What is the proper storage technique for a tire and wheel assembly?

Storing tire and wheel assemblies vertically in a rack is the preferred method because it helps maintain the integrity of the tire and prevents deformation. This vertical positioning reduces the risk of damage from prolonged contact with surfaces that might cause distortion or flat spots on the tires. Additionally, vertical storage allows for better airflow around the tires, which can help prevent moisture accumulation and potential degradation of the rubber material. Proper vertical storage is important to maintain the tire's shape and performance characteristics, ensuring safety and longevity when the tire is later mounted on an aircraft.

Other storage methods, like stacking on a flat surface or in a horizontal container, may lead to uneven pressure and deformation that can compromise the tire's functionality and lifespan. Storing them outdoors can expose the tires to environmental factors such as direct sunlight, which can accelerate aging and degradation.