U.S. Centennial of Flight Commission home page
Gotha bomber

The Gotha bomber was produced in the autumn of 1916 when the limitations of the Zeppelin as a raider had become obvious. The German High Command ordered that 30 Gotha bombers were to be ready for a daylight raid on London on February 1, 1917, but the machines were not ready until May. The first daylight raid on London was carried out by 14 Gothas on June 13, 1917. On July 7, 22 Gothas raided London. Night raids began in August of 1917, and continued until May 1918, when they were abandoned because of the increasingly heavy losses.

Credits - wwiaviation.com