I’m with Brodrick on the Boston Paul Defiant.Instead
William Sager
31

Because as bad as the Boulton-Paul Defiant was, it was not irredeemable. Its concept (a turreted fighter) was not nearly as flawed as its application (use as a dogfighter). When it was taken off front-line duty and applied towards nightfighting, it turned out that its ability to fire upwards made it ideal for shooting down bombers, which often went unescorted during night missions.