The first aircraft to be purposely designed as a radar-equipped nightfigher, Northrop's P-61 Black Widow was heavily influenced by early RAF combat experience with radar-equipped aircraft in the years 1940/41 of World War II (1939-1945).
Built essentially around the bulky Radiation Laboratory SCR-720 radar, which was mounted in the aircraft's nose, the P-61 proved to be the largest fighter ever produced for frontline service by the USAAF.
Twin-engined and twin-boomed, the Black Widow was arme.
Osprey Publishing (uk) P-61 black widow units of world war 2, paperback/warren thompson
