Double-deck aircraft

Many early flying boat airliners, such as the Boeing 314 Clipper and Short Sandringham, had two decks.

The first full double-deck aircraft was the French Breguet Deux-Ponts, in service from 1953.

Boeing originally designed the distinctive 747 bubble top with air cargo usage in mind.

[citation needed] The small top deck permitted the cockpit and a few passengers and nose doors with unobstructed access to the full length of the hold.

The first full double-deck jet airliner is the Airbus A380, which has two passenger decks extending the full length of the fuselage, as well as a full-length lower third deck for cargo.