In Akron--not in London--a blessed event is about to occur. Will it be as big as the Royal Baby? Bigger.The newborn measures 246 feet long by 66 feet wide. It weighs 19,780 pounds. It is a Zeppelin—Goodyear's first.The tire company says the christening will occur sometime early next year.For proud parent Goodyear, having a Zeppelin marks something of a departure. Since 1919, its offspring have almost all been blimps. For generations the iconic aircraft have been a fixture over sporting events and other public occasions. But the time has come, says Nancy Ray, head of Goodyear's airship operations, to give the blimp the boot.