In article ,
George Ruch wrote:

hobo wrote:

The corsair used a 3-blade prop. Why didn't they use a smaller 4-blade
prop if ground clearance was such an issue?

Check again, please: http://www.warbirdalley.com/f4u.htm

The F4U-4 had a four-blade prop, but earlier versions had three blades,
and include a large part of what saw combat in WW2.
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