Shark 170 was in PE (a periodic maintenance inspection) and Gary Harter was still painting the new panels for Shark 507. For cosmetic reasons, rather than do a mission without panels, Carty put 170's Ace-of-Spades panels on 507 until 170 was out of PE and the new 507 panels were complete. (Got that?) This is a south downwind to Duc Pho (on left) in December 1970. Shark 107 was shot down and lost during Lam Son 719 and reportedly transported to Hanoi by the NVA.