They set up and run experiments in wind tunnels, which are special facilities that simulate real world air movement.  The job involves preparing equipment, collecting data, and making sure everything runs safely and accurately.  Wind tunnel technicians often work with engineers and scientists to help improve designs by seeing how they perform under different conditions.

In the UK, a wind tunnel technician starting out might earn between £20k and £25k a year.  With more experience, salaries can rise to around £30k to £40k.  Senior technicians or those working on advanced projects in the aerospace or automotive industries may earn even more depending on their level of skill and responsibility.  

To become a wind tunnel technician, most people take a college course or apprenticeship in mechanical or aerospace engineering.  Maths, physics, and engineering at school are helpful.  Some go on to study engineering at university, but hands-on skills are just as important.  Being good with computers, understanding technical drawings, and paying close attention to detail are all key in this role.