The only one up there that I know to be true is the 27 feet of ammo and the expression “the whole nine yards.” But it only applied to the P-51 Mustang. Other aircraft had differing amounts.
And the most common use of the phrase was after a young pilot got caught sneaking onto the base after a night out with his English girl friend. To a common question, “well, did you get into any trouble?” The usual reply was, “yea, they brought me up in front of the old man and he gave me the whole nine yards.”
She just commented the other day about how the people who know where came from are dying off. (Pilots had access to silk when it was hard to find.)