Brian Firth, 81, worked for English Electric at Warton. Aged just 15, he started with the company as a probationary apprentice in the photography department.
He said: " that one year stood me in good stead for the rest of my life.
"We went all over the factories. We were allowed just about everywhere - even the top secret areas. It was fantastic. I learned a lot."
From there he went to Preston to start an apprenticeship with English Electric where he worked for almost 50 years - finishing at the age of 65.
He said: "I never regretted my time with the company. In the photographic department we were allowed in the wind tunnels, water tunnels, stress tests. I met everyone.
"I love events like the Christmas Party. It makes a big difference to all the members. It's definitely something to look forward to."
If you are a current or former employee and would like to become a member, email employee.association@baesystems.com.
Brian, pictured with wife Elaine.