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Sturgeon's House

Xoon

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Everything posted by Xoon

  1. Videos of live fire exercise celebrating that Forsvaret has finally received its last CV90s: https://www.tu.no/artikler/vi-har-samlet-det-beste-fra-cv90s-skytedemonstrasjon-i-en-video/464305 https://www.tu.no/artikler/vi-sender-live-forsvaret-feirer-panservogn-leveranse-med-skarpskyting/463551 Another video from forsvaret:
  2. So it levitates on a cushion of gas? I read something about it on the War Thunder forum that it used bearings. Is the gas used for counteracting the rotation? Page 7 SH_MM talks about liquids in armor. The only time I know the forum talked about it. Bronez also links a document: http://onlinelibrary.wiley.com/doi/10.1002/prep.201500137/full
  3. Ah, I see. By ignition air, do you mean the air that goes into the cylinder for combustion? And why use air as cooling instead of watercooling? Considering the recovery turbine, I think it could be possible to use a gas turbine for even better power and acceleration, which also doubles as a APU. Water injection is also a alternative.
  4. Pfft, of course not, who would want to squeeze more power out of it? he he * discreetly crumples paper and throws in trash*
  5. Recently was bored one day and drew up a simple car design. For the most part based on the Tesla Model S, Lamborghini Huracan, Mercedes S class and Volvo Polestar 2. The idea was to make a more aerodynamic car, the front is a continuous tear drop shape instead of a notch for the hood. This is possible since its a BEV. The rear is a Kammback to maximize performance and design, while still being practical and not ugly. No side mirrors, just cameras like in the Audi E-tron. It has a low profile (exaggerated in the drawing) plastic skirt along its bottom, to p
  6. Interesting, I always thought magnesium was very hard to weld. I guess it stems from the fear of the entire work piece catching fire, even if it is very unlikely. Do you use the supercharger as a blower or for better torque and low end RPM? For the compound turbo, is it something like this: I suppose that you could have a compound turbo sized so that it spools up at a large way of the rev range. For example. Lets say the tank spends most of its time between 800-1400 RPM, then it would be able to produce enough exhaust gas to power the turb
  7. Are you sure you can use compound turbo and a ordinary turbo? Wont the compound turbo rob the exhaust of all its energy? Also, will the engine run at a constant rpm? If not, I am not sure if a compound turbo would be worth it. If you want the maximum out of the turbo, you can use a 3 stage turbo setup, and small, medium and large turbo to cover the entire range and pressure. I don't remember if variable geometry turbos are invented yet. Also, is the vehicles auxiliary power, powered by the exhaust? Why do the driver need theses gears? Also, if yo
  8. Not really, you can make gasoline engines with high start torque too. To main reason diesel is used by the military is fuel efficiency. The issue with having a good torque curve on a gasoline car usually gives it horrible fuel economy. Just remember to factor in how huge exhaust can get. Especially turbo exhausts. And I am all for special engines.
  9. Add a bit of methanol, and they will learn quickly. While true, it does not translate into engine power. Look at every hypercar, they run on gasoline, and in some cases E85. I am most concerned about the intake and exhaust, cooling should be a non issue if it is watercooled.
  10. I don't really see the advantage to this design. What about a Ethanol powered Turbocharged V12? Nowhere in the rules does it state that it needs to be diesel. And a ethanol engine would blow other engines out of the water when it comes to power density. Also, I would consider ethanol as more progressive and environmentally friendly, fitting for such a glories nation as ours. Rotary is also possible. One thing I have been curious about, is if it is possible to make a X opposed piston, were the piston heads have a wedge shape, and four cylinders meet in the c
  11. Quick question: Minimal structural thickness for a 40 ton vehicle in Alu is 45mm, but can do do something like 25mm Alu + 50mm air + 20mm Alu? Imagine using a pipe, instead of a solid metal piece. Would be useful for inserts. Also done some more work on the chassis:
  12. I think I am done with my suspension, for now: It comes out at roughly 350 kilograms. I would say probably closer to 400kg though. On the hull:
  13. I might run with such a suspension design, seems more leak proof than a vane motor. Honestly, I might be putting way to much time into the suspension unit, but hey, at least I know how pretty much all the hydropneumatic suspension units work in AFVs.
  14. Been refining the suspension, currently done with the suspension arm: Next on the agenda is the suspension mount: Currently work is progress. This is all I am going to do today, its waaay to late:
  15. pft, who needs turrets anyways? Anyways, completed my suspension unit: If anyone is interested in knowing how the suspension works, feel free to ask.
  16. Just to prove that it actually fits the crew. The dummy is 1,8m tall, so a bit taller than the California standard. Its actually surprisingly roomy, more roomy than I expected.
  17. Now I am intrigued. I would assume they simply used a shell that could penetrate something like a 50mm steel plate, found the needed thickness for the other material, and divided it by the total mass. For example: A 50mm steel plate would stop shell A. A 150mm aluminum plate would stop shell A. Aluminum is close to 1/3 the weight of steel. Therefor: 3 times the thickness divided by 1/3 the weight would equal a mass efficiency of 1. Extremely simplified of course.
  18. Its seems the new gun wont fit. It also looks hilariously out of proportion compared to the rest of the vehicle.
  19. As you wish her majesty, the most Gracious and Serene Queen Feinstein VIII! We have recently introduced our new gender equity policy and" taken care of" our excess cishet white males. Our new most skilled and autistic genderfluid dyslexic engineers are hard to work for satisfy your needs! No less than 8 inches! We will make sure all our guns satisfy your needs! Long live our Great and divine Queen for a thousand years! Let her words be heard! (On a side note, got damn, now I need to fit a huge 200mm gun into my poor, tin
  20. Let me fix that for you. I can actually go up to about 1100mm wide tracks. Though I am heavily considering going for 1600mm tracks and go crazy with 1000mm thick side armor. Though it would probably look ugly. Its not that bad actually. I just used a very unconventional layout.
  21. Been working on the armor array and refining the drive train, gotten pretty happy with the side armor. Next I need to figure out a good suspension layout. Does 1000mm wide tracks with lift-able roadwheels to make turning easier sound like overkill? Not sure about contact length yet, the vehicle is 4,5m currently, so maybe 3,5m? That would be very roughly 7m2 of contact area if the contract are was a flat metal sheet. That be about 0,57kg/cm2.
  22. If the diameter of a round is larger than the thickness of the material, would it effect its effectiveness?
  23. Quick follow up: Does overmatch play a role? ( 5mm HHA equals 10mm RHAe, vs 12,7mm etc) What about fence/nets?
  24. Quick questions regarding spaced armor and perforated armor: Does the 50mm spaced armor rule count for artillery fragments, autocannons and small arms? (7,62mm, 12,7mm, 20mm etc.). Is the spaced armor rule based on RHAe? (170mm aluminum equals 50mm RHAe, 25mm HHA equals 50mm RHAe etc.) Is our glories republic capable for making perforated armor? Is our glories republic capable of making ribbed armor?
  25. If this power creep keeps up, then by the next competition this will happen: "You call that a cannon? THIS IS A REAL CANNON. Your puny 500mm cannon is nothing!"
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