Which maintenance stand can be used independently or installed as an extension on the B-1 maintenance stand?

The C-1 maintenance stand is specifically designed to be used independently or as an extension for the B-1 maintenance stand. This versatility allows for flexibility in maintenance operations, providing additional height and reach when servicing aircraft. The C-1 is engineered with stability and safety in mind, making it an essential tool for those working on the B-1 aircraft. This characteristic of being adaptable is what sets it apart from the other maintenance stands listed, which do not have the same compatibility with the B-1 maintenance stand.