The original technical specification dated September 24, 1997 has been
revised to this technical specification dated December 19, 1997. The
following items were revised:
- 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
- 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
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.
Last modified: Wed Jan 17 17:09:43 EST 2001