The Honourable Schoolboy (George Smiley, #6; Karla Trilogy #2)

by John Le Carré

Perhaps a more realistic point of departure is a certain typhoon Saturday in mid-1974,

The harbour had dug out all its finery. At its centre an American aircraft carrier, floodlit and dressed over-all, basked like a pampered woman amid a cluster of attendant launches. On her deck, a line of helicopters and small fighters reminded him of the air base in Northern Thailand.

Most likely an LPH if what he saw were mostly helicopters.