The counterstroke, however, did not come until a few minutes before noon as "Yorktown"s victorious aviators began to return to their ship. 18 Aichi D3A1 "Val" dive bombers came in to attack the carrier. Grumman F4F-4 Wildcat fighters from Fighting Squadron 3 (VF-3) accounted for 10 of the intruders, but the remaining eight managed to penetrate the combat air patrol (CAP). "Astoria" teamed up with "Portland" and the screening destroyers to splash another two of the attackers. The remaining six, however, succeeded in attacking "Yorktown", and three of those scored hits. One of the three hit the carrier's stack, causing fires in her uptakes that literally smoked Rear Admiral Fletcher and his staff out of flag plot. At about 1310, he shifted his flag to "Astoria".