On 1 October 1940, the XF4U-1 became the first single-engined U.S. fighter to fly faster than 400 mph (640 km/h) by flying at an average ground speed of 405 mph (652 km/h) from Stratford to Hartford. [15]

The XF4U-1 was the first fighter to exceed a speed of over 400 miles per hour with a full military load. The Corsair became one of the most famous World War II fighters with its contribution to the air and ground war in the Pacific theater.

XF4U-1于1940年5月29日首飞，试飞员是莱曼·布拉德，他又于10月1日在航空局面前展示了原型机的飞行性能。在试飞中XF4U-1的最大平飞速度达到了652km/h，成为美国首款最大平飞速度超过644km/h（400英里/时）的飞机。在完成了航空局的试飞后，1941年6月30日，美国海军与 ...

29 May 1940: Vought-Sikorsky Aircraft Division test pilot Lyman A. Bullard, Jr. took the U.S. Navy’s new prototype fighter, the XF4U-1, Bu. No. 1443, for its first flight at the Bridgeport Municipal Airport, Bridgeport, Connecticut. Designed by Rex Buren Beisel, the prototype would be developed into the famous F4U Corsair.¹.

XF4U-1. 四门AN/M2 .50，一台2000匹马力的R-2800“Double wasp”发动机，13ft4in的三叶螺旋桨，能把前轮塞进完全封秘的轮舱中

Type: Pratt & Whitney 18-cylinder, twin row, air cooled radial. R-2800-4. One .30-caliber machine gun.

2022年3月7日 · xf4u-1是沃特公司对海军高速、高空战斗机设计竞赛的回应。 海军在1938年2月1日发出的竞标，由雷克斯-比塞尔领导的沃特设计团队满足了。 仅仅两个月后的4月8日，沃特公司就提交了一份提案。

the naval fighter of its day. What emerged was the XF4U-1. The most obvious innovation of this single-engine monoplane fighter, powered by a 1,800-hp Pratt and Whitney radial engine, was the inverted gull wing. The XF4U-1 was the first fighter to exceed a speed of over 400 miles per hour with a full military load. The Corsair became one

On October 1, 1940, the XF4U-1 became the first US aircraft of any type to exceed 400 mph (644 kmh) in level flight, attaining 404 mph (650 kmh) during a flight between Stratford and Hartford.

On 1 October the XF4U-1 made a flight for Stratford to Hartford with an average ground speed of 650km/h (404mph). It was then the first US fighter to fly faster than 400mph. The XF4U-1 also had an excellent rate of climb.