@christineburns it would induce a pitch-down tendency for sure, but nowhere near as much as water. It’s still moving through the same fluid as the rest of the plane at this point: the air. All it does is lower the centre of drag (and increase it massively), but the aircraft would easily be able to counter it.
Not a massive amount of stress on the wheels too. Mach 3.2 is fast as hell, but it’s at 80,000 feet and the air pressure up there is tiny. Someone calculated that it’s like doing 330 knots at sea level. That would be deeply unpleasant and probably cause significant injuries to a human, but the plane would be just fine. It’s just utterly wrecking the aerodynamics.