Yes, Yankee's comments above pretty much speak for British English usage, as well as for American English. The initial
u in the
'consonant'
examples given by Yankee is invariably pronounced as
yoo.
As for British usage of 'An historic(al)', you will still occasionally find it, and I think one is supposed to drop the
h when pronouncing it, i.e. "An 'istoric(al)", but I suspect it'll die out eventually, and we'll all use "A historic(al)" instead.