Junkers-Larson 12. A ground attack aircraft from 1921.

I posted these photos the other day on our companion blog, Lex Anteinternet

Gen. Mitchell was checking out aircraft.

Thompson submachine guns made the press

Lt. Gen. Wise & Lt. Brooks Hyde-Pierson, 10/21/21

I didn't realize at the time I did this, that these were photographs of the same thing.  One Junkers JL12 ground attack aircraft.

It's hard not to view this as anything other than "goofball", but then this was in the early days of aviation and there was a lot of experimentation going on.

The Junkers-Larson 12 was a militarized version of the Junkers F13, the world's first all metal transport aircraft.  The origins of the F13 actually extended back to World War One, but its first flight came in 1919, so it came too late to see service in the war.  Obviously, it represented a big step forward in aircraft design, so perhaps it isn't too surprising that it was militarized pretty quickly.

If oddly.

The aircraft was equipped with 30 Thompson Submachine Guns.  They were operated by single levers in two batteries, with most of them firing straight down.

The Thompson was brand new that year, although its origins also dated back to World War One, for which it had been designed, but which it missed seeing service in as the early variants didn't come out until 1919.  1921 was the first year of real production.

Hap Arnold with Liberty V12 engine.

The JL-12 was equipped with a Liberty V 12 engine, which may explain its name.

Did anyone buy them?  

Well, I don't know.  It was an interesting idea that foreshadowed later aircraft like Douglas AC-47 Spooky and the Lockheed AC-130, so the whole concept wasn't as absurd as it at first might strike us.  The problem would have been that Thompson's in .45 ACP wouldn't have really given the advantage of altitude that an aircraft needs.  If many were made, it probably wasn't very many.