"3.00 m"@en . "1995.0"^^ . "17040.0"^^ . "The Avro 521 was a British two-seat fighter first flown late in 1915, based on the 504. Only a prototype of the Avro 521 was built. It was powered by a 110 hp (80 kW) Clerget engine, with a provision for a .303 in (7.7 mm) Lewis Gun in the rear cockpit."@en . "nine cylinder rotary engine"@en . "0.055"^^ . . "at sea level"@en . "299.71999999999997"^^ . . "82"^^ . "0.091"^^ . . "266.0"^^ . "905.0"^^ . "plane"@en . "1150.0"^^ . "prop"@en . "522.0"^^ . "94.6"^^ . "9.14 m"@en . "1"^^ . "8.58m"@en . "82.0"^^ . . "858.5200000000001"^^ . "Avro 521"@en . . "24.71"^^ . "The Avro 521 was a British two-seat fighter first flown late in 1915, based on the 504. Only a prototype of the Avro 521 was built. It was powered by a 110 hp (80 kW) Clerget engine, with a provision for a .303 in (7.7 mm) Lewis Gun in the rear cockpit."@en . . "7.5"^^ . "1"^^ . . "1"^^ . . . "36.6"^^ . "Avro Aircraft since 1908"@en . "late 1915"@en . "110.0"^^ . . "Avro"@en . "One"@en . . "914.4"^^ .