Continuity mistake: The mud spots on Lt.Smith's face change from scene to scene. (00:09:45)
Visible crew/equipment: After Henry meets with Colonel Blanche, the Luxembourg Commander, it cuts to Hawkeye in the Swamp continuing his recording to his father, and when Trapper describes his recipe for the dry martini we can see the open edge of the tent set and a spotlight at the top left corner of the screen.
Continuity mistake: As Lt. LeClerq stands beside his commander, the Commander starts to look to his left, and drops his hand. When the angle changes, he drops his hand again.
Continuity mistake: The syringe the "Mad Turk" threatens Henry with alternates between fully ready to almost empty between shots.
Continuity mistake: As he addresses Maj. "Chicken Lover", Lt. Smith's head goes from leaning left to leaning right between shots.
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 ★