Visible crew/equipment: At the end, after Father Mulcahy says goodbye to Sarah, when it cuts to a wideshot we can see two actors' rubber T-marks on the ground. The first is behind Father Mulcahy's feet, a white T-mark (albeit dirty) where Sarah had been standing, and the second becomes visible when Klinger runs over and bumps into Kellye, he kicks up some dirt which causes the black rubber T-mark to flip up off the ground.
Visible crew/equipment: When Marina arrives in the chopper with the wounded, the array lighting rig is reflected on the chopper's windshield.
Visible crew/equipment: When a very tired Hawkeye's in post-op checking on Marina in the morning, the shadow of the boom mic can be seen on the window curtain at the top, right corner of the screen.
Visible crew/equipment: After the troupe's performance in post-op, when it cuts to Brandy in Margaret's tent we can see the boom mic dipping into view at the top, right corner of the screen.
Continuity mistake: When the red head woman is playing the piano, it's a double. In the close up her hair is back and you can see her face. In the wide shots her hair covers her face so as to conceal the switch.
Factual error: When Winchester is shown in the Post Op, his oak leaf and medical symbols are on the wrong lapels.
Continuity mistake: As Potter pours the drinks for himself and Brandy, the glasses have enough for a sip. In the close up, they're a quarter to half full.
Continuity mistake: In Potter's tent, he holds the door for Brandy to enter. In the close up, you see him drop his left hand to close the door after she passes him and inside. After the angle change, his hand is back on the door, and she's just even with him walking forward.
Answer: The C-42 was a military variant of the Douglas DC-2. Very few C-42's were built, so it's questionable that Potter would specifically have seen that particular model, but, given his military background, it's not entirely unreasonable that he might use the military designation even when the aircraft in question is actually a civilian DC-2.
Tailkinker ★