In which type of aircraft do windows fall out?

The correct answer refers to wheeled aircraft, which can experience incidents where windows may fall out due to various factors, including design, structural integrity, or operational conditions. An example of such an event might occur during hard landings or due to wear and tear over time. These factors can lead to the failure of window seals or fastening mechanisms, resulting in windows detaching during flight or when the aircraft is on the ground.

In contrast, utility helicopters, CH-47s, and cargo aircraft generally have design features that better secure their windows, minimizing the likelihood of such occurrences during standard operations. Utility helicopters and the CH-47, specifically designed for transport and tactical missions, incorporate robust construction and safety features that keep their windows securely in place. Cargo aircraft also emphasize structural integrity in their design to ensure operational safety and efficiency, reducing the risks associated with window detachments.