Just to throw this into your discussion...
The glide ratio of a 747 is close to 18:1 -
My answer to those who say "a jetliner glides like a brick" -
My opinion - lightplanes glide like bricks.
xxx
Often played the game of IDLE descents from FL390 to 1000 ft AGL/MSL -
Gliding distance is generally 110/120 NM (no wind factor) -
xxx
Oh sure... I admit there is residual thrust of the 4 engines...
We do not shutdown the motors at TOD and relight at outer marker to impress you further.
xxx
Now ready to be accused of reckless flying -
Trouble is, among the many who practiced similar games were... chief pilots.
Yes yes, I know - with YOUR airline, you are professionals and do not indulge in such.
xxx
Happy contrails