UFOs of the First World War

Lieutenant R.S. Maxwell took off in his BE2C fighter but saw nothing unusual until 8.25 p.m. when, according to his report: 'My engine was missing irregularly and it was only by keeping the speed of the machine down to 50 mph that I was able to stay at 10,000 feet. I distinctly saw an artificial light to the north of me, and at about the same height. I followed this light northeast for nearly 20 m...