sentences:  Published in the December 1955 issue of "Aeronautics" magazine titled "A pioneer in Scotland", James changed his story from that published in the same magazine previously, stating that "Preston's first aeroplane was without an engine" and that "trial flights were made at Errol in the summer of 1903".In a letter to Gibbs-Smith, James also wrote, "I make no claim that the 'machine' Preston used at Errol in 1903 was a powered machine.