......and is a timely reminder that the need to make smaller fighters was not recognised only by Grumman. The Fury began life as the 'Tempest Light Fighter'.
It has been a recurring theme that designers suddenly seem to realise that fighters are getting too big. The F-5 has been mentioned, there was also the Gnat, and most recently the Eurofighter single engine studies borne of Germany's misplaced desire to reduce costs by developing a completely new version of the Typhoon.
Even before the Fury and Bearcat there were attempts to 'simplify and add lightness' in types like the Martin Baker MB2 and Miles M20, but the Bearcat and Fury are undoubtedly the best examples from the pre jet age.