Circa 1944 - 1967 (P4M Story)
A BIT OF HISTORY: "...Historic Aircraft by Norman Polmar - Author, Ships and Aircraft of the U.S. Fleet - June 2009 - Page 10-11 - Naval History, U.S. Naval Institute, Annapolis, Maryland (410) 268-6110 http://www.usni.org - Squadrons Mentioned: VP-21 , VQ-1 and VQ-2..." Forwarded by the U.S. Naval Institute/Jim Caiella http://www.usni.org/ [27MAY2009]
Historic Aircraft by Norman Polmar 410KB
"VP-21 History Summary Page"