new_CFI wrote:

Isnt there a supervised solo for situations like this? An instructor is
onbord to supervise the solo flight, but it still counts as solo? I think
the school I went to did this, ill have to look it up.

solo is defined in the regs, and that means noone else on
board (the only exceptions I can recall concerns airships);
Now, the British on the other hand have some weird logging
regulations that include a Pu/s (pilot under supervision)
different from instruction; is this what you had in mind?

--Sylvain