How many fuse plugs are installed on each main landing gear wheel/tire?

The correct answer indicates that there are three fuse plugs installed on each main landing gear wheel/tire. Fuse plugs are critical safety devices designed to release air from the tire in the event that it overheats due to excessive pressure. This is especially important during operations such as landing or taxiing when tires can experience significant heat buildup.

Having three fuse plugs provides a redundancy that helps ensure that if one or two fuse plugs operate as intended during an overheating condition, there is still a backup system in place. This enhances the safety of the landing gear operations and helps to prevent tire blowouts, which can be dangerous during flight operations.

The choice of three as the number of fuse plugs is standardized in design to balance safety and cost-effectiveness. This configuration is typically found in many aircraft, further showcasing the importance of reliability within the landing gear system.