HomeMy WebLinkAboutItem 1 - Cheyenne Mid-Term Update - HC Staff Report aEW Ppgr
CITY OF
NEWPORT PORT BEACH
Harbor Commission Staff Report Agenda Item No. 1
March 11, 2015
TO: HARBOR COMMISSION
FROM: Public Works Department
Chris Miller, Harbor Resources Manager
949-644-3043, cmiller@newportbeachca.gov
TITLE: Cheyenne Mid-Term Update (March)
ABSTRACT:
Per the Harbor Commission's action at the November 2014 meeting, the Commission will
conduct a mid-term review of the vessel Cheyenne as submitted by Mr. Chris Welsh.
RECOMMENDATION:
1. Receive and file.
FUNDING REQUIREMENTS:
There is no fiscal impact related to this item.
ENVIRONMENTAL REVIEW:
Staff recommends the Harbor Commission find this action is not subject to the California
Environmental Quality Act ("CEQA") pursuant to Sections 15060(c)(2) (the activity will not result
in a direct or reasonably foreseeable indirect physical change in the environment) and
15060(c)(3) (the activity is not a project as defined in Section 15378) of the CEQA Guidelines,
California Code of Regulations, Title 14, Chapter 3, because it has no potential for resulting in
physical change to the environment, directly or indirectly.
NOTICING:
The agenda item has been noticed according to the Brown Act (72 hours in advance of the
meeting at which the Harbor Commission considers the item).
Submitted by: /
Chris Miller
Attachment: A. Cheyenne March Update
Miller, Chris
From: Chris Welsh <chris@deepsubllc.com>
Sent: Thursday, March 05, 2015 9:21 AM
To: Miller, Chris; David Girling
Subject: Deep Sub Update
March 5, 2015
Chris, Dave and Harbor Commission Members-
Work is proceeding on the dome polishing with the newly created tool. I pinged them for photos but
have not had a set come back in time for this submission; I am sure I can get them by the meeting
next week and bring them along on a flash drive. Being in polish as opposed to grinding is a big step
forwards. Give it to somewhere in early April to complete the polish, do QC, and then handover to us
of the part.
In the mean while, I met last week with the QC/NDT people for the dome and a whole QC analysis of
the pressure hull, and then again Tuesday in Sacramento with those people plus the subcontractor
that will be removing the current dome from its titanium ring and moving that ring over to the new
dome. This Ti ring and its opposing mate are the heart of problem with the old dome; there will be re-
working of the Ti rings at this juncture to address those issues, and one of the rings may need to be
remanufactured. Certain elements of the ring are within the bond area and will not be visible until the
current dome is unmated.
The sub & shop container are moving to San Rafael in mid April as part of all this work; this puts the
project closer to the Sacramento subcontractor and other tech support in the Bay Area. The dome
transfer work can be forecast to use the month of May and re-assembly of the pressure hull the early
part of June. From there, we will drive the whole pressure vessel to Penn State for testing, with the
pressure test work being done in July. Presuming success, the pressure vessel comes back to SF for
mating with the sub again and return to in water testing and operation in August.
This is a three paragraph short version of what will be several hundred to a thousand hours of labor
plus a great deal of logistics over the next several months. It is inevitable that the schedule will slide;
none of it could be expected to go faster than forecast, and there are a multitude of points that could
necessitate a side effort to address a problem not currently in evidence. For example, the one Ti ring
will be released with heat to break the bond and the other with liquid nitrogen; either process could
warp a ring and we would then have to produce a replacement. We will be using all efforts to avoid
that of course.
The ultimate litmus test is the pressure test and that is when the surety of the program schedule is
determined. A good outcome follows the schedule above; a lesser outcome means substitute
solutions that we have already identified would need to be pursued. The good news is we have paths
available to solve any issues that may arise with the dome or the carbon tube.
1
Overall, the program is accelerating at this time on all fronts and that is exciting.
Best regards,
Chris Welsh
+1949-278-2012 cell
2