De Boeing 'B-17 Fortress II' ('Vliegende Forten') bommenwerper. AIR WAR PAINTS A PICTURE IN THE SKY.

De Boeing 'B-17 Fortress II' ('Vliegende Forten') bommenwerper. AIR WAR PAINTS A PICTURE IN THE SKY. Flying Fortresses of the Eight U.S. Air Force wing across the sky as U.S. fighter planes, accompanying the Fortresses on a raid against German installations in Europe, sweep up and above the bomber formation, marking their substratosphere flight with bright vapor trails. Reflected from the vapor's light. -50-caliber machine guns bristle from the leading Fortress.