Word: duralumin
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...piece of neatly machined aluminum alloy. It represented, said Wright, a revolutionary advance in the technique of working duralumin, which meant development of a cylinder head that will give U.S. planes speed, altitude, load and range superiority over the Axis...
...Duralumin...
...Aluminum weighs one-third as much as steel, but [stainless] steel is more than four times as strong as aluminum in pull and tension. Recent developments in structure mathematics now enable us, even in small planes, to build trusses of thin stainless steel of equal weight to duralumin [an alloy containing 95% aluminum, 4% copper, ½ % manganese and ½ % magnesium while in larger ships there is a greater advantage to the steel construction...
...forming Dowmetal) its tensile strength and hardness increase six times. A bar of such a magnesium-base alloy is stronger than three times its weight in ordinary steel. It is not as strong as the same weight of an aluminum-base alloy (using .5% magnesium and 95% aluminum, making duralumin). Consequently airplane parts, where strength is important, are principally made of aluminum-base alloys, and Dowmetal is used primarily for engine castings, doors, hatches, floors, seats, brake assemblies, etc. Aluminum is usually used with some percentage of magnesium-partly for greater strength and partly because magnesium makes aluminum easier...
...night the legs arrived everyone had a big time. When the Germans captured Wing Commander Douglas Bader, D.S.O., they had been amazed at the gallantry of this boy, with no legs of his own, whose duralumin pair were crushed when his plane was shot down...