I looked up the MDW airport diagram and the 31C ILS...
The threshold is displaced, so the available landing
distance is only 5800 instead of the 6300 feet of concrete
(numbers rounded). The ILS glide slope will intersect the
runway half way along the touchdown zone which is 1500 past
the beginning of the landing area. That means that if the
airplane landed without any float in the flare it would have
4300 feet of icy and snow packed runway to stop on before
departing the paved surface. If it floated to the end of
the touchdown zone, where a go-around is required by FAR, it
would have only 2800 feet on which to stop.
I would like to know why the PIC did not divert to O'Hare or
some other airport. Seems pretty simple , the plane stopped
right where a calculation indicates it would stop.


--
James H. Macklin
ATP,CFI,A&P

"Paul kgyy" wrote in message
ups.com...
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