Just a couple of observations:
SLF
The meaning of POSH. The oft quoted, 'port out, starbord home' is an old chestnut but does not appear in my Shorter Oxford dictionary which gives the origin of the word as unknown.
chiglet
Not quite sure how a Nautical MPH would be acceleration.
Thought a Nautical mile was 6080 feet not '2000 yards'
OK, I'll put my anorak on and s*d off now!
Smeagol