Revision Summary

• Section 4.1 now lists the materials properties requirements for S-200F-H. The original specification asked for information with the offer. This information was provided and is now incorporated in the specification.
• Section 4.5 now states that there will be no braze joint between the Inner and Outer Central Skins. The original specification had this as an option.
• Section 4.6 now states the central manifold ends will be made from 5000 series aluminum. The original specification used stainless steel.
• Section 4.6 was further modified to state the central manifold ends will be joined to the beryllium tubes by electron beam welding. The original specification used brazing.
• The Cornell Drawings Set 6058-025 thru 6058-031 have been changed to Revision A. Revision A includes changing the central manifold end material, and small changes to the part details of the central manifold ends and beryllium tubes to accomodate the electron beam welding of the joints. The clearance between the inner central skin and the outer central skin was also reduced. 6058-040 Inner Central Skin/End Collar Sub-Assembly has been added to the drawing set.
• Section 4.9 now state the inner channel will be epoxy coated along with the external skin.