^^ Obviously OR can change to asym, but they may not work as well on OR.
Amusing that GD agrees to help AR only and not OR.
As for IM, as already wrote, he will rewrite the MEP in order to..................help OR-AR :)
Basically the more forward position of OR main foil obliges them to have more lift from the rudders ?
Which obliges them to position their rudders aft at the max of the rule and have it wider than the stern ?
So they are left with either increasing the cord and making more drag or increasing...
So, it seems that SB is confirming that TNZ-AR measure and that the new regulations would have been implemented to make OR-AR legal. Obviously for safety....