Kal
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Everything posted by Kal
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Ajax with 2 crew and 4 dismounts would never have been seriously considered for the role anyway. Australia wants family edition IFV. It may be great vehicle, but it is not what Australia is looking for. And does it have a rear ramp?
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That roof looks lite. Is that roof hole large enough for an Australian 81mm mortar teams use?
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Because in my country the link to that engine has the word NEW appended in the top corner, unlike most of liebherr's other engine links. But there are plenty of times when whats new for Australia is old for the rest of the world.... I dont know if D976 is a new 18l engine, or just a new edition of an old 18l engine. Just that liebherr is labeling it as 'new'. I do appreciate your friday posts, I'll need to update my lynx vs as21 spreadsheet with the 6cyl engine..
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The 2 are not mutually incompatible, added boost to achieve required power rating combined with new emissions verifications is probably sufficient to consider it a new engine, even if it is 95%+ common by parts
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FWIW https://www.liebherr.com/en/aus/products/components/combustion-engines/diesel-engines/product-portfolio-diesel-engines/details/d976a7.html New D976 18 litre, 6cyl 1,850 kg
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Agree about using existing technology for the evaluation, but pointing out for future growth, this tech's progression is open ended not closed ended. Also, has reservations that a cold country track maker will choose the right compound for a hot country
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https://www.jlv.com.au/cable-belt-conveyors.html The soucy patch reminds me of cable belt conveyors. Not the cheapest solution but they are the long distance champioms of conveyors. 31km between drives is possobly not even physically possible with a segmented steel solution with shear connections. Point is, rubber tracks are technology with lots of development potential. With an end point generally superior to metal tracks with rubber pads.
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Do they state it is degraded in vibration or speed. I'm not saying it isn't, but Im not assuming it is either, simply because induatrial belting splice kits can be rated for the same speed the application is used for even if it less than the theoretical maximum.
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In field emergency kit should be a pragmatic option, similar to how old school push bikes have puncture repair kits. With conveyor belt damage, a mine wont stop production until a whole new belt arrives, they patch up the old one and keep going. (Unless its a slice along the belt, not accross the belt, but how to transfer that style of damage to an ifv? )
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https://www.truppendienst.com/themen/beitraege/artikel/power-on-rubber-tracks/?L=0&cHash=04cf0983460b323b3979a8d0fe241097 Norwegian perspective on rubber tracks with comparisons for a 42 tonne weight class leopard 1 tank...
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Off topic, but Australia already has suitable operational factory for manufacturing offroad equipment in the 30 to 100 tonne, the elphinestone facility in Tasmania. But whats left for that factory? I don't know. It was the site where the Sentinel II wouldve ben fabricated.
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So, one of those has double the penetration values of the other?
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True, But Hanwha has to stuff it up to lose that contract now. Its always possible as they are not local. I doubt the K9 contract details will be finalised before a covid19 vacinne is available in Victoria.
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K9 and K10 are go. So both Rheinmetall and Hanwha will have good facilities in Australia for production of IFV. Its a 2 horse race. Eitherway, hopefully a better outcome for final procurement of the IFV.
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General artillery, SPGs, MLRS and long range ATGMs thread.
Kal replied to LoooSeR's topic in Mechanized Warfare
Hanwha Defense Australia (HDA) has been selected as the preferred supplier to the Australian Army (AA) of 30 K9 155 mm self-propelled howitzers (SPHs) and 15 K10 armoured ammunition resupply vehicles (AARVs), Defence Minister Linda Reynolds announced on 3 September. (So its intent to negotiate a sole source contract) -
General artillery, SPGs, MLRS and long range ATGMs thread.
Kal replied to LoooSeR's topic in Mechanized Warfare
Media is reporting australia is oking the K9. https://t.co/UmhfYBZ9Kw?amp=1 -
https://t.co/UmhfYBZ9Kw?amp=1 Media reporting australia is getting the K9. (Oops, wrong thread)
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So something equivalent to 3UBR8? Was there ever a stanag 4569 that had a level 6 but not explicitly APFSDS?
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Daewoo's K21 is 25 tonne class vehicle with Al, fibreglass and Alumina. AS21 is 42 tonne class vehicle with steel, although Hanwha is major plastics petrochem company and used to make lots of silicon including some silicon carbide.
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This type of announcement from bisalloy https://www.bisalloy.com.au/bisalloy-armour-steel-passes-german-government-testing/ makes me suspect that higher end german products will have lower australian steel content because they were designed to exclusivly use German grades of steel. So less australian steel and less australian fabrication content. But it still is to be fully welded in Australia. Hanwha AS21 is opposite, its inspiration is from an aluminum/fibreglass design so the steel equivalent is fully designed based upon Australian steel as the reference material. Designed by koreans for Australian steel (so to speak)
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Its not just the vehicles, but the crash test dummies inside. No point having an immaculate vehicle if the dummies all have broken necks etc. So yeah, that part is still a contest of who is better.
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thanks for the added detail, I had used the old leopard 1 tracks as a proxy, 4 tonnes, since that tank was similar weight, and soucy's rough approximation of being 1/2 weight.http://www.tankarchives.ca/2017/05/leopard-tracks.html for transmission KF41 was renk 256, @ 1.7 tonne vs AS21 X-1100-3B at 2.0 tonne but for engine, for 850kW Liebherr D9612 @ 2.35 tonne vs MTU 881 at 1.4 tonne (perhaps D9512 @ 750kW would be better https://www.liebherr.com/en/aus/products/components/combustion-engines/diesel-engines/product-portfolio-diesel-engines/details/d9512a7.html) can Hanwha stuff it up, sure perhaps if that is a weld seam right along the centre of the hull floor. but at this point is time, it appears that Hanwha has taken the opportunity to match the Lynx nearly exactly on combined hull+turret weight. which is a very different scenario than the land400 phase 2 finalists. for both vehicle blast tests, the vehicles will use the local hawkei seats.
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very rough estimates AS21 combat weight 42 tonnes, 2 tonnes for rubber tracks, 3.5 tonnes for engine/tran, gives 36.5 tonne for everything else KF Lynx41, combat weight 44tonnes, 4 tonnes (guess) for steel track, 4.0 tonnes for engine/tran, gives 36.0 tonne for everything else different, yet similar
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10kg mine blast is probably Hanwha's AS21 strongest point compared to LYNX. (Due to hanwha history of originally being an explosive company that expanded into petrochem, so if they know anything, it should be blasting and blasting mats)
