A mobile access unit for allowing all passengers, whether fully mobile, less mobile or disabled, to embark or disembark from an aircraft using the same unit, the aircraft having a loading door and the unit permitting the passengers to travel from the ground to the loading door or from the loading door to the ground, the unit comprising: a first moveable ramp section (2; 102), extending from an aircraft entry/exit end (2a; 102a), which allows access to the loading door of the aircraft, to a hinged end (2b; 102b), wherein the entry/exit end (2a; 102a) rotates about the hinged end (2b; 102b), between a raised position and a lowered position, therefore allowing adjustment to match the height of the aircraft loading door in relation to the ground; a second moveable ramp section (4; 104), extending from a hinged end (4a; 104a) to a ground entry/exit end (4b; 104b), which allows access to the ground, wherein the ground entry/exit end (4b; 104b) rotates about the hinged end, between a raised position and a lowered position, therefore allowing movement of the second moveable ramp section from a position where it is raised off the ground, to aid transportation of the unit, to a lowered position where it contacts the ground; and a non-linear middle ramp section (3; 103), extending from a first linking end (3a; 103a), which links with the hinged end (2b; 102a) of the first moveable ramp section (2; 102), to a second linking end (3b; 103b), which links with the hinged end (4a; 104a) of the second moveable ramp section (4; 104); wherein during use the first moveable ramp section (2; 102), middle ramp section (3; 103) and second moveable ramp section (4; 104) together form a continuous non-linear ramp that extends from the loading door of the aircraft to the ground, wherein the continuous non-linear ramp includes two or more turns and wherein the sum of the angles turned by the continuous non-linear ramp over its length is 360 degrees or more, and wherein the non-linear middle section (3; 103) comprises an inclined ramp, which has a fixed inclination. a first moveable ramp section (2; 102), extending from an aircraft entry/exit end (2a; 102a), which allows access to the loading door of the aircraft, to a hinged end (2b; 102b), wherein the entry/exit end (2a; 102a) rotates about the hinged end (2b; 102b), between a raised position and a lowered position, therefore allowing adjustment to match the height of the aircraft loading door in relation to the ground; a second moveable ramp section (4; 104), extending from a hinged end (4a; 104a) to a ground entry/exit end (4b; 104b), which allows access to the ground, wherein the ground entry/exit end (4b; 104b) rotates about the hinged end, between a raised position and a lowered position, therefore allowing movement of the second moveable ramp section from a position where it is raised off the ground, to aid transportation of the unit, to a lowered position where it contacts the ground; and a non-linear middle ramp section (3; 103), extending from a first linking end (3a; 103a), which links with the hinged end (2b; 102a) of the first moveable ramp section (2; 102), to a second linking end (3b; 103b), which links with the hinged end (4a; 104a) of the second moveable ramp section (4; 104); wherein during use the first moveable ramp section (2; 102), middle ramp section (3; 103) and second moveable ramp section (4; 104) together form a continuous non-linear ramp that extends from the loading door of the aircraft to the ground, wherein the continuous non-linear ramp includes two or more turns and wherein the sum of the angles turned by the continuous non-linear ramp over its length is 360 degrees or more, and wherein the non-linear middle section (3; 103) comprises an inclined ramp, which has a fixed inclination.