Originally Posted by Avionero
Doesn´t that depend on which airspace you are flying in?
- since the two are to all intents and purposes the same, no! The original question was which was correct, 1013 or 29.92 and the answer is 1013 is technically WRONG since the correct setting is 1013.2, BUT, since it is impossible to read 0.2mb, it is easier to set it using the inches scale. Setting 'STD' on a 737NG will set 1013.2, not 1013, and presumably AB the same.