Here F4F-4 Wildcat fighter No.13 (Bureau #5244), flown by the Executive Officer of Fighting Squadron Three (VF-3), Lieutenant (JG) William N. Leonard takes-off from the USS Yorktown (CV-5) on a combat air patrol, during the morning of 4 June 1942. Note .50 Calibre water-cooled machine gun at right and mattresses hung on the lifeline for splinter-protection.
