Rudolf von Eschwege (1895–1917) was a German flying ace during World War I credited with 20 confirmed and six unconfirmed aerial victories as the only German fighter pilot on the entire Macedonian front,[1][2] where he was opposed by over 160 enemy aircraft. Among his aerial combats were three highly hazardous successful attacks on observation balloons serving as artillery direction posts. The fourth one he attacked was loaded with explosives; when it was detonated from the ground, it blew him out of the sky.[3][4]
Franks, Norman; Bailey, Frank; Guest, Russell (1993). Above the Lines: The Aces and Fighter Units of the German Air Service, Naval Air Service and Flanders Marine Corps, 1914–1918. London UK: Grub Street Publishing. ISBN978-0-948817-73-1.