 Chyliński was responsible for working on construction and documentation for these planes.From 1933 to 1938, he was a member of the Avionic Section of the Mechanical Circle of the Warsaw Technical University Students.In 1939, he was drafted into the Army, and served first in the 5th Light Artillery Regiment (PAL) in Toruń, next in the 8th PAL of Płock, where he defended his country during the German invasion of Poland in the Battle of Bzura, and then staffed the Modlin Fortress.