For a little more information and to answer a question raised on the articles comments section, the German pilot, Helmut Eberspächer was born on 18th of Novenmber 1915 in Tübingen.
In 1934 he volunteered for the Army , serving in an armoured reconnaissance battalion. Later he studied mechanical engineering and in 1939 he transferred to the Luftwaffe.
He served with KG51, NSGr. 20 and SKG 10.
He survived the war as a Captain and joined his cousins Dr Richard and Walter Eberspacher in the family business making, among other things, the night heater that still bears their name today.
He died in Germany on 19th June 2011 aged 95.