Aircraft • Airlines • History

Know what you’re looking at.

Search aircraft specifications, learn the visual clues, explore airline fleet histories, and compare the machines that shaped aviation.

Boeing 727 showing its three rear-mounted engines and T-tail
Featured aircraftBoeing 727Why three engines? →

Aircraft identification and aviation history

Aircraft specifications, spotting guides, comparisons, and airline fleet histories.

Use the aircraft reference library to identify civilian and military airplanes, compare meaningful specifications, and trace the fleets that shaped notable airlines.

Aircraft library

Start with a legend

Browse all 10 aircraft →

Fleet history

Explore the airlines behind the aircraft

Browse all 5 airlines →