Abstract: A pedal-operated holding device for a model aeroplane, comprising a holding means (3; 103) having a holding state in which it is arranged to engage part of a model aeroplane (20), and a release state in which it is arranged to release the part of the model aeroplane (20); a pedal (2; 102), the operation of which causes the holding means (3; 103) to switch between states; and a base (1; 101), on which are mounted the pedal (2; 102) and the holding means (3; 103); in which the holding means (3; 103) is arranged so as to prevent movement of the model aeroplane (20) in a first horizontal direction (17; 117) when in the holding state, and to permit such movement in the release state; and the holding device (3; 103) further comprises auxiliary stop means (156) arranged to prevent movement of the model aeroplane (20) in a second horizontal direction opposite to the first horizontal direction (17; 117), in which the holding means (3; 103) is sized and shaped so that the part of the model aeroplane (20) which it engag