"Jay Honeck" wrote in message news:VNwnb.51170$HS4.234123@attbi_s01...

But is that true of all airliners? I guess I would have thought that a
600,000 pound un-powered jetliner wouldn't glide very well.

They glide better because they have much less drag. They're slick and don't have
landing gear and other cruft sticking out (and what antennas and stuff they do have
are much smaller in ratio to the overall area).