Lance Corporal Siobhan Spiers from the Royal Electrical and Mechanical Engineers welding a support frame in the BLOODHOUND Technical Centre workshop.
Siobhan, a vehicle mechanic in the British Army, primarily works on the Nammo hybrid rocket system (pictured below). The 550bhp Jaguar V8 will use a chain driven gearbox to spin a pump, emptying the 800ltrs of rocket oxidiser (concentrated hydrogen peroxide known as High Test Peroxide) out of the silver tank and into the rocket in 20 seconds. You can see a video of the Nammo rocket testing below:
Pictures by Major Oli Morgan