What is a defining feature of the B-5 maintenance stand?

The defining feature of the B-5 maintenance stand is that it is scissors-type with a variable height. This design allows the maintenance personnel to adjust the height to accommodate different working requirements and enhance their access to various aircraft components. The scissors mechanism provides stability when elevated, making it safe for technicians to perform their tasks at varying heights.

In contrast, the non-mobile characteristic does not apply here since the B-5 is designed for mobility across the work area, allowing ease of positioning as needed. A fixed height would limit versatility, which is contrary to the adjustable nature of the B-5. While some maintenance stands may feature wheels for maneuverability, the key aspect of the B-5 is its scissors-type design, enabling variable height adjustments crucial for effective and safe maintenance operations.