"Wright SR-1510 Whirlwind"@en . "14"^^ . . "2"^^ . "XFJ-2"@en . "4539"^^ . . "United States"@en . "600"^^ . "303.5"^^ . . . "Berliner-Joyce F2J"@en . "The Berliner-Joyce XF2J was the company's second biplane fighter for the US Navy. The XF2J was ordered on 30 June 1931 and although designated as a two-seat fighter, it was used as an observation aircraft."@en . "Two-seat Carrier Based Fighter"@en . "US Navy"@en . . "kts"@en . "The Berliner-Joyce XF2J was the company's second biplane fighter for the US Navy. The XF2J was ordered on 30 June 1931 and although designated as a two-seat fighter, it was used as an observation aircraft."@en . "315"^^ . . . . . . "4539"^^ . . "196"^^ . "0"^^ . "Berliner-Joyce"@en . "1"^^ . . "1"^^ . "Forgotten Fighters/1"@en . "two .30 caliber machine guns mounted in the upper wing root area"@en . "36"^^ . . "10"^^ . . . "1933"^^ . "28"^^ . "3210"^^ .