The weight of an airplane depends on its size, type and configuration. The FAA classifies aircraft into six weight classes, the smallest being for airplanes under 12,500 pounds and the largest being for airplanes over 30... More »

Jet A-1 type fuel, in terms of Imperial weights and measures, weighs 0.15 pounds per gallon. Conversely, one gallon of Jet A-1 type fuel weighs 6.66 pounds. More »

When flying internationally, amounts exceeding $10,000 must be declared to customs. Otherwise, there is no established legal limit to the amount of cash a traveler can carry onto a plane. More »

The size of an airline seat varies depending on the plane model and its seating configuration. A coach seat on a commercial airline is 17 to 19 inches wide, on average. First-class seats are customarily 21 inches wide. More » Vehicles Airplanes & Helicopters

Typical seating configurations differ depending on the type of airplane and the airline: Southwest, Virgin America and Spirit use a three-three configuration in their narrow body jets with an aisle down the middle, while... More » Vehicles Airplanes & Helicopters

Used airplane propellers vary in size and shape depending on the type of airplane they came from. Factors that dictate the size of propeller that must be used on an aircraft include engine type and power, cruise speed, r... More » Vehicles Airplanes & Helicopters

The average speed of an airplane depends on the size and type of the airplane. A Boeing 747, which is a popular commercial plane, has a typical cruise speed of .85 Mach or 567 miles per hour when at 35,000 feet. More »