Originally Posted by
RU4692
descending through 11000 for <10000 over 300kts, if you pull to idle and set VS for 800-900 ft per min, you will to slow to 250 right at 10K.
or level at 10,000, and you'll lose 10kts IAS for each mile at idle thrust. A 320kt descent would therefore need to be level and at idle thrust 7 miles from the fix you want to be at 250kts.
I also just build a fix of ABC/-7 so that the snowflake will provide guidance.