The Dreadnought immediately made all preceding battleships obsolete, but by World War I it was obsolescent itself, having been outclassed by faster "superdreadnoughts" carrying bigger guns.
Indeed, it could be obsolescent only a few years after it enters service.
During World War II, George led the Air Transport Command, taking it from 130 obsolescent aircraft to 3,000 modern transports, operated by 300,000 airmen.
The value of the French Air Force in 1939 was reduced by the number of obsolescent planes in its order of battle: 131 of the 634 fighters and nearly all of the 463 bombers.
Because it is supposed to last as long as it takes to become obsolescent, the tank becomes part of the country's permanent defense capability.
It's also technologically obsolescent.
The Edgar Quinet class was the most powerful type of armored cruiser built in France, but they entered service more than two years after the British battlecruiser, which, with its all-big-gun armament, had rendered armored cruisers obsolescent.
The technology he uses may be obsolescent, but the play is remarkably prescient in its understanding of how, in the modern world, identity is refracted by ever-proliferating forms of mechanical reproduction.
The innovation explosion, which sounds so inspiring on its surface, so quintessentially American, seeks to circumvent lumbering and obsolescent social, political, and economic structures - including restrictions on free trade - with rapid and inventive work-arounds.
Thus it will continue to fulfil its remit even in the light of further developments or discoveries, whereas otherwise it might soon have seemed obsolete or obsolescent.
