They promised luxury in the skies with room for hundreds—so where are the triple-deck planes today? Take a look inside these ambitious giants of aviation, the bold concepts behind them, and the ...

Airplanes cruise at altitudes of several thousand feet above the ground for most parts of their journeys. If the sole purpose were to avoid buildings, airplanes wouldn't need to fly above 3,000 feet — ...

USS Marinette uses the same kind of turbines found in Boeing 777 airliners, blasting water through four giant jets to hit ...

If hybrid cars can cut CO2 emissions on the road, can hybrid-electric planes do the same in the air? NASA is exploring that possibility, announcing this week two contracts to aviation startup Electra.

For most people, private jets are typically smaller planes, with the largest purpose-built models, like the Bombardier Global 7500/8000, often sitting fewer than 20 passengers. If you need a larger ...