Yellowshirts directing a F4U Corsair to its position in the static display, part of the US Navy Centennial celebrations at San Diego North Island Naval Station.
Everyone associated with the flight deck/apron has a specific job, which is indicated by the color of his deck jersey, float coat and helmet:
Yellow – Aircraft handling officers, Catapult and Arresting Gear officers Direct the movement of all aircraft on the flight/hangar deck.
Blue – Chocks and Chains. Entry level flight deck workers that work for the Yellowshirts.