Dennis O'Connor wrote:
You absolutely, flatly, cannot turn back and you will die if you try...

Idiotic stupid thing to say. You have to find the altitude that you can
make the turn in. In my 182 it is 350 feet to get back to the runway I
took off from, opposite direction. 200 feet to just do a 180 and land
on a parallel runway or taxiway. Add a certain amount for the oh ****
factor and I will turn around unconditionally at 450 feet. Less if I
have another runway or taxiway to come down on.