Convention in helicopters puts the P1 on the right. Reason being that he can use his left hand for freq. changes etc. without having to swop hands.
Then a couple (hughes and enstrom) decided that he should sit on the left and build their machines this way.
Overtaking on the right is another reason to be left seated but ships also overtake on the right so that doesn't figure.
Single seat jets have throttle on the left, (as per sitting on the right) so your guess is as good as mine!
