An unmanned aerial vehicle , UAV, adapted to be positioned against a substantially vertical wall while hovering in the air, the vehicle defining a longitudinal axis (a2), a lateral axis (a3) and a vertical axis (a1), the longitudinal axis and the lateral axis together spanning a first plane (RP) having an upper side and an oppositely facing lower side , the vehicle comprising: a body and a number of rotors supported by said body, the rotors being adapted for together exerting a propulsion force (F p ) on the vehicle in an upward substantially vertical direction; an arm attached to the body and comprising an arm end arranged at a distal end of the arm away from the body ; characterised by : one or more legs rotation fixedly attached to the body and comprising a first leg end and a second leg end , wherein the leg ends are arranged at distal ends of the one or more legs away from the body and below the arm end when the rotors exert the propulsion force on the vehicle in the upward substantially vertical direction; wherein the arm end , the first leg end and the second leg end are intersected by a front plane (FP) and are adapted for together contacting the wall at three spaced apart positions, said front plane (FP) intersecting the vertical axis at the upper side of the first plane (RP) and extending at a first angle (α) of between 45 to 85 degrees to the first plane (RP); and wherein the body, the rotors, the arm end and leg ends are adapted for tilting in conjunction, upon contact of the first and second leg ends with the substantially vertical wall while the first and second leg ends are arranged along a substantially horizontal line and while the arm end approaches the wall, about the first and second leg ends and towards the wall, until the arm end contacts the substantially vertical wall. a body and a number of rotors supported by said body, the rotors being adapted for together exerting a propulsion force (F p ) on the vehicle in an upward substantially vertical direction; an arm attached to the body and comprising an arm end arranged at a distal end of the arm away from the body ; characterised by : one or more legs rotation fixedly attached to the body and comprising a first leg end and a second leg end , wherein the leg ends are arranged at distal ends of the one or more legs away from the body and below the arm end when the rotors exert the propulsion force on the vehicle in the upward substantially vertical direction; wherein the arm end , the first leg end and the second leg end are intersected by a front plane (FP) and are adapted for together contacting the wall at three spaced apart positions, said front plane (FP) intersecting the vertical axis at the upper side of the first plane (RP) and extending at a first angle (α) of between 45 to 85 degrees to the first plane (RP); and wherein the body, the rotors, the arm end and leg ends are adapted for tilting in conjunction, upon contact of the first and second leg ends with the substantially vertical wall while the first and second leg ends are arranged along a substantially horizontal line and while the arm end approaches the wall, about the first and second leg ends and towards the wall, until the arm end contacts the substantially vertical wall. <EOS>