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 Attenuation is too minor
Author: Martin Su 
Date:   06-13-12 17:45

The official explanation is the "too costly" excuse that we also saw with the cancellation of the Boeing Airborne Laser. The United States wants to save face and claim the new technology is too expensive. However, the whole point of a superweapon is to gain a major advantage against a potential adversary.

The real problem is that these cutting-edge technologies don't work against a near-peer like China. You can minimize the radar signature through shaping for a DDG-1000 destroyer, however it is still extremely vulnerable to detection through other types of sensors. It is virtually impossible to shield a warship from ALL forms of detection.

I didn't want to bother to delve into the issue of which radar band the DDG-1000 is supposedly hardest to see in. I'm guessing it's radar signature is minimized in the X-band and still vulnerable in S-band and L-band.

The bottom line is the DDG-1000 was canceled, because the Navy realized the ship is a sitting duck and it's a waste of money to pour resources into a loser.

----------

Regarding your citation for minimizing the sounds from a propeller, it is pointless against modern sensors and digital signal processing algorithms on modern computers. There are expensive design techniques that can somewhat attenuate the propeller sound, but it accomplishes too little.

It's like saying you want to muffle the blast of a howitzer. Sure, you can lessen it a bit at the margin. However, you can't really shield it. The same problem exists in trying to shield the propeller sound of a 15,000-ton ship that is powered by 78-MegaWatts. It is impossible.

Your citation regarding wake reduction is irrelevant. I never discussed wake-homing torpedoes.

Martin Su
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