Reinhold Poss was a German flying ace

Flying ace

A flying ace or fighter ace is a military aviator credited with shooting down several enemy aircraft during aerial combat. The actual number of aerial victories required to officially qualify as an "ace" has varied, but is usually considered to be five or more...

 and racing pilot

Aviator

An aviator is a person who flies an aircraft. The first recorded use of the term was in 1887, as a variation of 'aviation', from the Latin avis , coined in 1863 by G. de la Landelle in Aviation Ou Navigation Aérienne...

. Poss enlisted with the German Navy during World War I and scored eleven kills as a naval pilot. In May 1918 he took command of the Seefrontstaffel and in September 1918 of the IV. Marinefeldjasta, which he led until 15 October, when he was shot down and captured. He spent the final month of the war in a POW camp.
Following the war, Poss achieved further fame as a pilot, completing, with Hermann Köhl, the first nighttime flight between Warnemünde

Warnemünde

Warnemünde is a sea resort and northmost district of Rostock in Mecklenburg-Vorpommern, situated on the Baltic Sea in the northeast of Germany at the estuary of the river Warnow.- History :...

 and Stockholm

Stockholm

Stockholm is the capital and the largest city of Sweden and constitutes the most populated urban area in Scandinavia. Stockholm is the most populous city in Sweden, with a population of 851,155 in the municipality , 1.37 million in the urban area , and around 2.1 million in the metropolitan area...

, Sweden.