A vertical take-off and landing aircraft comprising: a pair of fans or propellers for generating lift and thrust; a power supply unit for supplying power to the pair of fans or propellers; a main frame for supporting at least part of the power supply unit, a seat, and a landing undercarriage; a sub-frame for supporting the pair of fans or propellers; a frame coupling unit for rotatably coupling the main frame and the sub-frame; and a control stick connected to the sub-frame, wherein an orientation of the pair of fans or propellers is changed by a movement of the sub-frame relative to the main frame caused by an operation of the control stick carried out by an occupant sitting on the seat; the control stick is attached directly to the sub-frame; the pair of fans or propellers is fixed to the sub-frame; the power supply unit includes a power source supported by the main frame and a power transmission shaft for transmitting power generated by the power source to the fans or propellers; characterised in that a rotating shaft of the power transmission shaft is disposed coaxially with a rotating shaft of the sub-frame in the frame coupling unit; and in that the frame coupling unit comprises: a main body portion connected to the main frame and having a pair of first cylindrical portions through which the power transmission shaft can be inserted; a rotating portion connected to the sub-frame and having a second cylindrical portion fitted by insertion inside the pair of first cylindrical portions; and shaft bearings disposed between the first cylindrical portions and the second cylindrical portion; and the main body portion extends in a substantially L-shape from a lower surface of the main frame, the pair of first cylindrical portions extends from the distal end portion thereof and the rotating portion is disposed between the pair of first cylindrical portions. a pair of fans or propellers for generating lift and thrust; a power supply unit for supplying power to the pair of fans or propellers; a main frame for supporting at least part of the power supply unit, a seat, and a landing undercarriage; a sub-frame for supporting the pair of fans or propellers; a frame coupling unit for rotatably coupling the main frame and the sub-frame; and a control stick connected to the sub-frame, wherein an orientation of the pair of fans or propellers is changed by a movement of the sub-frame relative to the main frame caused by an operation of the control stick carried out by an occupant sitting on the seat; the control stick is attached directly to the sub-frame; the pair of fans or propellers is fixed to the sub-frame; the power supply unit includes a power source supported by the main frame and a power transmission shaft for transmitting power generated by the power source to the fans or propellers; characterised in that a rotating shaft of the power transmission shaft is disposed coaxially with a rotating shaft of the sub-frame in the frame coupling unit; and in that the frame coupling unit comprises: a main body portion connected to the main frame and having a pair of first cylindrical portions through which the power transmission shaft can be inserted; a rotating portion connected to the sub-frame and having a second cylindrical portion fitted by insertion inside the pair of first cylindrical portions; and shaft bearings disposed between the first cylindrical portions and the second cylindrical portion; and the main body portion extends in a substantially L-shape from a lower surface of the main frame, the pair of first cylindrical portions extends from the distal end portion thereof and the rotating portion is disposed between the pair of first cylindrical portions.