I'm working on transcribing and posting a new document; CV-19 Hancock's radar summary for March of 1945. It's more interesting than that might initially sound, but there's one thing that I haven't come across before. Two terms, actually, describing altitude. The first paragraph on page 93 says: I would guess that "mattress" is sea level but was not able to confirm with a google search. Popeye, according to Tailhook.net is "What you are when you’re flying in the goo," which is not a lot of help (through the fog, perhaps?) Anyone know or have contacts who might?