Transterrestrial Musings: "In this post, some have expressed skepticism about comparisons between marine hardware and space hardware. Fair enough (and amusing that such a minor item out of the post has consumed all of the discussion about it).
Here's one that will be harder to argue with. XCOR Chief Engineer Dan DeLong has experience in both worlds, and offers this little tale:
In the mid 1960s, the U.S. Navy decided to upgrade its capability to rescue crewmen from a stricken submarine. The McCann diving bell had been in service for over 30 years and had severe operational drawbacks. A new program to develop a submersible that would perform far better was started. The Navy contracted with Lockheed Missiles and Space, and the two Deep Submergence Rescue Vehicles were created. The first DSRV was built for $41 million . The two DSRVs performed well in trials (they have never been called to do their primary mission) and are still in service today.
A decade later, the British Royal Navy decided it also wanted such a capability, but it did not have the money to commission copies of the US Navy boats. So the Royal Navy went to Vickers Oceanics (now part of British Aerospace) who were in the business of supporting North Sea oil drilling operations with manned submersibles. Vickers and the Royal Navy agreed to have a new boat built that would serve commercial purposes in everyday life and be reconfigured for the occasional Royal Navy rescue mission. (One could argue that such a dual-purpose boat would be more expensive than a simpler, single purpose boat.) Vickers contracted construction to a U.S. company that built commercial oil field submersibles, Perry Oceanographics. The boat performed well as the Vickers VOL-L1 for both commercial oil drilling support and occasional practice rescue operations for the Navy. Perry"
Here's one that will be harder to argue with. XCOR Chief Engineer Dan DeLong has experience in both worlds, and offers this little tale:
In the mid 1960s, the U.S. Navy decided to upgrade its capability to rescue crewmen from a stricken submarine. The McCann diving bell had been in service for over 30 years and had severe operational drawbacks. A new program to develop a submersible that would perform far better was started. The Navy contracted with Lockheed Missiles and Space, and the two Deep Submergence Rescue Vehicles were created. The first DSRV was built for $41 million . The two DSRVs performed well in trials (they have never been called to do their primary mission) and are still in service today.
A decade later, the British Royal Navy decided it also wanted such a capability, but it did not have the money to commission copies of the US Navy boats. So the Royal Navy went to Vickers Oceanics (now part of British Aerospace) who were in the business of supporting North Sea oil drilling operations with manned submersibles. Vickers and the Royal Navy agreed to have a new boat built that would serve commercial purposes in everyday life and be reconfigured for the occasional Royal Navy rescue mission. (One could argue that such a dual-purpose boat would be more expensive than a simpler, single purpose boat.) Vickers contracted construction to a U.S. company that built commercial oil field submersibles, Perry Oceanographics. The boat performed well as the Vickers VOL-L1 for both commercial oil drilling support and occasional practice rescue operations for the Navy. Perry"
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