What is typically found in the design of landing gear?

The design of landing gear typically includes three wheels or sets of wheels for stability, balance, and support during ground operations. Most aircraft, especially traditional fixed-wing planes, utilize a tricycle configuration, which consists of one wheel located at the nose (or front) and two main wheels under the fuselage or wings. This configuration enhances the aircraft's stability during takeoff and landing phases, as well as when taxiing on the ground.

Having three points of contact with the ground minimizes the risk of tipping over and allows for better control during rollout and steering while on the ground. While some specialized aircraft may feature different arrangements, the use of three wheels is the standard for most commercial and military airplanes, promoting safety and efficiency in various flight operations.