Underground personnel transport - photo

Underground personnel transport.

https://diqn32j8nouaz.cloudfront.net...s_fullsize.jpg


Previously:

https://www.homemadetools.net/forum/...031#post226907
https://www.homemadetools.net/forum/...012#post221085
https://www.homemadetools.net/forum/...621#post216070
https://www.homemadetools.net/forum/...405#post208606
https://www.homemadetools.net/forum/...425#post204781

These are probably used in all the government underground tunnel jobs. It woud be a treat to see what they have created underground. Decades of tunneling. Coast to Coast I'm told. Getting ready for the SHFT day.