pour vous ,en primeur car j'ai pas vu de post la dessus ,les photos (made in NAVY) du modele a l'echele du DDX pour les essais de moteurs et l'evaluation du concept retenu ...
et le dessous :
systeme de propulsion bien differents des helices habituellement rencontrés sur des navires NOn ???
tout cela pour en arriver là :
details de cette "future" bestiole sur mer : en anglais car j'ai aps trouvé en Francais aussi detaillé.. :oops:
The DD(X) destroyer will have several advanced technology features:
Tumblehome Hull Form: This low-to-the water hull slopes inward from above the waterline reducing the hull’s exposure to waves. As a result, there is less ship-rocking motion to help reduce radar identification by other ships.
All-Electric Drive: Four prime movers (engines) will provide power to all the ship’s systems. Compared to present power configurations, the all-electric drive will eliminate driveshaft/reduction gears, thus reducing the acoustic signature by which other ships can identify a vessel. There will also be 10 times more available power for all the ship’s systems compared to the power capabilities of conventional ships. This additional power will also be necessary for future electronic-based weaponry.
Peripheral Vertical Launch System (PVLS): The PVLS will be made up of clusters of missile magazines (four missiles/launchers in each cluster) located between layers of steel alongside the periphery of the hull.
The advantage of the PVLS versus locating the VLS missile magazines in the center of the ship, as has traditionally been done, is very simple: In the event a magazine is struck by an incoming missile, there is a reduced risk that other magazines will blow up and sink or severely damage the ship.
The PVLS will be able to launch several types of missiles:
Tomahawk land attack missiles
Standard missiles for local air defense
Evolved Sea Sparrow missiles for airborne and seaborne attacks
Antisubmarine rockets
Conventional Weaponry: DD(X) will be armed with an impressive array of traditional weaponry including:
Two 40mm close-in gun systems for air and surface attacks
Two 155mm guns (advanced gun systems) with:
100 nautical mile range
12 rounds/minute firing capability
Fully automated handling and storage system
GPS-guided Long Range Land Attack Projectiles
Future Weaponry: DD(X) will be a platform for varied-intensity weapons capable of damaging an enemy ship versus destroying it, depending on
the power output of the weapon.
Future weapons could include:
Free electron lasers utilizing photons traveling at light speed, providing precise targeting
High-powered microwaves utilizing radio frequency energy
Electromagnetic rail guns utilizing electricity and magnetic fields
Radar Suite: AN/SPY-3 multifunction radar will combine the functions formerly provided by five separate radar systems, reducing equipment and manpower costs. The radar will detect the most advanced, low-observable anti-ship cruise missiles, especially in adverse environmental conditions. To provide as small a signature as possible to other ships, phased array radar antennas will be incorporated into the DD(X)’s composite superstructure. (Composite material cannot be identified by radar.)
Crew: Many of the functions performed by crews on conventional destroyers will be automated on the DD(X). That means a reduction in crew size – 330 fewer sailors than the Spruance class destroyers and 200 fewer sailors than the Oliver Hazard Perry class frigates. The crew will also focus on fighting versus ship maintenance.