The Heinkel He 219 was originally designed as a multi-purpose aircraft but it only saw use as a night fighter. In 1941 the Air Ministry asked that the aircraft, then under design, be made into a night fighter.
It was based on Heinkel's P.1060 fighter-bomber proposal but this didn't receive support in Berlin. Production was delayed by Generalfeldmarschall Erhard Milch preferring the Junkers Ju 188.
The He 219 used the Lichtenstein FuG 220 radar.
The He 219's windscreen was bulletproof and had wipers and hot-air demisting.
With the cockpit being so far forward, in front of the engines and guns, the flash didn't bother the crew as much.
Ejection seats were first used in combat in the He 219.
The He 219's cockpit was pressurized.
The fuselage contained the self sealing and protected fuel tanks.
The undercarriage was the first Luftwaffe plane to have tricycle landing gear.
One of the unique features of the He 219 was its Schräge Musik ("slanted music") upwards firing cannons located at the rear of the fuselage.
The gun turrets of the He 219 were remotely controlled.