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fishrichard · January 2nd, 2008, 22:40

My rule of thumb for descents is this..The good ole three-to-one,16000-6000=10000, so take 10 multiply by3= 30. So 30 miles out of ohboy is when I'd start my decsent. BUt how fast would you'd desend? Say your ground speed is 400 kts. Just half any ground speed, in this case 2000 fpm outside of ohboy would allow you to make the restriction. It sounds time consuming, but it comes pretty naturally after a few times.

January 2nd, 2008, 22:40	#6
fishrichard Junior Member Join Date: Aug 2003 Location: Nashville, TN Posts: 87	Re: ATC Crossing Restriction My rule of thumb for descents is this..The good ole three-to-one,16000-6000=10000, so take 10 multiply by3= 30. So 30 miles out of ohboy is when I'd start my decsent. BUt how fast would you'd desend? Say your ground speed is 400 kts. Just half any ground speed, in this case 2000 fpm outside of ohboy would allow you to make the restriction. It sounds time consuming, but it comes pretty naturally after a few times.