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DCN-PA-2 and DCNS Carrier Designs

donnage99

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Interesting that they have VLS. Where would they fit it? I don't see in the pictures of the model
 

Thorvic

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Perhaps we should ewname the thread to reflect that PA2 as a programme has finally sunk but DCNS are still pushing an evolved none nuclear CdG design to potential export customers ?
 

Jemiba

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DCN-PA-2 / DCNS ? Pointing to both
 

Thorvic

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Yeap that's better, means the thread covers the original PA-2 requirement, covers the common CVF variant and the gradual switchback to evolutions of the original DCN Juliet design now aimed primarily at the export market.
I expect we will see another French Aircraft Carrier, but it will most likely be aimed as a Charles de Gaulle replacement, although that looks to be sometime off as yet and I can't much chance of export success this decade at least unless its as design consultants
 

Triton

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Published on Feb 15, 2014

DCNS Evolved Aircraft Carrier (DEAC):
Providing power projection, sea control and air defence and based on French Navy CVN Charles de Gaulle's combat proven design and aviation system, the DEAC is compatible with all CTOL aircrafts (including Airborne Early Warning aircraft) and features the latest technologies including cutting-edge Combat System (SETIS®), UAV integration, advanced conventional propulsion and state-of-the-art platform stabilisation system (SATRAP/COGITE). In addition to the design, DCNS offers customised transfer of technology, material packages, dedicated infrastructures development (i.e. naval base and construction/maintenance shipyard) as well as life support solutions.

Footage from DEFEXPO 2014 and Euronaval 2012
www.navyrecognition.com

http://youtu.be/DWYg-VUAi7I
 

H_K

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Some new CGIs of the "DCNS Evolved Aircraft Carrier" design (DEAC), courtesy of Meretmarine and DCNS.

A variant of DEAC will likely be pitched to India for its IAC-2 requirement, where its closest competitor will likely be BAE's larger CVF design. The design in these latest images seems unchanged from early 2014... though always nice to see some new angles.

Meretmarine gives a few updated specs:
http://meretmarine.com/fr/content/la-france-tres-interessee-par-le-projet-indien-de-nouveau-porte-avions

- Fuel capacity : 8,400t (an increase from the earlier numbers for PADSX : 7,200t, incl. 3,800t fuel oil + 3,400t JP5)
- Speed : 28 knots (up from 27kts earlier, though probably depends on the final propulsion choice)
- Range: 8,000nm @ 20kts (in line with PADSX's range of 8,000nm @ 15kts with 30% reserve)
- Munitions : 400t (down from 800t in PADSX... seems low)

NavyRecognition also speculates about options to fit DEAC with EMALS:
http://www.navyrecognition.com/index.php?option=com_content&task=view&id=2914
 

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H_K

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Here is one of the recent French carrier design studies.

Things of note:
  • ~300m length OA (estimate based on flight deck markings). Noticeably longer than CVF, probably 65,000t+ displacement
  • Long hull with slim “wave piercing bow”... indicates a greater focus on hydrodynamics than the “boxy” CVF design
  • 6 diesel main propulsion engines with WWII-style uptakes (!) along the flight deck (2 groups of 3)
  • Likely a gas turbine under the island, as 6x main diesels won’t provide enough power
  • This implies total power generation of 90-100MW (30+MW GTG + 6x ~10MW diesels). This is noticeably less than CVF’s 112MW... hence the focus on hydrodynamics
  • Rear island placement (a la CVN-78) indicates an emphasis on optimized sortie generation and maximizing clear deck space
  • The gas turbine under the island can’t be mechanical drive (located too far back) so likely hybrid-electric or all-electric propulsion

All-in-all looks like an elegant compromise, trying to mix the best of CVN-78 (uncluttered flight deck) and CVF (widely separated propulsion & uptakes). Looks nicer than the previous designs. Of course, no way of knowing if this is just a teaser or one of the preferred options...

Original source: https://www.meretmarine.com/fr/content/futur-porte-avions-les-industriels-finalisent-leur-copie
English translation: https://defenceforumindia.com/forum/threads/french-military-developments.4545/page-16

 
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Archibald

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Hell of a terrific ship, really. An honest-to-God, balanced design, as you noted.
 

Hobbes

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  • This implies total power generation of 90-100MW (30+MW GTG + 6x ~10MW diesels). This is noticeably less than CVF’s 112MW... hence the focus on hydrodynamics
  • Likely a gas turbine under the island, as 6x main diesels won’t provide enough power

Wärtsila supplies 17 MW diesels which would get you 100 MW without needing a gas turbine.
 
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