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Science & Technology
Ford Carriers Sport New Radars To Deflect Threats
2014-06-02
U.S. Navy says it can thwart Chinese ASBM threat. The Chinese missile is based on the DF-21 (CSS-5) medium-range ballistic missile (MRBM) and gives China the capability to attack large ships--including aircraft carriers--in the western Pacific Ocean, with a range exceeding 1,500 km, or 810 nm.

"The DF-21D is a theater-range ballistic missile equipped with a maneuverable reentry vehicle (Marv) designed to hit moving ships at sea," the Congressional Research Service (CRS) notes in a recent report.
The article talks about the Dual Band (S and X-band) Radar (DBR) initially developed for the DDG-1000 Zumwalt destroyer. It is interesting that the current ground based ABM system uses a floating X-Band radar.
Rear Adm. Michael Manazir, the director of air warfare] acknowledges the Navy is reviewing whether it will continue using DBR for carriers after the Ford or use technological advances to develop a radar more appropriate for the ships.

The Ford's electric power distribution grid kicks up about 13,800 volts, compared to about 4,160 for Nimitz-class carriers. Of course the ship needs more juice to power its DBR, Electromagnetic Aircraft Launch System (Emals) and other systems, but the design allows for even greater capacity.

"If you go to a more electric-centric ship, you have to have big electrical potential," Manazir says. "The Ford was designed with a 60 percent increase in capacity."

For Nimitz-class ships, he says, any new technological improvements that require more electricity would mean power-supply redesigns to accommodate the upgrades.

"With Ford," he says, "it's already designed into the ship."
Rail guns and lasers need electricity. Hmmm.
Posted by:Squinty

#11  I had an Impala like that once. It got stolen by the producers of "Supernatural."
Posted by: Thing From Snowy Mountain   2014-06-02 23:49  

#10  I have always thought of Ford Motor Company's LTD's of the early 1970's as aircraft carriers in their own right.
Posted by: Anguper Hupomosing9418    2014-06-02 14:38  

#9  (volts x amps) = watts
Posted by: Bobby   2014-06-02 13:54  

#8  You're talking about Proton Torpedoes aren't you? :(
Posted by: Shipman   2014-06-02 13:02  

#7  perhaps for fear of saying too much

Yup
Posted by: Mullah Richard   2014-06-02 10:42  

#6  Mullah Richard,
The article didn't state a lot, perhaps for fear of saying too much. With Aviation Week & Space Technology there is a lot of reading between the lines. The Ford (CVN-78) has 150% more power generation capability than the Enterprise (CVN-65) that it will replace. The SI unit for electrical power is the watt.

As you point out, electricity transmission to your house travels the distance in high voltage lines. A local transformer steps the voltage down for your household use.
Posted by: Squinty   2014-06-02 10:11  

#5  13,800 volts will travel through the ship's infrastructure more efficiently than the 4,160-volt systems used previously. In a large structure (Carrier in this case), you can experience voltage loss over long distances, which degrades the actual power delivery potential. The 'Voltage' increase mitigates that (see Ohm's Law and Voltage Drop).

What this article doesn't state is whether or not the new power plant produces more actual 'Power' (volts x amperes) that would be needed for the added systems.
Posted by: Mullah Richard   2014-06-02 09:43  

#4  Ford F-150 Carriers?

Gerald, not Henry. :-)
Posted by: Squinty   2014-06-02 09:32  

#3  Ford F-150 Carriers?
Posted by: Thing From Snowy Mountain   2014-06-02 09:27  

#2  OK, essentially they put Aegis phased array microwave on the Ford class. Makes sense; even the Severe Storms Lab in Oklahoma has one these days. (It's used in tornado chasing, and is a truly strange thing to see pass you on the highway.) If you crank up the wattage at the focal point, they've been known to 'kill' aircraft by frying the avionics (fly by wire is not necessarily your friend). Whether it would stop a MARV is another question, and how big a 'miss' would be required, being as they're supposed to be nukes.
Posted by: ed in texas   2014-06-02 07:28  

#1  Rail guns especially
Posted by: OldSpook   2014-06-02 03:52  

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