On 01/22/2014 3:31 PM, Dave Nadler wrote:
Perhaps you were absent when a pilot blew a final glide from
the North, and landed on a street in a housing development
close to the airport?

The pilot would have blown his final glide regardless unless you are
implying that a 500 foot cylinder 1 mile away from the airport would
have magically improves a gliders L/D... It doesn't matter whether we
are aiming for a point 50 feet AGL at the airport, 500 at 1 mile or 1200
at 4 miles we still have to calculate a proper final glide. I much
rather be aiming at the airport that I can see than some fictional point
in 3d space...

Luke