What is the primary difference between box-type and fulcrum stabilizers?

The primary difference highlighted in the question relates to the deployment capabilities of fulcrum stabilizers compared to box-type stabilizers. Fulcrum stabilizers are designed such that they must be deployed to their full extension to function effectively. This design characteristic means that when the apparatus is positioned, these stabilizers rely on achieving maximum extension to provide stability, which can limit their flexibility in various operational scenarios.

In contrast, box-type stabilizers often allow for deployment in varying degrees of extension, making them adaptable to different terrains and situations. Hence, the assertion that fulcrum stabilizers can only be fully extended accurately captures this essential limitation, emphasizing their operational constraints compared to the more versatile nature of box-type stabilizers. Understanding this distinction is crucial for making informed decisions about which stabilizer type to use in specific firefighting scenarios, ensuring optimal safety and effectiveness.