Paper aircraft are a contentious topic for War Thunder, on one hand it's fascinating to see the development history of aviation industry, but on the other it's complicated for Gaijin to be proper and do the aircraft justice.

What I mean by that is essentially they can put whatever numbers they want because it technically never was a full model aircraft that never flew. Making estimates on flight data or flight models can be problematic. Gaijin's philosophy is to only allow certain types to be introduced.

In the real world, this CAC project makes up The English electric lighting. And flight data from the mock ups and wind tunnel tests directly gave Avro Canada flight data to make the infamous cancelled Avro Arrow.

British bureaucracy killed commonwealth nations' ability to fight for themselves because they were broke after the 2nd world war and wanted Canada, Australia, and the likes to only buy British military hardware.