EF-10B (F3D-2Q) #125849 VMCJ-1 RM/5, Vietnam

Douglas EF-10B was an Electronic Warfare variant of the Douglas F-10 (previously F3D) Skyknight.
Modification of the Skyknights into EF-10B (known at the time as F3D-2Q) began sometime around November of 1956, roughly 35 were converted, a handful served in Vietnam.

Alternative F3D-2 China Lake Weapons Center in International Orange scheme