The flying arm crane of forklift is to use the forklift as the foundation, add a special boom at the front end of the forklift, and change it into a crane and truck mounted crane. As a tool for lifting operation, it can also be regarded as an accessory of forklift.
Telescopic boom-Small rough terrain forklift attachment
Here is an example of Telescopic Boom. You can click to enter the above link.
4.5T 8m fly jib for forklift(the load chart of the boom)
Features and Advantages of Kaystar Forklift Fly Jib