Among U.S. presidents, Warren G. Harding had the largest dirigible.

Every Sunday he’d pack that helium-filled baby with cold brewskis, lingerie models, and a brass band and take the whole White House staff and their families out for a party. He’d hover out over the Potomac, drop a line, and fish until he was drunk. Harding was an angry drunk, so often White House pages were dropped out in the river during his violent rages. But no one wanted to mess with a man who owned a giant dirigible. Besides, it was Prohibition, where else were they going to get such good beer for free?
Now you know, and knowing is half the battle.
Previously: What do Presidents do when their term is up?