The June Bug, a further refinement of White Wing, was sponsored by Curtiss and was eminently successful with the same engine. First flown on 21 June, it made numerous flights, including a straightaway run of 1042m on the seventh flight. On 4 July, Curtiss made a pre-arranged flight to win the first task, or 'leg', of the Scientific American Trophy, which called for a straightaway flight of one kilometre. After a couple of false starts, he won this with ease by flying 1.6km at a speed of 62.76km/h.