"Bonnie Lee" of the Martin B-26 Marauder 456th Bomb Squadron, 323rd Bomb Group, escorted by a Republic P-47 Thunderbolt from 377th Fighter Squadron, 362nd Fighter Group.
Grumman completely rebuilt the prototype as the XF4F-3 with new wings and tail and a supercharged version of the Pratt & Whitney R-1830. Testing of the new XF4F-3 led to an order for F4F-3 production model. Grumman Aircraft Engineering Corporation factory, Bethpage, Neew York.
