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Q:

# How much does a plane weigh?

A:

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 300,000 pounds.

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As of 2014, the FlyNano, an ultralight aircraft, is the lightest plane certified for flight. It has an empty weight of 70 kilograms, with a maximum takeoff weight of 200 kilograms. In contrast, the AN-225 cargo aircraft is the largest plane in operation. It has an empty weight of 285 metric tons and a maximum takeoff weight of 640 metric tons. The empty weight of an aircraft is determined by calculating its weight free of fuel, cargo and passengers.

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## Related Questions

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Each passenger on a commercial flight in the United States is allowed one carry-on bag that can have liquids in 3.4-ounce containers that all fit into one quart-sized plastic zipper bag, as of November 2014. Normal carry-on items such as clothes, personal consumer electronics, medicines and nonliquid personal hygiene items are allowed. All carry-on bags must be inspected at airport checkpoints.

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A horizontal stabilizer is the small, horizontal tail at the rear of an aircraft that prevents the up-and-down motion of the nose of the plane. Attached to the horizontal stabilizer is a small moving section with hinges, which is called an elevator.

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The most common cause of airplane crashes is human error. According to the BBC, up to 50 percent of all airline accidents can be attributed to pilot error, but the Baltic Aviation Academy suggests that the number may be as high as 70 percent. Frequent factors that contribute to human error resulting in a crash include striking wires, losing control of the plane or flying into the water or land.