What is the primary purpose of a hangar in aviation?

The primary purpose of a hangar in aviation is to provide an environmentally protected area for maintenance on aircraft. This is essential because hangars shield aircraft from weather elements such as rain, snow, and extreme temperatures, which could damage both the exterior and interior systems of the aircraft. Additionally, the controlled environment within a hangar allows maintenance crews to perform necessary inspections and repairs efficiently and safely, ensuring the aircraft remains airworthy.

While aircraft parts storage, pilot training, and crew living arrangements involve different aspects of aviation, they do not encapsulate the hangar's primary function. Management of aircraft maintenance is the foundational activity that hangars are designed to support, ultimately maintaining the safety and readiness of aircraft operations.