertically above the strip; reduce the propulsion force until the UAV hangs from the beam with the end of the arm in contact with and supported by the strip; and inspecting and/or manipulating the beam, using the inspection and/or manipulation tool, while the UAV hangs from the beam.

Abstract: Disclosed is an unmanned aerial vehicle adapted to be positioned against a substantially vertical wall while hovering in the air, including a body and rotors, an arm end, a first leg end and a second leg end intersected by a front plane and adapted for together contacting the wall at three spaced apart positions, the front plane intersecting a vertical axis of the UAV at an upper side of a first plane spanned by a lateral and longitudinal axis of the UAV, the front plane extending at a first angle of between 45 to 85 degrees to the first plane; wherein the UAV is adapted for tilting upon contact of the first and second leg ends with the wall while the arm end approaches the wall, about the first and second leg ends and towards the wall, until the arm end contacts the wall.