CTD,
Let's bet a steak dinner right now, before you start checking. Please talk to your pilots, or call Jim Arnold of the FAA Rotorcraft Directorate at Fort Worth.
I first saw those charts in the hands of a Saudi Colonel who was planning a mountain rescue mission, using the Bell 412 "wind from within 45 degrees of the nose" chart. This is not a hangar flying story. I couldn't believe it, so I called the head of the Rotorcraft Directorate directly to discuss it. I attached a copy of the Bell 430 chart to a letter I wrote to a North Carolina legislator when Bell proposed to fly their Governor at the no-yaw-control weights. That Governor flys in an S-76C+ now.
I note you say these charts are "not current today". Do you have knowledge that these charts were withdrawn? From all models?
[ 27 October 2001: Message edited by: Nick Lappos ]