Re: US Navy Sqn Designations in WW2
Larry. Mike's links explains the unit's functions ie. PB=Patrol Bomber but the last letters are manufactuer's designations; "Y" in PBY is for Consolidated / Convair and the "V" in PV is Lockheed / Vega. The first letter is the primary function, Patrol here.
Similarly the "U" in F4U is the Chance Vought factory.
Nick
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