Hello G3,
On the 60 series aircraft (61,62,63) you can plan 10,000 LBS to climb, 10,000 LBS used at cruise evry 45 min and 3000 LBS for the decent. Idle will be 100/min/eng. Hope this helps you.
------------------
The problem with the world is that everyone is a few drinks behind.
--Humphrey Bogart