A 2001 vintage 737 departing as an even older -400 rolls down the BOS runway
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/33786885585/">Southwest 737-700 N797MX at BOS</a>