New French SSBN Fleet
Seems a lot faster than the UK Trident replacement programme - assuming it sticks to schedule of course....
https://www.defensenews.com/naval/20...-missile-subs/ France to begin building new ballistic missile subs PARIS — France has launched the program for its Navy’s third-generation nuclear-powered ballistic missile submarines, which will see four vessels eventually delivered to the service. The Navy is expected to received the first submarine in 2035, with the other three following at a schedule of one every five years. These four boats, known in France as SNLE (sous-marin nucléaire lanceur d’engin) “will replace the current [ones] without a break,” Armed Forces Minister Florence Parly announced last week. She said the subs will sail until 2090. “The last sailors to patrol on this SNLE third generation have not yet been born.” The contracting authorities are the DGA procurement agency and the Alternative Energies and Atomic Energy Commission. The project management will lie with Naval Group and TechnicAtome, the latter being the prime contractor for the nuclear boiler room. Thales announced it signed a memorandum of understanding with the DGA for the development of a complete sonar suite for the boats “based on disruptive technologies that represent a significant break from the systems in service today.” The company will provide new-generation flank arrays and bow-mounted sonars; a towed linear array based on optical technology; as well as intercept arrays, echo sounder technology and underwater telephones. The company said the new sonar suite will be incrementally deployed, with the first versions installed on the current SNLEs. Parly said the new submarines will be “slightly longer and heavier” than the current Le Triomphant class, which first sailed in 1995 and will continue to do so until 2050. She added that the vessels will “hear better and defend themselves better whilst at the same time being more silent: They will not make more noise than a school of shrimp.” Parly noted that given the extreme length of this program, France will “maintain a margin for evolutions [in the design], indispensable to take account of technological breakthroughs that we cannot forecast today — I’m thinking notably of cyber defense, improvements in acoustic stealth and the development of better-performing sensors.”...... |
Since when have submarines been classed as aircraft,this forum is military AVIATION.
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If you look around the thread is more accurately "military"
and, after all, these vessels are designed to fire a ballistic missile - which is "aviation" I believe |
"Seems a lot faster than the UK Trident replacement programme - assuming it sticks to schedule of course...."
What struck me was that they intend to keep the current SSBM's in service to 2050 - that's 55 years - a lot longer than the shelf life of either the USN or UK boats |
Since when have submarines been classed as aircraft,this forum is military AVIATION. |
Originally Posted by spitfirek5054
(Post 10996044)
Since when have submarines been classed as aircraft,this forum is military AVIATION.
Also the cough cough C-160 Transalls act as TACAMO cheers |
If you can have a thread about bloody BBQ's, I am sure you can have a thread about subs.
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Originally Posted by ORAC
(Post 10996008)
Seems a lot faster than the UK Trident replacement programme - assuming it sticks to schedule of course....
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Originally Posted by ORAC
(Post 10996008)
Seems a lot faster than the UK Trident replacement programme - assuming it sticks to schedule of course....
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Originally Posted by Asturias56
(Post 10996065)
"Seems a lot faster than the UK Trident replacement programme - assuming it sticks to schedule of course...."
What struck me was that they intend to keep the current SSBM's in service to 2050 - that's 55 years - a lot longer than the shelf life of either the USN or UK boats More broadly, these subs operate on sustained long patrols, so very predictable stress patterns. Combined with their well above average maintenance and support, I'd see no reason they could not go on for much longer.. Probably system obsolescence is an economic issue, although I've not seen any solid information on that. The report some years back that the Minuteman silos use computers working with 8" floppy disks does give a little perspective though. |
There was a discussion on here a while back - I think the Vanguards had a design shelf life of around 25 years (which was at least 5 years shorter than the USN "Ohio's") but that was stretched by overhauls to a target date of around 2028 for the first "Dreadnaught" - which would mean around 35 years in service.
God knows at what rate they can be produced |
A Mark 54 torpedo can be dropped from a Poseiden....That's aviation-related...
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Originally Posted by etudiant
(Post 10996337)
Afaik, US carriers are in service for 50 years and of course the youngest B-52 is coming up to its 60th anniversary, so 55 years does not seem out of line.
More broadly, these subs operate on sustained long patrols, so very predictable stress patterns. Combined with their well above average maintenance and support, I'd see no reason they could not go on for much longer.. Probably system obsolescence is an economic issue, although I've not seen any solid information on that. The report some years back that the Minuteman silos use computers working with 8" floppy disks does give a little perspective though. |
No harm in posting about subs here.
Gotta know what you're hunting... |
In the French language the airplane elevator is called « la gouverne de profondeur », litterally "the depth control surface". I think it is inherited from submarines, too
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Originally Posted by air pig
(Post 10996458)
If it works why change?
I believe the Kremlin went back to fully mechanical typewriters as a security measure, so the concept is well understood. |
Originally Posted by air pig
(Post 10996458)
If it works why change?
Often simply parts are no longer available or the manufacturer has long gone. Remember original manufacturers will only support a product up until a certain point then will cease spares manufacture, after all its in their own interest, why keep supporting a thirty year old product If there is money to be made flogging them a brand new sub and the spares for that. |
It could be said that subs fly when submerged.
https://www.stirling-dynamics.com/wo...arine-control/ https://www.sciencedirect.com/topics...ing/hydroplane |
Originally Posted by ORAC
(Post 10996082)
And a lot of military pilots hunt and track such boats....
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Originally Posted by Geordie_Expat
(Post 10996169)
If you can have a thread about bloody BBQ's, I am sure you can have a thread about subs.
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