F4U-1WM Corsair By: GIANNIS MITZAS

 F4U-1WM Corsair  BuNo 02460



To cope with the "kamikaze", our navy needed a subject who was optimized for action at low altitudes, with high speed and ascent rate.

Goodyear FG 1A Corsair NAS Μαύρο 3 BuNo 13374 στο Akron OH 28 Μαΐου 1944-01.The first Corsair with air duct on the upper part of the fuselage


The development of new aircraft took a long time, and the Fleet Air Force Bureau decided to select the characteristics of any fighter of an already built experimental aircraft. The soldiers' choice was to modify the Corsair - F4U-1WM fighter with the Pratt & Whitney XR4360 engine, which represents the four "stars" with a capacity of 3000 p. S. The resulting surplus power of 800 hp, compared to the production of Corsir , promised unprecedented flight features.

The first prototype aircraft was transported to Goodyear Akron (Ohio) for testing and future production. The contract provided for the construction of 418 aircraft in two versions: F2G-1 for the navy and F2G-2 for aircraft based on the carrier. The Goodyear aircraft manufacturing operation had to be delivered before the end of 1944








F4U-1WM Corsair BuNo 02460

It was finally Goodyear who took the F4U-WM project one step further in evolution.
An F4U-1, with BuNo 02460, produced by Vought Corporation, has been moved to Pratt & Whitney. This aircraft had a Lager cap to serve the Pratt & Whitney R-4360 Major Wasp.

The R-4360 was a 28-cylinder 4-row air-cooled radial adjustment mechanism. Each series of seven air-cooled cylinders had a small angular displacement from the previous one, forming a semi-helical device to facilitate efficient airflow cooling of the cylinder series behind them.

The Pratt & Whitney R-4360 Wasp Major was an engine with radial pistons designed and manufactured during World War II and the largest reciprocating displacement engine built en masse in the United States. It was the last Pratt & Whitney Wasp family and the pinnacle of pistol engine technology, but World War II ended before it could supply aircraft to battle.

This Wasp Major R-4360-4 - 2650 HP (1976 kW) engine was installed on May 23, 1943 and was launched on September 12, 1943 as F4U-1WM, WM means Wasp Major.
Pratt & Whitney examined the plane at its Harford plant in Connecticut.
The US Navy has seen some advantages in the configuration of the F4U-1WM.
Achieving this high-speed aircraft on a stretcher would allow this fighter to intercept enemy aircraft.
The F4U-1WM Corsair was powerful enough with the Wasp Major R-4360-4 engine, the next level of development the XF2G-1 Super Corsair used a sub-rudder during takeoff and landings to offset the torque of the 2650 HP engine.

Production number 480/ #13471 and 481/#13472 were FG-1A /XF2G-1.  They were fitted with the big engine, and a  4-blade prop.  A blue number "5" was painted on both sides of the Goodyear Chrome Yellow cowling, which was B.U. #13471.  Nick said they were both scrapped.   Nick also said that No. 5 went to the A.&E. school in Tennessee.  A Navy man and Corsair "buff" was at the school from 1945 -1955.  He wrote to me a few years ago, and said he never saw any kind of Corsair at the school with the big engine, and a #5 on the cowling




GIANNIS MITZAS