What QNH would you use if ditching?
Was having a discussion with one of our Captains today and he asked me this question.
Night, engines failed, no radio altimeter obviously, what QNH would you set?
After thinking for a second, I figured of course it would be the Current QNH.
He was very convinced that he should set standard.
I don't see how standard would be useful considering you almost never have standard pressure or temperature.
If Current QNH will show you elevation at airdrome when youre on the runway, shouldn't it read 0 above sea?
I'd appreciate input on this.
Also while on this topic, another irrelevant ques, I am trying to remember the little concept from flight school.
When youre at std 1013, and change to QNH which is 1030.
Changing from low to high gives you a lower alt.
LOW - HIGH - LOW
Just making sure this is correct.