When the Black Sheep reach the aircraft carrier, the approach shot shows the emergency barrier deployed--though it's not used in the landings. When Boyington approaches the carrier, the barricade is gone, but the back half of the flight deck is covered in parked aircraft.
Toward the end of the show one of the aircraft crashes on the carrier and the airplane shown is not an F4/U which is what the Black Sheep Squadron flies.
It is supposed to be a dead stick landing without the engine running. The propellers are turning when they land.
Near the end of the episode, there are several shots from the pilot's point-of-view, of the aircraft carrier, called USS Princeton. In all but one of the shots, the carrier is an angled deck ship, but no carriers in WW2 had angled decks. That was a 1950's innovation.
At the beginning as Capt. Gutterman and Lt. Boyle are on patrol Gutterman tells Boyle, "I'm in command, and I don't want to talk to you on the ground about it, Larry," - Bob Boyle is played by Larry Manetti.
Breifly when Boyington has cut his engine to make a dead-stick landing on the abandoned Japanese runway, you can see the wing of a blue airplane that is filming the events, on the bottom left corner.