Originally Posted by
Capn Bloggs
Incorrect. That is what the thread is all about. Doubleback's explanation is spot-on.
Weight has a direct effect on the "gliding" aka idle-thrust descent range because we are descending at the same speed. The higher the weight, the more descent distance a jet needs at the ATC speed.
I stand corrected Captain, thankyou. I was an aviator, never much of an academic and less able to explain myself at times.