Inside and out: UAV unveils structural secrets at Sellafiled

James Fisher Nuclear (JFN) and project management consultancy WYG have conducted the first external Unmanned Aerial Vehicle high-resolution structural survey of a chimney stack within Sellafield’s high security chemical separation active area.

The detailed UAV survey of the chimney stack precisely assessed how the chimney’s cowling, at the top of the stack, was constructed. This new data will allow Sellafield to compile an accurate method statement for its safe removal.

Previously, an inspection of this kind would have required the erection of scaffolding or special access vehicles, both of which are costly and require operators to work at height.

Sellafield’s John Daniel said: “Within the first seven minutes, the JFN and WYG team gave us key information we could not ascertain from the existing drawing record.

“The new information the UAV has provided helps the project fully understand what is awaiting the demolition team when it reaches the top, and preparations can be made to ensure a safe and efficient transition from climb to demolition can be made.”