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class. This is intended to ensure that one vessel can be kept permanently at sea and a second at sea or on short notice to depart. The remaining two vessels would be in maintenance. On routine deployments, each vessel is expected to spend around 3 months at sea at a time. The vessels will, like
361:
The SNLE 3G submarines are expected to join the fleet from 2035 and remain in service until 2080–2090. The first steel will be cut for the vessels in March 2024 and completed submarines delivered at a rate of one every five years from 2035, with the programme completing in 2050.
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class. They are expected to have improved acoustic and magnetic shielding to reduce their visibility to detection systems. The vessels are expected to be otherwise similar in design to their predecessors. They will carry around 100 crew and be armed with 16
301:
came into service from 1997 and are due to be withdrawn around 2035. Initial studies for a replacement class began in 2017. The start of the general detailed design phase for the vessels was announced on 18 February 2021 by
Minister of the Armed Forces
332:. The supply chain will involve 200 companies and 3,000 people. The design phase is expected to require 15 million man hours of effort and the construction of each submarine 20 million man-hours. A memorandum of understanding has been signed with
340:
The cost of the project has been estimated by commentators at around €40 billion, though the
Ministry for the Armed Forces has said it is too early to provide an estimate. The design phase is expected to last around five years.
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to provide a full sonar suite for the new class which will include flank and bow-mounted sonar and a towed array. The suite will require the use of artificial intelligence to manage the increased data outputs.
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392:. It will be powered by a reactor design based on the K15 reactors used in the Barracuda submarines and the K22 reactors being designed for the
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beginning around 2035, and could remain in service to as late as 2090. Steel was cut on the first vessel in the class in March 2024.
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596:"Thales to Provide New-generation Sonar Suite for French Navy's Nuclear-powered Ballistic-missile Submarines"
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396:, allegedly incorporating several "significant" innovations over the Barracuda submarines.
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614:"La découpe de la première tôle du premier SNLE 3G finalement programmée le 20 mars"
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The vessels are expected to be slightly longer and larger in displacement than the
333:
241:
529:"Quatre nouveaux sous-marins nucléaires lanceurs d'engins pour la France en 2035"
497:"Cherbourg : Naval Group découpe la première tôle du prochain SNLE français"
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566:"SNLE-3G : le prix des sous-marins français est " classifié ""
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The plan is to construct four submarines, the same number as the
309:
The project is led by the French defence procurement agency, the
265:
Sous-Marin Nucléaire
Lanceur d'Engins de Troisieme Génération
471:"France Launches Third Generation SSBN Program - SNLE 3G"
315:
French
Alternative Energies and Atomic Energy Commission
279:. It is being designed as a replacement for the current
271:") is a class of submarines under development for the
378:
class, will be upgraded and developed in the future.
294:
The current French ballistic missile submarines, the
572:(in French). 19 February 2021. Archived from
374:. The M51, which is currently in use on the
16:French Navy ballistic missile submarine class
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317:. The vessels are expected to be built by
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527:Chapleau, Philippe (19 February 2021).
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469:Vavasseur, Xavier (21 February 2021).
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673:Nuclear submarines of the French Navy
495:Groizeleau, Vincent (21 March 2024).
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354:their predecessors, be based out of
275:'s nuclear deterrent, part of the
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418:
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311:Direction générale de l'armement
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219:Unlimited distance; 20–25 years
394:Future French Aircraft Carrier
1:
381:The SNLE 3G will feature an
237:100kt thermonuclear warheads
269:ballistic missile submarine
167:Ballistic missile submarine
689:
668:France defense procurement
267:"third generation nuclear
18:
447:Future of the French Navy
240:533 mm (21 in)
233:missiles with six to ten
210:pressurized water reactor
184:~150 m (490 ft)
157:
133:
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313:, with support from the
19:Not to be confused with
390:-class attack submarine
176:15,000 tons (submerged)
158:General characteristics
432:Views around the ship
385:as introduced on the
372:M51 nuclear missiles
345:Design and operation
602:. 19 February 2021.
576:on 19 February 2021
277:Force de dissuasion
46:-class illustration
33:
250:anti-ship missiles
153:Under construction
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663:Submarine classes
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321:in Cherbourg and
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620:. 11 March 2024.
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304:Florence Parly
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54:Class overview
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108:In commission
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639:. Retrieved
636:TechnicAtome
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600:Thales Group
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578:. Retrieved
574:the original
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537:. Retrieved
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478:. Retrieved
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334:Thales Group
323:TechnicAtome
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229:Nuclear: 16
173:Displacement
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580:20 February
539:20 February
535:(in French)
326: [
319:Naval Group
273:French Navy
87:Preceded by
81:French Navy
63:Naval Group
657:Categories
475:Naval News
453:References
376:Triomphant
367:Triomphant
356:ĂŽle Longue
351:Triomphant
297:Triomphant
282:Triomphant
205:Propulsion
92:Triomphant
632:"SNLE 3G"
570:L'Opinion
388:Barracuda
192:220
103:From 2024
69:Operators
441:See also
413:3D model
290:Planning
224:Armament
126:Building
59:Builders
641:10 July
261:SNLE 3G
134:History
118:Planned
44:SNLE 3G
30:SNLE 3G
21:SNLE-NG
480:13 May
181:Length
150:Status
94:-class
78:
32:class
330:]
299:class
284:class
216:Range
100:Built
643:2024
582:2021
541:2021
482:2021
259:The
244:for
208:K22
163:Type
246:F21
235:TNO
231:M51
659::
634:.
616:.
598:.
568:.
549:^
531:.
509:^
499:.
473:.
461:^
358:.
328:fr
306:.
198:hp
194:MW
645:.
584:.
543:.
503:.
484:.
263:(
200:)
129:1
121:4
23:.
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