Black Sheep Squadron just happened to come on so I thought I would take a look at the Corsairs used in the show - found this:
POOR LITTLE LAMBS – The Corsairs of Baa Baa Blacksheep
	
	
		
			
			
				
				A new exhibit tells stories aboard a WWII aircraft carrier turned museum.
				
					
						
							
						
					
					warbirdsnews.com
				
 
			 
		 
	 
A total of eight Corsairs, of varied backgrounds, participated in the filming: four FG-1Ds, two F4U-7s, one F4U-1A, and one F4U-4. Five were combat veterans, two have turned hot laps at Reno, and two later became Oshkosh Grand Champions.
VOUGHT F4U-7 CORSAIR Bu.No. 133693
		
		
	
	Bu.133693 (as 693) during her Aeronavale days on the deck of a French aircraft carrier. (photo via Stephen Chapis)
Black Sheep four-ship. (photo by Dan Friedkin)