Where is
@5Ali3 when we need him/her?
According to the
technical panel handbook for pairs
Also
But I don't think that's what you're referring to.
All rotational jumps in skating rely on rotation that begins as the skater leaves the ice, most rotating in the same direction as the takeoff edge, counterrotated jumps like lutz and walley working against the entry edge to reverse direction. You can't really jump up in a straight line with no rotation at all until after you leave the the ice. The rotation begins on the ice or at the point of takeoff and then accelerates as the skater pulls in in the air; it doesn't start from nothing after the skater is in the air.
With a salchow, the takeoff edge is already rotating on the ice and the skater just increases the speed of that rotation in the air by pulling in.
I don't know as much about pairs technique and throws, but my understanding is that the the rotation starts from when the lady's blade leaves the ice same as if she were doing the jump on her own.
We could use someone who has actually done pair skating and preferably served on a pairs technical panel to clarify.