Following World War II, Weik became an architect and died on 5 June 2001 in Heidenheim an der Brenz.

Weik was born on 6 July 1922 in Heilbronn in the Free People's State of Württemberg of the Weimar Republic.

[4] World War II in Europe had begun on Friday, 1 September 1939 when German forces invaded Poland.

The Geschwaderstab under command of Major Wolf-Dietrich Wilcke, fought in operations against the Kuban bridgehead as part of the IV.

In total, pilots of the Geschwaderstab claimed 38 aerial victories in March and April 1943, including eleven by Weik.

[5] For his achievements on the Eastern Front, Weik was awarded the both classes of the Iron Cross (Eisernes Kreuz).

Staffel (4th squadron) of Ergänzungs-Jagdgruppe Ost, a supplementary fighter pilot training unit based at La Rochelle.

Staffel was commanded by Leutnant Ekkehard Tichy and based at Bad Wörishofen and fighting in defense of the Reich.

Shortly after, the Gruppe regrouped and flew a second frontal attack and Weik claimed his second B-17 bomber shot down that day.

Gruppe would be converted to a Sturmgruppe (assault group), the first of such units, as a means to combat the bomber formations of the USAAF.

Similar to the experimental Sturmstaffel 1 (1st Assault Squadron) of JG 3, the Gruppe was equipped with the heavily armored variant of the Focke-Wulf Fw 190 A series.

Every pilot of the Gruppe was asked to sign a contract, declaring that they would commit themselves to pressing attacks on the bombers to point-blank range, and that aerial ramming should be considered.

Dahl and Moritz drove the attack to point-blank range behind the Liberators of the 492d Bombardment Group before opening fire.

[21] The authors Prien, Stemmer and Bock state that the consolidated attack flown in close formation by the Sturmgruppe resulted in overclaiming of aerial victories caused by the confusing combat situation.

[22] On 18 July, the USAAF Fifteenth Air Force sent approximately 500 B-17 and B-24 bombers to targets in southern Germany, northern Italy.

Memmingen Airfield was targeted by over 200 bombers, escorted by North American P-51 Mustang and Lockheed P-38 Lightning fighters.

Of this figure, he claimed eleven aerial victories on the Eastern Front and 23 over the Western Allies, including 22 four-engined bombers.