As aerospace systems grow ever more complex, the need to manage this complexity effectively increases. Model Based Systems Engineering (MBSE) has been introduced to address this challenge. While several companies are already reporting successful adoption, uncertainties remain around practical implementation, such as steep learning curves, unclear processes, and, in particular, a lack of accessible, real-world examples. 

This thesis investigates the current state of MBSE at GKN Aerospace and explores how MBSE can be integrated into the company's existing workflow. Through a combination of literature review and interviews with employees at GKN, current challenges and opportunities were identified. The study follows the Design Research Methodology (DRM) and culminates in a practical modelling example: a control system for a demonstrator jet engine, developed using the ARCADIA methodology and System Modelling Workbench (SMW). 

The resulting model demonstrates how MBSE could be applied in an industrial context at GKN, while also addressing the need for internal modelling references. The findings highlight the importance of defining a common systems engineering foundation, establishing modelling standards, and improving tool integration. This work contributes both a practical example and recommendations to support the ongoing adoption of MBSE at GKN Aerospace.