If doing a PhD will take a long time, how much time will it approximately take to complete the entire process in UK?

A full-time PhD in the UK typically takes 3 to 4 years to complete.

- The first three years are focused on independent research, data collection, and analysis.
- The final year is usually dedicated to writing your thesis and preparing for the viva voce (oral examination).

If you study part-time, the process usually extends to 5 to 7 years.

Timelines can vary depending on your research topic, access to resources, and any personal or academic challenges. Given your background in Aerospace Engineering, plan for a minimum of three to four years for a full-time PhD.