Much was made of the fact that the wing of the B-36 Peacemaker was deep enough to allow engineers to enter it and maintain the engines in flight. Conceived during 1941 in case Germany occupied Britain, when US bombers would then have insufficient range to retaliate, the B-36 Peacemaker was to be primarily a ‘10,000-mile bomber’ with heavy defensive armament, six engines and a performance that would prevent interception by fighters. It was one of the first aircraft to use substantial amounts of magnesium in its structure, leading to the bomber’s ‘Magnesium Overcast’ nickname. It earned many superlatives due to...