tag:blogger.com,1999:blog-19245896.post2843017949462852939..comments2024-03-29T14:20:26.555+11:00Comments on Submarine Matters & Australian Nuclear Weapons: Quantum Entanglement for Submarines made EasyPete2http://www.blogger.com/profile/06134037393078707072noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-19245896.post-3666239892915828452016-04-11T09:38:39.749+10:002016-04-11T09:38:39.749+10:00Hi MHalblaub [10/4/16 10:34 PM]
2 to 3 meters is ...Hi MHalblaub [10/4/16 10:34 PM]<br /><br />2 to 3 meters is still thick enough to stop buoys and floating antenna wires getting through<br /><br />probably still requiring subs to break through which would require the submarine stopping and may be a noisy operation and visible to aircraft, UAVs and satellites<br /><br />I don't know to what extent 2 or 3 meters may obscure GPS, UFH and other "submarine frequency" radio waves<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-72026665122323864192016-04-10T22:34:45.595+10:002016-04-10T22:34:45.595+10:00The ice cap is just about 2 or 3 m thick. That'...The ice cap is just about 2 or 3 m thick. That's all. <br /><br />Regards,<br />MHalblaubMHalblaubhttps://www.blogger.com/profile/14234020711635190127noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-37644294225927547772016-04-09T01:27:30.007+10:002016-04-09T01:27:30.007+10:00Hi KQN
An excellent observation. In line with the...Hi KQN<br /><br />An excellent observation. In line with the second paragraph of my article.<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-59066084329752348762016-04-08T22:38:10.358+10:002016-04-08T22:38:10.358+10:00Cables, buoys and masts do not work uder an ice ca...Cables, buoys and masts do not work uder an ice cap.<br />KQNAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-33285528916664764612016-04-08T20:05:22.440+10:002016-04-08T20:05:22.440+10:00Hi MHalblaub
http://www.gabler-maschinenbau.de/ma...Hi MHalblaub<br /><br />http://www.gabler-maschinenbau.de/maschinenbau/en/entwicklungen/zivilemeerestechnik/index.html talks about a few things. <br /><br />Do you mainly mean CALLISTO? http://www.gabler-maschinenbau.de/maschinenbau/en/entwicklungen/kommunikationssysteme/<br /><br />"taken under contract for Class 212A, 2nd batch submarines in April 2007. The CALLISTO communication system consists of a hoistable mast with an integrated buoy, and can also be used in surfaced conditions or at periscope depth as a conventional communication mast.<br /> <br />When the submarine is deep submerged, the buoy rises to the surface as the cable pays out, after the retaining elements have been released. As soon as the antenna is above the water surface, the system establishes communication abilities in the UHF SATCOM, UHF LOS, VHF and HF reception frequencies as well as GPS L1/L2. Automatic adjustment of the cable length allows the submarine to maintain speed and depth as desired."<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-29461557290682740312016-04-08T18:57:14.389+10:002016-04-08T18:57:14.389+10:00Here a exiting solution already implemented on U35...Here a exiting solution already implemented on U35 and U36:<br />http://www.gabler-maschinenbau.de/maschinenbau/en/entwicklungen/zivilemeerestechnik/index.html<br />It is the strange looking piece of hardware at the end of the sail.<br /><br />Regards,<br />MHalblaubMHalblaubhttps://www.blogger.com/profile/14234020711635190127noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-45575859236845758232016-04-08T15:54:17.839+10:002016-04-08T15:54:17.839+10:00Hi Vigilis
Yes I think the US government may have...Hi Vigilis<br /><br />Yes I think the US government may have ulterior motives with this unnecessarily publicized/declassified patent. <br /><br />Perhaps to deceive strategic and economic competitors. And also its a good news, good PR story, for the US Navy, wider DoD and US research generally. <br /><br />US tax dollars going for a good high tech science cause and all.<br /><br />You've made some really good points about the actually manned "unmanned" and highly vulnerable ACTUV at http://aquilinefocus.blogspot.com.au/2016/04/submarine-questions-of-week-5-april-2016.html .<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-44052999014889660352016-04-08T15:31:30.213+10:002016-04-08T15:31:30.213+10:00Picking up GPS signals via a trailing wire wouldnt...Picking up GPS signals via a trailing wire wouldnt be recommended.<br />"The two most popular types of antennas used in GPS receivers are "patch" and "quadrifilar helix" or "quad helix" for short."<br />Those used in the maritime environment are normally an 'upside down plate' which contains the aerial array or patch.<br />The details of quad helixs are here<br />http://orbanmicrowave.com/wp-content/uploads/2015/03/TheBasicsofQuadrifilarHelixAntennas.pdf<br />It would seem that a floating cable that consists of an 'air core helix' of around 18mm diameter could work, but passing that signal from the surface to the inside of the submarine maybe 10s metres away could be difficult.Ztev Konradhttps://www.blogger.com/profile/06553128132098513643noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-76647131666554935482016-04-08T12:21:41.683+10:002016-04-08T12:21:41.683+10:00Hi Ztev
Positioning signals could be from several...Hi Ztev<br /><br />Positioning signals could be from several ground stations simultaeously to achieve triangulation. An occasionally reeled out long line antenna may "float" in that 30m zone. <br /><br />Long line antennas floating, for short time. may receive useful GPS sat signals.<br /><br />Yes, to maintain discretion subs don't transmit. Perhaps receive:<br />- positioning signals<br />- important encoded news/orders eg "we are at war" "watch out for the SSN, ASW ship, SSK, SSBN in <br /> XXXX area"<br />- in extremis Launch Codes.<br /><br />Probably only in emergencies would subs transmit. Here's an emergency which may have lead to rapid transmissions because probably one or both SSBNs could not continue their on station missions https://en.wikipedia.org/wiki/HMS_Vanguard_and_Le_Triomphant_submarine_collision<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-89826660452064628402016-04-08T11:59:15.351+10:002016-04-08T11:59:15.351+10:00Hi Pete
Why did Coca Cola NOT patent its trademar...Hi Pete<br /><br />Why did Coca Cola NOT patent its trademark's recipe? --- Because said trade secret would have become publicly available to competitors. <br /><br />Who actually believes any Top Secret advantage of the U.S. Silent Service would not only rely on a patent, but be accompanied by press coverage? Not I, unless the patent is another invitation for China, Iran, Russia, etc. to throw vast sums of military spending down fruitless black holes.<br /><br />The patent in question is certainly tantalizing, but criteria for patentability better quite the red herring. <br /><br />Finally, let me ask when was the last time any military patent ever blocked a rival military from theft? <br /><br />With all of that in mind, MHalblaub's reservation about entangled photons makes even more sense.<br /><br />Regards,<br />VigilisVigilishttps://www.blogger.com/profile/05051789616490005367noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-63970281521729334152016-04-08T10:35:51.620+10:002016-04-08T10:35:51.620+10:00Better living through theoretical physics huh!
Ha...Better living through theoretical physics huh!<br /><br />Having read the linked article it does make a certain amount of sense. No-one else can detect your photon because they dont have the matching entangled one as a reference. But building the kit to do it reliably is going to be a non trivial challenge. Can you imagine the sheer computing power thats going to be needed to keep track of whats happening in such a device??<br /><br />" According to my knowledge the trick with entangled photons works differently. The emitted photon does not even have to be received again by the submarine. "<br /><br />Yeah, thats my understanding of entanglement as well.imaccanoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-8027599452807634592016-04-08T09:31:37.547+10:002016-04-08T09:31:37.547+10:00What would those positioning signals received unde...What would those positioning signals received underwater be ? VLF can go say 30m but its one way as the broadcast antenna is a few sq km in size and can only be at a low rate.<br />en.wikipedia.org/wiki/Communication_with_submarines#Extremely_low_frequencyZtev Konradhttps://www.blogger.com/profile/06553128132098513643noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-87906173874147881432016-04-07T23:40:55.387+10:002016-04-07T23:40:55.387+10:00Dear Pete,
According to my knowledge the trick wit...Dear Pete,<br />According to my knowledge the trick with entangled photons works differently. The emitted photon does not even have to be received again by the submarine. The change of a quantum mechanical state will be instantly transmitted to the other photon. - yep even faster than light. <br /><br />Therefor an entangled search light could be much darker ...<br /><br />The problem remains that it is still light an could be absorbed very quickly by dirty water.<br /><br />Regards,<br />MHalblaubMHalblaubhttps://www.blogger.com/profile/14234020711635190127noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-78388254587018910032016-04-07T23:28:06.359+10:002016-04-07T23:28:06.359+10:00Submarine guidance has long been inertial since nu...Submarine guidance has long been inertial since nuke boats began traveling submerged for extended periods. The modern mechanism I believe is the laser ring gyro, but submerged navigation always gets increasingly inaccurate the longer the boat is continuously submerged. Surfacing allows for a position update to the system to correct for drift, be it using LORAN, TRANSIT, or now NAVSTAR. This just requires a mast to breach; there might be tethered buoys that can accomplish this now.Joshnoreply@blogger.com