From: Arthur W. Brooks Sent: Thursday, February 21, 2008 12:08 PM To: Thomas G. Brown Subject: Impact of Port 12 and Outer AA Trim Coils Attachments: 022008.xls Tom, I looked back at what I did earlier before throwing out the Outer AA coil. My initial assessment that it would not have a significant effect was based on having the other Midplane Coils. When I redo the calculations without the Midplane coils, the impact is more significant. The configuration with Port 12 split shows a similar behavior. There does not seem to be a big impact from splitting the port 12 coil while keeping the AA coil. Art