Draught is a variant spelling of
draft and is normally pronounced the same way, as
[draft] /dræft/ (Show IPA) or
[drahft] /drɑft/ or with a vowel somewhere between
[a] /æ/ and
[ah] /ɑ/ . A pronunciation
[drawt] /drɔt/ is sometimes heard for draught, perhaps because
-aught is frequently pronounced
[-awt] /-ɔt/ elsewhere, as in
caught and
taught.