These were all airships in the Goodyear Tire and Rubber Company fleet of blimps.

Goodyear started this use of blimps as a global public relations program in 1925 with the launch of its first blimp "Pilgrim". Over the years, these blimps have gained notoriety by flying above the stadiums during major American sporting events such as the Indianapolis 500, the Super Bowl and college football games.

In 2014, however, Goodyear began a process of replacing its three U.S. non-rigid airships (blimps) with three new semi-rigid airships (dirigibles). Although technically incorrect, Goodyear continues to use the word "blimp" in reference to these new semi-rigid "dirigibles" models. Wingfoot One, the first such model in Goodyear's U.S. fleet, was christened on August 23, 2014, near the company's world headquarters in Akron, Ohio. Currently, Wingfoot One and Wingfoot Two are the only ships in the Goodyear's U.S. fleet.

Since 1928, Goodyear named its blimps after the U.S. winners of the America's Cup yacht race. This method came about when CEO Paul Litchfield said the blimps were like yachts in the sky. "America", "Columbia", "Enterprise", "Ranger" and "Resolute" were all winning yachts. The only time the practice deviated was in 1987 with the christening of the ship "The Spirit of Akron." This practice ended in 2005 with the naming of "Stars and Stripes".

Goodyear's foreign-based fleet includes the "Spirit of Europe".

More Info: en.wikipedia.org