Originally Posted by
mikebg
Not quite correct. 10:28 also includes 'tosefet shabbat'. There is a disagreement as to the definition of 'nightfall' between different authorities. LBD follows the slightly more lenient approach, whereas the 'Adas' communities follow a slightly stricter approach. The difference varies, but is at most about 10/11 minutes (in the spring and autumn it is about 7 minutes).
I hope that this discussion between you is just a good natured Halachic discourse.
It is a known fact that EL AL does fly on Shabbat, be it Sun D'or which is EL AL in disguise, unmarked planes, "training" flights etc.
I live near the airport, and EL AL flights can be seen in the air on Shabbat
The fact that the plane leaves the runway after Shabbat is over , does not lessen the Chilul Shabbat involved in getting that plane in the air.
We unfortunately look the other way, or conveniently disregard the facts, but let us not fool ourselves in saying that it does not fly on Shabbat