After extensive testing, the P1B design was finalized, leading to a contract for 23 airframes that became the Lightning F1.

Some utterly brilliant engineering has gone into the grim task of creating bombers in Britain. While many formidable British ...

As early as 1943 it became apparent that supersonic flight might be an achievable goal--but not for the propeller-driven aircraft of the day. Spurred on by secret intelligence of a German supersonic ...