Goodyear retires blimps but keeps familiar form in flight

Goodyear is letting the helium out of the last of its fabled fleet of blimps.But shed no tears, blimp fans, you'll still see a familiar form floating over your favorite sports events long after the California-based "Spirit of Innovation" goes flat Tuesday.Its replacement, "Wingfoot Two," will look about the same when it arrives at Goodyear's California airship base in Carson later this year.But it will be a semi-rigid dirigible. It joins two similar aircraft replacing aging Goodyear blimps in Fl