What type of warning device is required for retractable gear aircraft?

For retractable gear aircraft, the requirement for a warning device typically focuses on ensuring that the pilot is immediately alerted to the gear’s position. An aural warning, such as a horn or similar device, serves this critical safety function effectively. It provides an unmistakable alert that can grab the pilot's attention, regardless of visual distractions or other cockpit duties.

The use of an aural device is particularly valuable during critical phases of flight, such as approach and landing, when the gear must be extended for safe operation. If the landing gear is not down and locked when it should be, this warning helps prevent dangerous situations like gear-up landings.

While visual indicators, such as lights, are also important in confirming gear status, they may not always be enough to ensure timely action, especially under conditions of high workload or when visibility is compromised. Therefore, including an aural alert system as required enhances the safety protocols for retractable gear operations.