English edit

Etymology edit

From the initial letters of "vectoring in forward flight".

Verb edit

viff (third-person singular simple present viffs, present participle viffing, simple past and past participle viffed)

  1. (aviation, of an aircraft) To change direction by changing the direction of thrust from the engine(s).

Noun edit

viff (countable and uncountable, plural viffs)

  1. (aviation, countable) A change in direction by changing the direction of thrust from the engine(s).
  2. (aviation, uncountable) The ability to make such changes in direction.