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A F6F Hellcat has a maximum speed of 330 kn (380 mph, 610 km/h)
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The Grumman F6F Hellcat was a carrier-based fighter aircraft developed to replace the earlier F4F Wildcat in United States Navy service.
Source: Wikipedia
A Grumman Hellcat F6F-5 could fly about 376 mph at altitude.
The Grumman Aircraft company made the famous series of naval fighters including Hellcat, Wildcat and Tigercat.