What are facts about the biplanes?

Answer 1

Biplanes have two wings, an upper and a lower. All biplanes have propellers although one or two do have turbo prop engines.

Answer 2

1. Biplanes are a type of fixed-wing aircraft that feature two sets of wings, one above the other.
2. They were popular during the early 20th century and were used for various purposes including military combat, air races, and passenger transportation.
3. Biplanes are known for their maneuverability and agility, thanks to the lower wing creating greater lift. However, they generally have a lower top speed compared to monoplanes.