Frank: What kind of a jackass do you think I am?
Radar: Oh, you'd know that better than me, sir.
Hawkeye: I will not carry a gun, Frank. When I got into this war, I had a very clear understanding with the Pentagon: no guns.
Frank: Humpf!
Hawkeye: I'll carry your books, I'll carry a torch, I'll carry a tune...I'll carry on, carry over, carry forward, Cary Grant, cash and carry, Carry Me Back to Old Virginny. I'll even Hari Kari if you show me how, but I will not carry a gun!
Henry Blake: Klinger! It's four o'clock in the afternoon and you're still in a housecoat? Put on a dress! You never know who might be coming around.
White Gold - S3-E23
Frank: Well, he, uh, ordered me to leave. He's a superior officer.
Henry: He's a superior psycho. His head's so twisted, he's gotta screw his cap on.
Mad Dogs and Servicemen - S3-E13
Frank: Corporal Travis, Richard. To Tokyo. Typical psycho case, shell shock.
Trapper: Frank, that's straight outta World War One! Nobody thinks shell shock anymore.
Frank: Oh, what's the diff? Too much action gets them in the old brain box; makes even the best soldier gaga.
Trapper: Frank, I defy you to show me a medical book that lists the word 'gaga'.
Frank: [after Hawkeye hits him] Captain Pierce, I accuse you of striking a superior officer. A court-martial offense under the Articles of War. And I have two witnesses!
Trapper: [to Hawkeye] I didn't see anything, did you?
Hawkeye: My back was turned. [Drops towel in Frank's face.] BA-DUM-BUMP!
Trapper: Case dismissed.
Frank: [on Margaret's request] I just can't do it, Margaret. It just rubs against the grain. "Neither a lender nor a borrower be." Polonius.
Margaret: "To give, and not count the cost." St. Ignatius Loyola
Frank: "The holy passion of friendship is of so sweet, and steady, and loyal and enduring a nature, that it will last throughout a whole lifetime if not asked to lend money." Mark Twain.
Margaret: "Blow it out your ear!" Margaret Houlihan.
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 ★