PC, I would have to believe the patch is related to the ROC AF 35th Squadron. They were the "Black Cats " and I believe that is there logo on the scarf of the pilot.They flew Recon missions out of Taiwan over mainland China, North Korea, North Vietnam and Laos. They flew quite a few years out of Taiwan but had alternate landing bases in Kunsan, Korea and Takhli, Thailand. As the Vietnam war progressed , the 35th relocated to Takhli in early 65. Still all ROC pilots . They primarily flew out of there until late 74.