Hartung Project

From Tardis Wiki, the free Doctor Who reference

The Hartung Project was the long but fast-tracked process of creating the advanced stealth bombers Hugin and Munin for the German Luftwaffe, spearheaded by Emil Hartung from Rechlin for three years from November 1936. To this end, the Third Reich afforded him any resources he required, be it men, materials or money. At a cost of three million Reichsmarks, it was too expensive to produce a squadron, but they were covered in a new carbon foam which acted as a Jaumann absorber and Yehudi lights. The aircraft would be able to absorb radar and light energy. The material was sound-proof and even hard to detect with the human eye. (PROSE: Just War)