Aircraft from around San Francisco Bay Area

Here are four aircraft photographed in various times in various locations of San Francisco Bay Area.  The Ford 5-AT-B Tri-Motor was photographed in Hayward, CA during the EAA visit to that airport.  The General Motors FM-2 Wildcat was photographed on board USS Hornet in Alameda, CA.  A very early Douglas A4D-1 Skyhawk is a gate-guard at the former NAS Alameda.  And finally the Lockheed ER-2 (NASA version of the U-2) was shot at Moffett Air Museum in Sunnyvale, CA.