Best Of Great Planes: Strategy and Stealth (2010) DVD
 
Reveals the astounding designs and advances in strategic aerial warfare - including the prototype XB-70 Valkyrie supersonic bomber; the strategic B-1 Lancer bomber, the US Air Force’s only active variable sweep wing aircraft; and the SR-71 which was dubbed the ‘Blackbird’ for its technologically advanced, high speed, strategic reconnaissance ability.