Must be a long standing Forces thing - I'm (re)reading Alistair McLean's "Guns of Navarone", and this crops up in Chapter 2:
"Coffee, sir?". The young air-gunner was still
standing patiently by his side, the
inverted lid of an ammunition box serving
88 a tray for the cups he was carrying.
"Sorry, boy, sorry.- Mallory struggled
upright in his seat, reached up for a cup of
the steaming liquid, sniffed tt
appreciatively. «Thank you. You know, this
smells just like real coffee.*
•It is, sir.- The young gunner smiled
proudly. «We have a percolator in the
galley.*
«He has a percolator in the galley.*
Mallory shook his head in disbelief. «Ye
gods, the rigours of war in the Royal Air
Force!» He leaned back, sipped the coffee
luxuriously and sighed in contentment.