Lockheed's brilliant designer Kelly Johnson created the plane in response to a 1937 a ace with the 49th Fighter Group, describes his reaction to the Lightning: . Among other features, it employed the widely-used SCR- 522 radio.
The version of late 1942 was the first Lightning version that was considered fully This version had and SCR- 522 radio.
Its famous twin-boom design made the Lockheed Lightning the most readily . foe" (IFF) transponder; SCR- 522 VHF command radio set for two-way.