Pitot Tube Question
I was asked the other day by a very experienced aviator about pitot tube design. Not wanting to make a fool of myself, I said I'd research this...
He asked about the right angle that is almost always evident in pitot tube designs. From a physics perspective (not engineering / aircraft system design perspective), does there always have to be a 90 degree bend in the pitot tube?
I reckoned there doesn't have to be, but that it is included purely as a design consideration.
Anybody know the answer?