Sometimes You Hear the Bullet - S1-E17
Henry Blake: All I know is what they taught me at command school. There are certain rules about a war, and rule number one is that young men die. And rule number two is that doctors can't change rule number one.
Gen. Barker: What are you doing?
Radar: Doing, sir?
Barker: D-O-I-N-G. Doing. What are you doing?
Radar: Uh, listening to you spell doing sir.
Barker: Doesn't Col. Blake mind you drinking his whiskey and smoking his cigars?
Radar: Oh, very much so, sir.
Barker: Then why are you doing it?
Radar: Well, I don't mind, and I figured as long as one of us was being reasonable.
Frank: Haven't you two anything better to do when you're off duty than to lie around and swill gin?
Hawkeye: Swill gin?! Sir, I have sipped, lapped, and taken gin intravenously, but I have never swilled.
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 ★