[NorthMountain]

sounds more manlier

That would be a matter of personal taste ... and I bet you had to look up 45DT and 47DT, same as I did.

“n” number

I know civil registration numbers are almost never painted on the tail ... but calling it an "n-number" has always sounded stupid to me. They only start with "N" in USA.

[heavy metal]

negative...

i didn’t look anything up...

and it’s called an “n” number because it starts with an “n”... 😁