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How I became an Electrical Apprentice in the defence sector

Ministry of Defence By Erin O'Byrne, Apprentice, Building Services – 18 May 2026

Portrait photograph of a person with long, curly ginger hair wearing a black jacket over a light pink collared shirt, standing against a pale grey and white marble wall background.

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Portrait photograph of a person with long, curly ginger hair wearing a black jacket over a light pink collared shirt, standing against a pale grey and white marble wall background.

Erin O'Byrne

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My path into defence began at the beginning of sixth form. I had always been aware that I was interested in engineering, even taking it at GCSE, but when I joined sixth form, I decided to pursue engineering beyond the classroom and actively develop myself in the field.

Taking engineering as a GCSE allowed me to experience a balanced mix of practical and coursework, which I thoroughly enjoyed. I was the only girl in my class and faced harsh sexism from some of the male students. Despite this, I refused to let negativity stop my pursuit of engineering. After achieving a distinction in the subject, I applied to a technical college of engineering.  

At Aston Engineering Academy (AUEA), I studied an extended diploma in engineering. AUEA opened me up to different extracurricular activities, including RAF Cadets, which, upon reflection, I realise was my first step in investing towards my future career development. Through the RAF Cadets, I developed skills in discipline, communication, teamwork, and leadership while also exploring my interest in aviation and defence. The opportunity to learn the physics of an aircraft, even allowing me to use plane simulation equipment were extremely exciting and supported my plan to pursue a career within engineering and defence. Being immersed in an environment that incorporated technical knowledge, structure, and responsibility confirmed that this was the direction I wanted my future to take.

As my confidence developed through the RAF Cadets, I became more interested in hands-on experience. In my final year of sixth form, I applied for a project with The Air League. Unfortunately, the project required me to leave the RAF Cadets. However, I saw it as a priceless chance to gain insight into both defence and aerospace industries.

The application process was competitive and intense. It ended with a final on-site interview. I was enthusiastic when selected. This represented a turning point in my path into the industry. It shifted me from conceptual understanding to real-life application.  

For the project, I travelled weekly to RAF Cosford, where I worked in one of the hangars. When I began, the aircraft had some initial parts assembled by a previous cohort. However, a lot was yet to be done. As a result, my team and I were involved in many aspects, including bodywork, interior and exterior installation, controls, and structural assembly. It gave me deep insight into the practical elements of engineering. Components do not always line up correctly; aerospace tolerances dictate installation, and mistakes must be identified to uphold safety and success. Those challenges gave me patience, attention to detail, and structured decision-making skills. A notably memorable troubleshooting challenge involved identifying that the fuel float had been installed upside down, stressing the importance of inspection backed by technical understanding and critical thinking.  

Throughout the project, we were supported by mentors with strong aviation backgrounds. Many were current or retired RAF engineers. They trained us in safe working practices, introduced us to electrical systems, and taught fault-finding techniques. Using genuine RAF equipment to practise electrical fault finding was impactful. It gave me practical experience of defence engineering standards.

As the project progressed, I began to take on more responsibility. I regularly led installation tasks or supported troubleshooting when issues arose. I helped move the aircraft to its new hangar and worked on installing and removing rivets. I also worked on structural tasks under the plane. These experiences strengthened both my technological and leadership skills.  

The project was presented at the RAF Cosford Air Show. We spoke with members of the public about the process and answered questions about the plane and our experience. Representing the project at a well-known event was highly rewarding. It showed me the wider impact of our work.  

Reflecting upon my journey into defence engineering, I see it was shaped by resilience, curiosity, and dedication. Seeking impactful opportunities guided me throughout. From starting on the path at school and developing in the RAF Cadets to building an aircraft, each step has strengthened my skill set and level of responsibility.

These experiences confirmed to me that the sector is the right one for my goals and values. I can be proud of how I have got to where I am as an Electrical Apprentice and look to the future, keeping learning and progressing.  

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