E-2D Hawkeyes appear before Pearl Harbor

What if three E-2D Hawkeyes appeared one week before Pearl Harbor?

They could give decisive warning and targeting information, provided their crews, fuel, radios, and command links were usable.

Three crewed Hawkeyes would provide early warning of the incoming raid and could track the Japanese carrier force. Their flight crews know the aircraft, but the American base would still need fuel, compatible radio links, and a way to plot verbal reports without modern digital data links. A week of ground integration could teach commanders what bearings, altitudes, and tracks the aircraft would provide while conserving flying hours. Maintenance is the fragile point: overusing the airframes before 7 December could consume parts that the contemporary base cannot replace. One concern is that Kimmel might impose routine searches and exhaust their service life, although Alex rejects that behaviour as inconsistent with Kimmel's reconnaissance background. If commanders preserve the aircraft and act on their crews' foreknowledge, surprise disappears and American forces could counterattack the carriers at sea.