From: Arthur W. Brooks
Sent: Wednesday, February 07, 2007 2:41 PM
To: Steve Raftopoulos; Thomas G. Brown; Wayne T. Reiersen; James H.
Chrzanowski; Robert A. Ellis; Phil Heitzenroeder; Michael Zarnstorff
Cc: Bradley E. Nelson
Subject: B2 Casting Measurement Comparison MTM vs PPL

Attachments: B2 Casting Meas MTM vs PPL.ppt

Folks,

Attached is the B2 Casting Measurement Comparison of the MTM data vs PPL. As with B1 and A4, the plots are an average of the available data - 2 points on base and 2 points on septum per clamp for the MTM data and 4 points on base and 11 points on septum per clamp for the PPL data. As with B1, the PPPL again shows a lot more variation (and a lot more out of tolerance) than does the MTM data. The maximum difference is ~0.050" (Side B Base)

We don't have PPL data for B3 or B4 yet but I will make the same comparison when it becomes available.

Art