The Defiant is an interesting aircraft and until recently, a largely overlooked subject compared to the popular “mainstream” aircraft from WWII. It has been offered by various model companies like Classic Airframes and Airfix in 1/48 and 172 scale.
This British aircraft was originally intended as a day fighter, with the rear turret harking back to WWI designs that were quite successful in their day. During the early days of the Battle of Britain, the Defiant proved to be vulnerable to head on attacks after BF 109 pilots figured our it had no forward firing, wing mounted guns. The turret had limits to its travel and could not aim the guns low enough while firing forward. The aircraft was also hampered by the significant weight added by the four gun, powered turret, resulting in a less maneuverable platform. It was soon relegated to night fighting duties, where it excelled against the Luftwaffe attempts to bomb Britain at night.