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Archive for December 7th, 2008

Another Bit of “Shuttle Derived” Jettisoned

Well, unless one claims Shuttle heritage from the stillborn ASRM program – I must have missed this bit of news when it first emerged in August, but I was busy at the time with the Democrat convention:

Cook would like to get industry involved as early as possible. He stated that a point of departure design has been identified, along with key technology areas, such as a composite case booster. He noted that lessons learned from the Ares 1 vehicle integration are being applied, as well as from previous contract constructs.

The fact that NASA is learning from the Ares 1 experience and applying those lessons to Ares V shouldn’t be surprising, and in fact should be encouraging in a way. The question is whether they’re learning the right lessons from Ares 1. Given NASA’s desire to build an über-launcher, and the problems experienced with Ares 1’s solid first stage, perhaps there are other, more cost-effective ways to hit Ares V’s intended performance targets besides developing largely from scratch yet another solid rocket that merely looks like Shuttle’s to use as a booster.

Recalling that the ASRM program spent about $2B in early 1990s dollars before being scrapped (without ever entering production), the additional cost to Constellation of the change to a composite motor case should re-open the trade space to those Shuttle-derived booster concepts which entail large liquid engines but use truly Shuttle-heritage SRBs (or no SRBs at all). (For comparison, per Dwayne Day the estimated cost of the F-1 engine development program in 1991 dollars was $1.7B.) So, if building a big booster is what NASA wants to do for Constellation, and the new administration sustains that approach in its space policy, the cost associated with the apparent need to change to a composite SRB casing ought to motivate some re-thinking about exactly what that big booster should look like.

This discussion was also interesting:

He stated that the contracting approach includes maintaining NASA ownership of overall Ares V vehicle system architecture and key discipline areas; there will be government led contractor teams acquired through dedicated contract activity; the contracted work will involve severable entities with clear evaluation criteria so NASA can go elsewhere if needed; 5 work packages are being considered; and the request for proposal is in development with an aim to release it mid-December. He noted that when the NASA civil servants feel ownership of the products, the morale, excitement, and quality goes up dramatically.

Whether the quality, etc. goes up depends at how far down in the details “ownership of the products” goes, and how stable, clear, and predictable the working relationship is between the civil servant “owners” of a product and the contractors doing the work. Speaking from experience on a number of programs, having a constantly-shuffling team of masters adversarially challenging details whose background they are unfamiliar with, repeatedly demanding answers to questions already answered for others with whom they haven’t communicated, issuing vague and shifting requirements, and mandating significant changes and unstudied “improvements” is not a recipe for contractor morale, regardless of the benefits to the morale of the civil servants involved. In contrast, a clearly-defined “ownership” relationship between the agency and its contractors, stability in the requirements and processes and leaders in the program, and good communications and cooperative, non-adversarial relationships among the people involved at the working level go a long way towards improving morale, excitement, and quality all around. It’s natural that a customer should have involvement in a project they are after all paying for, but the nature and extent of that involvement is also important to the end result.

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Nice

A GMD interceptor has once again worked in a test firing.

As alluded to in the post, one has to wonder just how much “proof” the Obama administration will require to “prove” that missile defense at all levels is “proven technology”…or whether that vague standard is just weasel-words to rationalize an eventual pullback from Bush administration plans for deployment and international participation.

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One of a Kind

Say goodbye to a submarine you probably didn’t even know existed:

The specialized submarine has performed a variety of missions that included search, object recovery, geological survey, oceanographic research, and installation and maintenance of underwater equipment. Following the loss of the Space Shuttle Challenger in 1986, the NR-1 was used to search for, identify and recover critical parts of the Challenger spacecraft.

She has also recovered weapons from the ocean floor in 1976, discovered three wrecks along the Mediterranean trade route at the Skerki Bank in 1995, surveyed the remains of the USS Monitor and USS Akron in 2002, and explored the Flower Garden Banks in the Gulf of Mexico in 2007…

According to the U.S. Navy fact file on the deep submergence craft, the NR-1 can perform a variety of tasks, including underwater search and recovery, oceanographic research missions and installation and maintenance of underwater equipment, to a depth of over half a mile.

Its unique features include extendible bottoming wheels, three viewing ports, exterior lighting and television and still cameras for color photographic studies, an object recovery claw, a manipulator that can be fitted with various gripping and cutting tools, and a work basket that can be used in conjunction with the manipulator to deposit or recover items in the sea.

The submarine also contains sophisticated electronics and computers that aid in navigation, communications, and object location and identification. It is capable of maneuvering or holding a steady position on or close to the seabed or underwater ridges, detecting and identifying objects at a considerable distance, and even lifting objects off the ocean floor.

Impressive. And as with the SR-71, a tiny little conspiratorial part of my brain wonders if this thing is being replaced because something new and even more capable has come into operation…

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