Originally Posted by
CZBB
Are you sure about that, and that it wasn't BWI ? DCA has pretty short runways, and a 707 is ground hugger, you'd be hard pressed to take off from the 7000' with enough fuel to reach Europe.
According to the Wikipedia article on DCA there's no mention of overseas carriers at all; and the BWI wiki article states
Google comes up with this -- but it was a Pan Am 707 that Mrs Eisenhower launched at DCA! Don't know why I remembered it as "Sabena" ...
https://www.airliners.net/forum/viewtopic.php?t=531019
http://www.aircargonews.com/FT11/B707PanAmlaunch.jpg
For what it's worth, Churchill arrived at DCA on a BOAC Stratocruiser. Possibly a refueling stop at Gander or somewhere else in the maritime provinces, though.
https://www.criticalpast.com/video/6...-Stratocruiser