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Wanshan

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Viewing 15 posts - 46 through 60 (of 3,544 total)
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  • in reply to: Rise of the 6th Generation Fighter … #2304945
    Wanshan
    Participant

    I think only a handful countries can afford a few starships with DE,
    the rest will keep flying old fighters if operational cost allows it,
    and replace with UCAV & GBAD.
    Suffice to say i’m not thrilled.
    http://www.roperld.com/science/minerals/OilPricePrediction.jpg

    What’s your investment recommendation? 😀

    in reply to: PLAN News Thread #4 #2004750
    Wanshan
    Participant

    Bottom line Hallo…if you act like a bully then dont go screaming victimisation if someone accuses you of being a bully!.

    yup, agree

    in reply to: Japanese Aircraft Carrier? #2004811
    Wanshan
    Participant

    Could Japan support such a Large Warship?

    The 19500t class destroyer (DDH) is a new helicopter carrier class being constructed for the Japan Maritime Self-Defense Force (JMSDF). The ships of this class will be the largest surface combatants of the Japanese navy, taking over the mantle currently held by the Hyūga class helicopter destroyers.
    Displacement: 19,500 tonnes empty, 27,000 tons full load

    http://en.wikipedia.org/wiki/19000t_class_destroyer

    If they can manage that, which is half the CVF, why not the whole thing?
    Also considering that this is about equivalent of the displacement of Yamato class BB.

    in reply to: Navies news from around the world -V #2004910
    Wanshan
    Participant

    MDO is probably not relevant. F-76 is closer to MGO. Marine diesel engines more often burn HFO. HFO has to be heated to flow in temperate climates, never mind cold ones.

    Interesting that LUKOIL appears to be able to supply F-76, but do they produce it routinely? Regardless, logistics common sense says that you make the Mistrals burn the standard fuel, not supply them with something special that isn’t used by or required for any of your other units. What are the standard Russian Navy fuels?

    Mazut?

    in reply to: Navies news from around the world -V #2004996
    Wanshan
    Participant

    Wanshan,

    We are at risk of going around in circles on this. Based on the fuel spec you linked to, those engines are capable of burning the thickest, nastiest residual fuel oils, as you would expect from a marine diesel engine. Western navies use high quality distillate fuels because those are compatible with Western gas turbines. I’m not pretending to know what the standard Russian naval fuel is, but I wouldn’t expect it to be identical to F-76. Russia may use different grades in different engine types: distillate in GTs, residuals in diesels and steam turbine plants, as at least some Western navies did in the past.

    Are Mistrals, off the shelf, as specified for France, compatible with standard Russian naval fuels: I’ve no idea, but the Russian deputy PM says not. Is that plausible: yes. Can the engines fitted to Mistrals be made to be compatible with standard Russian navy fuels: yes.

    For example, if Russian practice is to use residual fuels, these require heating in the tanks to get the oil warm enough to flow. Mistrals are almost certainly not fitted with heated tanks as standard as it isn’t necessary when you are burning F-76.

    Am I off on a silly tack here and you actually know what the standard Russian naval fuels are?

    From what I read, Russian fuel quality is relatively poor and inconsistent. Western diesel engines may not tolerate this. But I would think that is a different issue from the effects of COLD (e.g. gelling, waxing). Apparently, fuel on a ship will not get colder than the water sorrounding the ship (regardless of air temp) and the water around a ship will rarely be below 0 deg C.

    MDO (Marine diesel oil) – A blend of heavy gasoil that may contain very small amounts of black refinery feed stocks, but has a low viscosity up to 12 cSt so it need not be heated for use in internal combustion engines. Marine diesel oil contains some heavy fuel oil, unlike regular diesels. Also, marine fuel oils sometimes contain waste products. Mazut is a residual fuel oil often derived from Russian petroleum sources and is either blended with lighter petroleum fractions or burned directly in specialized boilers and furnaces.

    http://en.wikipedia.org/wiki/Fuel_oil

    Russia is cementing its status as Europe’s foremost diesel supplier as President Vladimir Putin seeks to shore up economic growth with record investment in the refining industry.Russia is improving fuels quality to safeguard its Western export market and take advantage of crude output that’s risen to a post-Soviet record.

    http://www.bloomberg.com/news/2012-08-21/russia-invests-in-diesel-as-putin-s-oil-boom-peaks.html

    The fuel oil originating from Eastern Europe in particular, Russia and Ukraine, is typically high sulphur bunker quality. Bunker fuel is technically any type of fuel oil used aboard ships.

    http://www.enxsa.com/fueloil.html

    “In addition, we are helped by the Company’s brand, which is now well known throughout the world,” Shirshov notes. “The quality of the LUKOIL fuel is confirmed by multiple testing by various foreign companies and is not doubted by anyone. And our clients know that we work with a single fuel supplier – LUKOIL’s own plants.”

    This was the deciding factor behind the company’s refueling the Dutch frigate HMS Van Amstel during the St. Petersburg International Maritime Defense Show 2011 this summer. LUKOIL-BUNKER had previously, too, served international regattas and naval vessels entering the Neva and the Gulf of Finland. Here, however, the task was a more difficult one: it was not simply a matter of fuel quality; the fuel had to meet the specifications of a NATO naval vessel – Naval Distillate Fuel F-76. The characteristics (specifications) of LUKOIL fuel comply fully with the standards required by other countries. This first and most important formal barrier was overcome comparatively easily, but it was followed by other “bureaucratic” though quite natural barriers under the circumstances: refueling of foreign warships involves an additional series of legal, customs and immigration formalities. As a result, such operations consume a lot of time and labor.

    Even so, Shirshov notes, the company is prepared to refuel foreign naval vessels in the future, too, as they periodically visit Russian ports to take part in various international events.

    http://www.oilru.com/or/49/1040/

    in reply to: Unidentified aircraft #2318382
    Wanshan
    Participant

    Wow resurrection of a 9 year old thread

    It’s a gift …. :diablo:

    Incidentally, having looked as some Mildenhall pics and footage, could such a triangular shape have been a Vulcan bomber? Or an SR-71 (from certain angles it may look like a triangle)

    in reply to: Unidentified aircraft #2318384
    Wanshan
    Participant

    The original formation pic with the F-111s was (I am sure) taken at a Mildenhall air show some years ago – one of the local 135s always opens the show with a flypast and I think this was an EC-135C partnering the two F-111Fs.

    Them apples?

    http://i78.photobucket.com/albums/j103/darrencurrie/Air%20Fete%201987/KC-135F-111s.jpg
    http://fightercontrol.co.uk/forum/viewtopic.php?f=18&t=48053

    http://resources2.news.com.au/images/2010/04/26/1225858/288230-aurora.jpg

    in reply to: Unidentified aircraft #2318389
    Wanshan
    Participant

    At least a new AURORA thread!! (… for those not willing to believe that nothing exists up in the air that is not officially approved by the authorities)

    to ForkTailedDevil:
    One of the more popular doctored “photos” of Aurora, in an attempt to accompany Chris Gib-son’s report. This was once referred to as a sighting over Australia
    This “photomontage” was created by Bill Rose as a depiction of what a former Royal Observer Corps team member spotted from a North Sea oil drilling platform in 1989. That sighting is con-sidered the most reputable sighting report of its kind, as well as the only truly credible piece of evidence for the existence of the Aurora.
    This is not a photograph, although it is easily mistaken for one. It is simply a visual rendering of what might have been seen over the North Sea. The image depicts the Aurora at the bottom of the image, escorted by two U.S. F-111s at upper left, and taking on fuel from a U.S. KC-135 tanker.
    On at least one occasion, this image was mistaken for a real photo by a member of the “super-market press.” The image was sent to the British magazine named “UFO Encounters,” which paraded it on its February 1996 cover with the byline, “UFO Escort Picture: We Unveil New Evi-dence Of This US Cover-Up.” On another occasion, an almost identical image was publicized as a sighting over Australia.

    to flex297
    I’ve never seen the russian pic – so could you post it, please?

    To fantasma_337:
    I suppose you mean the attached pic on which you can see a black triangle aircraft (A-17?, F-121?, Astra? Sentinel? ….), which is most probably CG
    For further information read http://www.aemann.pwp.blueyonder.co.uk/aircraft/black/aurora/aurora6.htm

    http://d38zt8ehae1tnt.cloudfront.net/AURORA_SIGHTING__NORTH_SEA_1989__11914.jpg?v=1360836183
    http://www.disclose.tv/action/viewvideo/11914/AURORA_SIGHTING__NORTH_SEA_1989/

    in reply to: Unidentified aircraft #2318392
    Wanshan
    Participant

    Besides, the size of the F-111 doesn’t seem to match the one of the KC-135.

    The KC-135 is above and abreast or behind the F111s, like in this pic:
    http://farm8.staticflickr.com/7276/7468096066_4655560d4c.jpg

    in reply to: Navies news from around the world -V #2005032
    Wanshan
    Participant

    The Wartsila diesels in merchant ships generally run on different fuels from those in warships. Why not those in French amphibs and Russian auxiliaries?

    The Mistrals for France would be specified for F-76 compatibility. The icebreakers for whatever the USSR wanted at the time, quite possibly a heavier or otherwise different grade from F-76. Whatever, it is likely to be fuel with different characteristics and the Mistrals for Russia will have to be modified to be fully compatible with standard Russian naval fuel.

    I believe the engines I mentioned both belong to the Wärtsilä 32 series.
    http://www.wartsila.com/en/engines/medium-speed-engines/wartsila32

    W32 : Medium-speed engines. Proven and reliable heavy fuel technology available for a wide range of application types
    http://www.wartsila.com/en/engines

    SEE: http://www.brownsequipment.com/files/item_files/files/12338.pdf
    (Contains Fuel specification)

    in reply to: Russian Navy Thread 2. #2005076
    Wanshan
    Participant

    I wonder what kind of ship sharing partnership is Ukraine looking for? They should make her as a rental cruiser? Then they could make ads like Rent a cruiser for two months and you get an extra month for free. That would be something. But seriously how would “joint use of a cruiser” work between multiple countries? I wonder what those other countries are?

    There are some known instances of ships and boats being leased …

    e.g. ex-Soviet Charlie class nuclear powered guided missile submarine on a 3-year lease to the Indian Navy, which commissioned the vessel as the INS Chakra. That submarine was manned by an Indian crew. Upon expiration of the lease term in 1991, the submarine was returned to Russia and joined the Pacific Fleet of the Russian Navy.

    e.g. Brooke and Garcia class ships by US to Pakistan, on a five-year lease in 1988. A depot for repairs, USS Hector followed the lease of these ships in April 1989. The lease of the first Brooke class frigate expired in March 1993, the remaining in early 1994. Ships were returned to US custody.

    The problem is, these are all finished, active ships, not an unfinished ship that has been laid up for 15 years.

    By comparison, India paid US$2 billion for the completion of two Akula-II class submarines which were 40–60% completed. Three hundred Indian Navy personnel were trained in Russia for the operation of these submarines. India has finalised a deal with Russia, in which at the end of the lease of these submarines, it has an option to buy them. The first submarine is named INS Chakra and was handed over to India on 23 January 2012

    So, even that problem could be overcome….

    There are no Black Sea navies besides Russia that could support it. The only other navies I could think of are Chinese and Indian, both of which very unlikely candidates.

    in reply to: Navies news from around the world -V #2005080
    Wanshan
    Participant

    Something other than F-76. ‘Diesel’ in marine engineering terms can cover a real multitude of sins, from HFO to MGO.

    The answer is to make the LHDs engines compatible with whatever the standard Russian Navy fuel is.

    From: http://forum.keypublishing.com/showpost.php?p=1993669&postcount=18

    Mistrals have 3 Wärtsilä diesels-alternators 16 V32 (6.2 MW) + 1 Wärtsilä Vaasa auxiliary diesel-alternator 18V200 (3 MW), powering 2 Rolls-Royce Mermaid azimuth thrusters (2 × 7 MW), 2 5-bladed propellers

    Magadan is a Russian icebreaker completed in 1982. Like several other icebreakers on the list (e.g. Kapitan Khlebnikov, Kapitan Dranitsyn, Krasin, Admiral Makarov), she was built by Wärtsilä Helsinki New Shipyard, in Finland. She is powered by 4 × Wärtsilä 8R32 (4 × 2,390 kW) driving two shafts, 4-bladed controllable pitch propellers.

    Why would the Wartsila diesels in Mistral run on something different than the Wartsila diesels in the icebreakers?

    in reply to: Turkish Carrier/LHD? #2005248
    Wanshan
    Participant

    Certainly plausible enough — borrow an existing design and switch out some planned F-35As for Bs. As for how useful it will be — how useful is Brazil’s carrier? Carriers are about prestige and admission to The Club of Countries Wot Matter as much as anything else.

    Europe is going to rue spurning Turkey in the decades ahead. Could’ve been a first-rate military and economic contributor to the EU, and a growing one unlike UK/FR/GR. Oh well.

    It’s a good idea to be F35B compatible, even if not actually getting any (from the point of view of capability for crossdecking US, Spanish and Italian aviation assets)

    in reply to: Russian Navy Thread 2. #2005251
    Wanshan
    Participant
    in reply to: Why are DDG1000 classed as Destroyers #2005539
    Wanshan
    Participant

    Political reasons.

    Remnants of WW2.

    CHeck out preceeding Shirane and Hiruna classes, there is some credence to the ASW lineage (alrthough this is an entirely different ship)

Viewing 15 posts - 46 through 60 (of 3,544 total)