Are all widebody aircraft designed to be container loaded?

All widebody aircraft are generally designed to be container loaded, which is a crucial feature for optimizing the loading and unloading process at airports. Container loading allows for a more efficient and safer way to manage cargo, ensuring that space is utilized effectively and reducing the time needed for ground operations. This design maximizes the capacity of the aircraft by using standardized containers that are compatible with the aircraft's cargo doors and hold dimensions.

While there may be specific circumstances or particular models that have different loading capabilities, the broad standard across the widebody aircraft category supports the use of containers. This design is integral for airlines operating international routes, where the volume of cargo can be significantly high, and efficiency is key to meeting operational requirements and customer expectations.

The other options introduce nuances that may apply to certain aircraft or situations but do not reflect the general principle that widebody aircraft are built with containerized loading in mind. Hence, the statement that all widebody aircraft are designed to be container loaded holds true in the context of standard aircraft design practices.