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Sturgeon's House

N-L-M

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  1. Tank You
    N-L-M reacted to BaronTibere in Main Ground Combat System (MGCS) and Euro Main Battle Tank (EMBT)   
    https://ir.rheinmetall.com/download/companies/rheinmetall/Presentations/191120_CMD_2019_Unterluess_CEO_online.pdf
  2. Tank You
    N-L-M reacted to Wiedzmin in General AFV Thread   
    there is a lot of other pics, strange tank imho...
  3. Tank You
    N-L-M reacted to 2805662 in Modern Tank Destroyers / Gun Carriers   
    Got to sneak a peak at this today:
     

     



     
     
  4. Metal
    N-L-M reacted to LoooSeR in The Soviet Tank Thread: Transversely Mounted 1000hp Engines   
    In other news...

     

  5. Tank You
    N-L-M got a reaction from Beer in General AFV Thread   
    Thats the tech demonstrator for friction stir welding, IIRC.
  6. Tank You
    N-L-M got a reaction from 2805662 in General AFV Thread   
    Thats the tech demonstrator for friction stir welding, IIRC.
  7. Tank You
    N-L-M got a reaction from Beer in Israeli AFVs   
    Merkava 1 has an external mortar.
    I believe that particular mortar fitted in the Namer turret is the same one as is in use in the Merk 4, which is slightly different from the one used in the Merk 2 and 3, pictured separately in LoooSeR's post.
  8. Funny
    N-L-M reacted to LoooSeR in The fragile and transitory nature of humour   
    Heh, it appears that YaK-130 UBS have an unknown button near one of screens that was unmarked and not marked on documents for a plane, and if you press it a message appears on the screen saying "Kill all humans! Long live robots!"
       Video in the link (proof) https://diana-mihailova.livejournal.com/4077485.html

       Here is offical document asking producer to fix that.
  9. Funny
    N-L-M got a reaction from shaun22sd in United States Military Vehicle General: Guns, G*vins, and Gas Turbines   
    Thanks for posting, I would appreciate it if you could kindly edit out the various video game references.
    Regarding the above, the numbers for the M60 and vanilla M1 are both high, as is the number for the T-62. The rest of the Soviet numbers appear to be similarly made up, so expecting the late model (at the time) Abrams numbers to be anywhere near accurate is... hopelessly optimistic.
  10. Tank You
    N-L-M got a reaction from roguetechie in United States Military Vehicle General: Guns, G*vins, and Gas Turbines   
    Towed artillery would get counterbatteried 10 ways to hell so fast it'd make your head spin. Fire systems incapable of dodging or surviving counterbattery fire will have fuckall survivability in a big boy war. Doubly so for towed guns with substantially less range than enemy artillery, such as say the M777 compared to pretty much anything modern on the opposite side.
    Fire-finding radars are everywhere since the 1990s, and the gun's survivability has to be evaluated under the understanding that the enemy is going to shoot back. 
    Given that, the ability to shoot and scoot before enemy fire arrives is a critical survivability measure.
  11. Tank You
    N-L-M got a reaction from Serge in United States Military Vehicle General: Guns, G*vins, and Gas Turbines   
    Towed artillery would get counterbatteried 10 ways to hell so fast it'd make your head spin. Fire systems incapable of dodging or surviving counterbattery fire will have fuckall survivability in a big boy war. Doubly so for towed guns with substantially less range than enemy artillery, such as say the M777 compared to pretty much anything modern on the opposite side.
    Fire-finding radars are everywhere since the 1990s, and the gun's survivability has to be evaluated under the understanding that the enemy is going to shoot back. 
    Given that, the ability to shoot and scoot before enemy fire arrives is a critical survivability measure.
  12. Metal
    N-L-M got a reaction from DIADES in United States Military Vehicle General: Guns, G*vins, and Gas Turbines   
    I suspect that that is entirely not the goal, for a few reasons:
    1. The main difficulty in firing on the move is stabilization of the gun. Howitzers, for reasons of easy loading, have the gun out of balance with the trunnions very far aft to minimize the breech drop inside; however the recoil impulse with a good muzzle brake is not significantly in excess of that of a NATO 120mm or Russian 125mm, which have been mounted on vehicles as light as the Sprut with no brake.
    Reducing recoil impulse does not help all that much with needing to keep the breech high off the floor for loading and therefore needing to keep it out of balance in the cradle.
    2. The US Army for some reason still has a lot of towed howitzers in service, which I'm sure you'd agree need to be replaced with some kind of SP system cause as they are theyd get creamed in any real kind of war. Unfortunately the budget is not infinite (SAD!), and therefore replacing them all with M1299s is less than doable in any reasonable time scale. And replacing them is a much more pressing concern than firing on the move from a tracked platform. 
     
    The rest of the world has either gone or is going the route of wheelyboys for various reasons, which bring with them their own host of issues, which ideally need to be worked out separately before you start full scale design and development. This is in my opinion what Brutus actually is. Brutus being FMTV based may be down to the fact that its a platform the Army has available for this kind of testing, and not due to it being intended to see service in this config. The total lack of any serious systems integration work shown so far makes me less than convinced that this platform is intended to eventually actually see service.
     
  13. Tank You
    N-L-M reacted to David Moyes in Land 400 Phase 3: Australian IFV   
  14. Tank You
    N-L-M reacted to Roshindow in General AFV Thread   
    It's from Leonardo HITFACT MK2 (essentially the Centauro II turret) brochure, I suppose it is an exaple of use for the product
    https://www.leonardocompany.com/documents/20142/8863233/BROCHURE_2018_HITFACT+MkII.PDF
     
    While it is true the Ariete turret already has a 120mm and more armor, this wouldn't be too bad in terms of optics, the Ariete still has no thermal mode  on the commander periscope and merely a 240p resolution gunner thermal, all managed by an Intel 8086 derived processor (+ 8087 coprocessor, gotta give it that). The HITFACT II turret also has a 12 round autoloader, and the 120/45 might fire higher pressure rounds compared to the 120/44.
     
    Not that it matters much anyway, this was a promotional shot and the actual Ariete upgrade program shows the same turret with minor upgrades (including, speculation, the same optics as on the HITFACT MK2 turret)

  15. Metal
    N-L-M reacted to LoooSeR in Explosive Reactive Armor   
    Object 640 Kaktus ERA system - interesting overlapping position of each ERA tile sure looks like more serious effort than what you see on Budget Cuts 3.

     

     
     
     http://btvtinfo.blogspot.com/2017/10/blog-post_66.html
     
       Also, according to pattent they wanted to detonate tiles in layers to increase amount of counter-actions against incoming penetrator. External ERA cover was involved in counter-action. After first layer detonates, a soft-ish material in between first and second layer of ERA was delaying damaging effects of first ERA detonation while tubes with explosives worked as detonators for second layer of ERA.
       On thise side cutaways you can see those detonation tubes between ERA tiles
     
  16. Tank You
    N-L-M reacted to skylancer-3441 in United States Military Vehicle General: Guns, G*vins, and Gas Turbines   
    ...yet another article which has no memory of FIFV part of HFM/ASM program from late 80s
  17. Metal
    N-L-M reacted to skylancer-3441 in United States Military Vehicle General: Guns, G*vins, and Gas Turbines   
    https://cloud.mail.ru/public/2ven/2jLvAJs3H in folder "IFV Task Force Study results (1978-04)", as bunch of JPEGs
  18. Tank You
    N-L-M got a reaction from Ramlaen in Tanks guns and ammunition.   
    Another option: M900 remanufactured.
    Considering how the same contract has HEI ammo of similar vintage, its possible that it's the propellant (or in the HE rounds, perhaps also the explosive fill) which is past its use-by date, and that the projos and cases will then be available for re-loading with fresh (perhaps IM or temp-independent?) propellant.
  19. Metal
    N-L-M got a reaction from Lord_James in Active Protection System (APS) for tanks   
    https://www.janes.com/article/91385/royal-netherlands-army-selects-iron-fist-aps-for-cv90
    Another win for Iron Fist.
  20. Tank You
    N-L-M reacted to Toxn in Californium 2250: FINAL JUDGMENT   
    So I'm late to this party, but thank you to the judges for selecting me.
    I think this was the most technically challenging competition we've had so far, so I'm glad my design was able to solve at least some of the issues presented. 
     
    Edit: I also wanted to say thank you to the organisers (especially @N-L-M) who helped make this possible. There's at least as much work going on in the background as gets put into making the submissions themselves, and so I'm very grateful to the folk who slogged through on this so that I could have fun designing imaginary tanks.
  21. Tank You
    N-L-M reacted to Scolopax in Israeli AFVs   
    Took me a while to figure it out, but the vehicle that first appears at 0:57 would seem to be UDI's test rig for the Advanced Assault Amphibian Vehicle, a project that would become the Expeditionary Fighting Vehicle (which GDLS won the contract to further develop.)  I am surprised this thing is still around and in private hands.
  22. Metal
    N-L-M reacted to DogDodger in Israeli AFVs   
    Going a bit old school in Virginia over the weekend:
     
  23. Funny
    N-L-M reacted to Collimatrix in Californium 2250: FINAL JUDGMENT   
    Judges' remarks:
     
    Unfinished Designs:
     
     
    Object 138:
     
     
    Object 426:
     
     
     
     
    Bonus panel of the judges politely discussing the finer points of armored fighting vehicle powertrain design:
     

  24. Tank You
    N-L-M got a reaction from Lord_James in The Leopard 2 Thread   
    NERA or ERA. a single 3/3/3mm thick ERA plate at that standoff would likely protect against PG-7V, and 30mm is probably enough to cram in 2 NERA layers back to back. The gap to the 70mm RHA plate is standoff.
    That's one option, anyway.
     
  25. Metal
    N-L-M reacted to Militarysta in Polish Armoured Vehicles   
    Two photos of factory test RAK 120mm mortarsm taken by myself
    (huge - 12MB eacht)

     
     

     
     
     
     
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