Saville wrote:
Please correct me if I'm wrong but didn't the F6F, F8F, P-47, and F4U all used the same engine: R2800?
If so, what accounts for the discrepancy in performance between the F6F and the other three? IIRC the F6F top speed was lower by quite a bit. Is this due to a selection of superchargers?
thanks
They all did use the R-2800, although different variants. I suspect the major difference in performance came from design philosophy.
The P-47 was very fast, particularly at altitude and in a dive. On the other hand, it didn't climb particularly well, nor was it competitive in a turning fight, and its takeoff roll was long compared to the carrier fighters. All of those deficiencies were caused in part by the aircraft's heavy weight. Being a landbased fighter, it had a vastly different set of design requirements than the Navy fighters. In particular its stall speed would have made it a disaster in carrier operations, even if it had a tailhook an the accompanying structure for carrier operations.
The Corsair was designed to go fast. Sacrifices were made in outward visibility and low speed handling to achieve higher performance. Without the pressing need from the war, the Navy may have never put it on a carrier. Compared to Grumman's products, it was alleged to be substantially more difficult to fly "around the boat".
On the other hand, Grumman's philosophy when designing the F6F seemed to be to build a good performing (though not stellar) aircraft which was easy to fly and a good gun platform. Big airframe, lots of wing, with the pilot sitting way up high for good visibility. That philosophy probably really benefitted a lot of 22 year old, 300 hour pilots.
The F8F, on the other hand, was a <relatively> lightweight fighter designed as an interceptor. It compromised range and load carrying ability for speed, maneuverability, and climb performance. Also, it had the benefit of being a 2-3 year newer design compared to the others. As rapidly as aeronautical engineering was progressing back then, that made a difference.