DENIS SMITH wrote:

In practice the heavy one will go further.  The reason
for this is that in practice all descents are made at
the same speeds, especially below 10,000 ft where all
heavy iron will fly at 250 kts until restricted by
ATC.  It may be true on paper that both aircraft flown
at the "best" glide speed will go the same distance,
but in practice using the canned airspeeds airliners
typically use the heavy one will go further.

Ah-ha.........never flown outside the USofA huh?

Bob Moore
PanAm (retired)

 
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