Komisia McDonnell F3H Demon bol podzvukové prúdové stíhacie lietadlo amerického námorníctva. Nástupca F2H Banshee, Demon bol prepracovaný s motorom J71 po vážnych problémoch s motorom Westinghouse J40, ktorý bol súčasťou pôvodného dizajnu, ale nakoniec bol opustený. Hoci mu chýbala dostatočná sila pre nadzvukový výkon, dopĺňala denné stíhačky ako Vought F8U Crusader a Grumman F11F Tiger ako za každého počasia, raketami vyzbrojeného interceptoru až do roku 1964.
Zdrojový: McDonnell F3H Demon na Wikipédii
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The McDonnell F3H Demon was a carrier-based jet fighter aircraft developed by the McDonnell Aircraft Corporation for the United States Navy in the 1950s. It was the first jet fighter in the Navy to have an afterburning engine and a radar fire-control system. The Demon was designed as an all-weather interceptor and fighter-bomber, capable of carrying air-to-air missiles, rockets, bombs, and nuclear weapons. The Demon had a swept-wing design with a single tail and a nose-mounted intake. It was powered by a Westinghouse J40 turbojet engine, which proved to be unreliable and underpowered, causing many accidents and limiting the performance of the aircraft. The Demon was later upgraded with a more powerful Allison J71 engine, which improved its speed and range, but not enough to compete with newer fighters. The Demon was eventually replaced by the McDonnell Douglas F-4 Phantom II in the 1960s.