And probably another supplier of steel. The supplier of the original batch having lost a lot of money on the project since, eventually, they had to make three batches before getting it right. Mr Ditheridge’s opinion was that they would be unlikely to want to try again, ever.
Moggy
Airbus are currently developing the means to use additive manufacturing (3D printing) to make whole airliner wings. Perhaps there will come a time when complex airframe structures such as the Hurricane will be printed. 🙂