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Sturgeon's House


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Sten last won the day on July 10

Sten had the most liked content!

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    Guns, ballistics, mechanical engineering, brewing, cats, material science.

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  1. Excessive protection achievement unlocked. I basically looked at the requirements and said "... sounds reasonable... now how I stop a Kornet?" Cost issue is a fair point and I'm never doing a conical onion NERA array... official protest is "We can make square modules." On the IR floodlights being an issue, yes. But as far as I understand FLIR wasn't an option, and it was standard for tanks to have those in the past, I'm pretty sure one could simply cover or turn them off. Curious about what the weakspots in the armor are. Not complaining, but wonder what escaped my attention. Also I'm happy it wasn't overweight, that was my main concern after I committed to borderline meme
  2. My opinion has expressed elsewhere, but not here. I think it would be really interesting to do planes. My favorite are late WW2 superpro stuff, but you need to go specially deep into the engine autism as well and propellers, those things were crazy optimized. Earlier jets, for me aren't as interesting, but they are simpler, add power and it flies... see the Vampire, Salamander, those wacky Yaks and other abominations. We could perhaps bridge the gap with turboprops for COIN or something. Alternatively It would also be interesting to see ships of some sort, albeit the amount of detailing autism for even smaller ships is daunting. Perhaps a PT boat of sorts... just throwing ideas.
  3. Ok, so here is a tutorial of how to do that: 1: Invest in $ROPE 2: Receive your $ROPE 3: Use it 4: ???? 5: PROFIT!
  4. So now you not only is a whinny little bitch, but one of those spineless cowards that say his shit in subtext, then when called out goes "but I never said that which I clearly implied!" You whined you didn't get special treatment and the judges held your held and gave you second change. Then you imply it was was because one the judges is Russian and you never met one without anti-German bias. We then made fun of your retardation, which you now backpedal. You want to be a wehraboo retard? At least own it.
  5. The fault of failing to read, or ignoring, the requirements for the submissions. Which is LMAO, but would be fine and everyone has days of retardation, but no... you had to whine like the little bitch you are, had to blame on the evil Russians.
  6. Persson Engineering Solutions and Brewing, Main Battle Tank, MBT-01, "Gigan" FINAL Table of basic statistics: Parameter Value Mass, combat 82 tonnes/180779 lbs Length, combat (transport) Hull 26.25 ft. Total 37.15 ft (to gun crown at 0°) Width, combat (transport) 13.091 ft Height, combat (transport) Turret Roof 7.111 ft. Maximum permanent height 7.718 ft (to highest permanently fixed feature.) Total height 10.281 ft (to top removable feature) Ground Pressure, zero penetration 1967 psf Estimated Speed 40-43 mph Estimated range 470 miles (38 mph on road) Crew, number (roles) 3 (driver, gunner, commander) Main armament, caliber (ammo count ready/stowed) 5" L50 rifled gun. 42 rounds total (18 in autoloader, 24 in 4x6 hull storage bins) Secondary armament, caliber (ammo count ready/stowed) 5 machine-guns, 4 being independently moved: 2X.50" HMG (1 coaxial, 1 for commander.) 3X.30" GPMG (1 on commander's periscope, 1 for gunner, 1 on the bustle for dismount troops.) 1000 rounds for each HMG, 2000 rounds for each GPMG Vehicle designer’s notes: explain the thought process behind the design of the vehicle, ideas, and the development process from the designer’s point of view. Vehicle feature list: Mobility: 1. Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance. 2. Engine: Turbo Diesel V12, 2904 cu in, similar to the old MB 873 found in the archives of the pre-happening world. Rated for 1500 to 1800 HP. Longitudinally mounted on the rear. Liquid cooled, heat exchangers located under the engine bay cover. 3. Transmission: Double differential, 10 speeds (5 forward, 5 in reverse), neutral steering capable. Similar to the RENK HSWL 295TM found on the archives of the pre-happening world. Transversely mounted on the rear. 4. Fuel: Diesel, or kerosene, jet-fuel or bio sourced analogue, or any high cetane number fuel given correct tuning and adequate lubrication properties. 680.50721 US and A imperial Gallons, in 4 internal tanks. Provision for extra fuel tanks inside the bottom double hull at the user's discretion (normally no installed.) 5. Other neat features in the engine bay. 6. Suspension: "Dumb" hydro-pneumatic suspension, suspension elements located on housing units bolted externally to the sides of the hulls and connected to the suspension arms via a gearing system, this is done in order to reduce the unsprung mass of the suspension as well as to reduce the size of the arms, keep the hydro-pneumatic elements further away from obstacles while still keeping replacement and field service easy. 14 sprung road wheels, 2 idler/track tensioner wheels on the front, 2 driving sprockets on the rear, 14 return rollers. Survivability: 1. Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance. 2. Link to Appendix 2 - armor array details. 3. Non-specified survivability: a. The rear hull ammo stowage units are located in water tanks, containing 56.5 gallons of water each, those can double as energy replenishment for the heat exchanger of the engine, or for emergency drinking water for the crew. b. The backup shared optical range finder allows for the commander to fire the gun in case the gunner is unable to do so c. Turret features a large cargo rack that allows for more than enough capacity for pioneering equipment, camping equipment, crew belonging, extra equipment like smoke grenade launchers, add-on/ad-hoc spaced armor, spare parts, or a place for dismounted troops to do things. d. Tank is equipped with two long range radios and two large antennas, guaranteeing redundancy and simultaneous communication with other tanks and a base for example. e. The crew compartment in the turret is set up as low as possible in the hull, with the commander and gunner siting in a semi-reclined position. f. Turret crew compartment is separated on the middle by the gun compartment, with armored bulkheads on both side, with a interconnected part on the front of the compartment. This allows for redundancy of the crew and the change that a side penetration will not kill/incapacitate the whole turret crew. g. The diver is surrounded by large fuel tanks on both sides, adding an extra layer of protection. h. The turret is a combination of the "cleft" and "wedge" concepts, it offer a very low silhouette in normal conditions and the angled roof further reduces the silhouette in a hull down position with the front raised. Due to the aforementioned separated gun compartment a dead-on penetration of the mantle, while obviously a mission-kill event, will probably not affect the crew. I. The turret can be rotated electrically or manually by all 3 crew members. This is to extend the fighting endurance in case of the loss of crew and systems, and to allow the possibility of the driver to escape from his main hatch. Firepower: A. Weapons: 1. Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance. 2. Main Weapon: 1X Modified Co-Developed G46 gun a. Type: Rifled, L51 automatic loading. b. Caliber: 5"x33" Texan (127x840mm), unitary, steel non combustible case. Provision for future semi combustible unitary cases. c. ammunition types and performance: APDS (24" of RHA penetration at muzzle), HE (175.45 oz of composition B explosive), HEAT (15.75" of RHA penetration), experimental APFSDS. Above, ballistic data for the APDS round. Above: Detail of the APDS, it's a capped DU penetrator with a ballistic cap and wobble cap (also DU), in an aluminum sabot. Above: Penetration data for the APDS Above: Detail of the HEAT, high pressure. Above, detail of the HE munition. d. Ammo stowage arrangement: 42 rounds total. Primary/ready stowage, 18 rounds in belt type auto-loader on bustle, selectable ammo and capable of changing/unloading rounds, capable of being internally re-stocked from both the commander and gunner postions. Secondary stowage, 24 rounds in 4X6 sealed bins, two in front and to the sides of the turret basket inside the fuel tanks, two on the sides and rear of the turret basket inside water tanks. Primary stowage has blow-off panels on the roof and blast door separation it from the crew compartment. Secondary stowage is in individualized sealed bins surrounded by fluid. e. FCS: Primary FCS: Ballistic computer connected to active 2 axis stabilizer, laser range finder, day gunner sight and IR gunner sight, automatically adjust elevation and point of impact after a range measure is "locked". Secondary FCS: Gun Slaved to backup optical range finder f. Neat features: Muzzle Brake, provision for extra coaxial MG, or optic sight, insulation thermal sleeve, growth potential. 3. Secondary weapon: 3x GPMG, .30 caliber, one on the gunner's cupola track, one in a the rear bustle for dismounted troops, one remote controlled on commander's periscope/panoramic sight. 2x HMG, .50 caliber, one coaxial on the main gun mantled, one on the commander's cupola track. Exact gun type and total number installed varies and is up to the user. This is more to exemplify the total installation points. a. Type: HMG DShk or M2 or similar. GPMG M240 or similar type. b. Caliber: HMG .50 BMG or similar. GPMG .308/7.62x51mm NATO or similar. c. AP, API, tracer, etc... d. Ammo is stored internally from a single stowage of 1000 rounds belt for the coaxial gun and 2000 rounds belt for the panoramic sight gun. Other guns are fed from externally mounted boxes/pouches contained belts of 100 to 200 rounds. Other boxes/pouches stored internally on the crew compartment on the turret next to the blast wall. e. Coaxial gun is slaved to the main gun and its FCS. Commander's periscope/panoramic-sight gun is remote controlled and stabilized on 2 axis. Other guns are manually controlled and non stabilized. Possible provisions for remote control weapon stations are possible in the future. f. Dismounted troops have access to their own gun on the bustle. Commander has two gun options, one allowing him to fire from a closed hatch. HMG coaxial offers better anti material capability than the usual .30 coaxial on most tanks. Has grow potential for more remote controlled weapon stations an extra coaxial if so desired. 4. Link to Appendix 3 - Weapon system magic. This is where you explain how all the special tricks related to the armament that aren’t obviously available using 1960s tech work, and expand to your heart’s content on estimated performance and how these estimates were reached. B. Optics: 1. Primary gunsight: Gunner has access to a daytime stabilized optic with a 0-10 magnification, a stabilized IR night sight with IR floodlight (located on top of the mantled) with a 0-10 magnification, a laser range finder and a back-up optical rangefinder located on the rear of the turret and shared with the commander. Commander has access to it's own panoramic sight/periscope with day time and IR modes, 0-8 magnification, and the shared backup range finder. 2. Other optics: Gunner and Commander have access to an array of fixed periscopes on their hatches giving a 360° field of view (not counting obstacles.) Driver has access to 3 periscopes giving a wide field of view. C. FCS: 1. List of component systems, their purpose and the basic system architecture. a. Gunner primary sight, located on the left side of the turret rooftop, enters the crew compartment via a hole behind the armor modules. Daytime optic, connected to ballistic computer, laser range finder and backup optic rangefinder. Stabilized on 1 axis b. Gunner secondary sight, located on the same housing as "a", IR, same functions. c. Commander panoramic sight. Optic and IR combo on same rotating and extensible housing, on the same location as the gunner's sights, but on the right side. Not connected to the FCS per-se, but it's able to "lock" a direction and then command the turret to rotate to that position. Stabilized 2 axis d. Laser range finder and IR illumination unit, located above the mantle, parallel to the gun bore. IR and Visible laser receptors/emitters, 2 IR floodlight on the sides. Permanently fixed to mantle and passively stabilized vs the gun stabilization. e. Backup optical rangefinder. Mounted on the back of the crew compartment, above the blast door and extending to the sides of the turret, outside. Slaved to the gun and its stabilizer. f. Ballistic computer. Based on the electronics of the flight computer of the new crop of guided missiles. Provides adjustment and coordination of the above components, depending on vehicle speed, distance, ballistic behavior of ammo type, vehicle inclination, activelly tries to compensate or dampen vehicle movement, updates reticle for adequate POI and adjust gun and turret position for a "point and shoot". Can be manually overridden. Currently the R&D department is investigating the feasibility of accounting wind and thermal mirages. Computer is located under the gun compartment in the front of the turret basket. 2. Link to Appendix 3 - weapon system magic, if you have long explanations about the workings of the system. Fightability: 1. Very low profile, smaller target, less change of not only hitting the vehicle but also hitting a vital component. 2. Even lower profile in a hull-down, inclined position with basically no vital components exposed. 3. Great ride quality, guarantees crew comfort, less stress on sensible equipment, less work of the stabilizers and better control of the vehicle in rough terrain. 4. Hunter-Killer capability allows for more efficiency of the crew, better situational awareness and quicker reaction times. 5. Good crew survivability, guarantees the safety of investment in terms of money and money spent on training a professional crew as well as safeguarding the data they collected even in the case of a defeat. 6. Good offensive capability and flexibility when dealing with multiple unarmored targets. 7. Good serviceability/repairability on the shop or on the field. Even complex to repair or single-use systems can be replaced on the field as a "Plug and play" affair. 8. Great endurance in terms of crew livability and ammo/fuel/supplies. Guarantees longer top-performance period for the crew as well as increased survival changes in case of being removed from the logistical supply chain. 9. Multi fuel capability in a known and well understood engine format, features that facilitate logistics and possibly foraging. 10. While not a currently widespread threat, laser guided ATM are a possibility and the design team considered prudent to not just rely on passive defenses but take a more pro-active aproach and include a IR dazzle feature in the two IR flood lights. 11. The auto-loader design allows for the replenishment of the ammo supply from an external source without the need for the crew to leave the interior of the vehicle. While not ideal, and somewhat cumbersome it offers the possibility to do so while the crew remains in a near-ready condition. Additional Features: 1. As previously mentioned the modular nature of the composite armor modules allow not only for easier repairs and potentially avoiding the need to refurbish a whole macro component (turret and hull), but also allows to tailor the protection to the needs faced on the theater of operation. For example the arrays can be changed from light NERA to heavy NERA, a combination of both, or a combination with ERA. This also means that long range transport can be facilitated as the tank can be broken down into the tank proper and some armor modules in case there is a weight limitation. 2. The vehicle has growth potential as one of its mission goals. The modular armor, the multi-fuel system, the large caliber gun, etc. There have been some interesting researches into smooth bores and APFSDS, semi combustible cases, higher operating pressures and exotic materials, and while the design team felt those new technologies aren't mature enough to be incorporated into the current entry, nothing stops the user to request a upgrade of the weapon's system's in the future, without major changes to the rest of the vehicle. The same goes for the Free expression zone: This project is dedicated to one of our best engineers that passed away recently due to "circumstances". The project is also dedicated to our chief engineers Dr. Eneas PS: If necessary the blueprints for the vehicle or any component can be provided to the competition judges.
  7. This thing makes the Brazilian Nuclear submarine development looks easy and smooth by comparison. But what baffles me the most is not that this is a bad vehicle, but that Indians themselves defend it. Why? Why defend something you know is shit, bad for the country you say you love? Every nation has made some POS equipment before, but to defend it because muh national pride is ridiculous.
  8. I'm basically ready, I just need to correct my mantlet because LMAO cleft turret and late modeled autoloader. So I might need one more day. Toxn's tank looks really good, nice weight management.
  9. Those sights should be buried in the armor block, so I don't think it's too much of a weak spot. Also it's early similar to my own turret design. Also so are we saying that the Challenger 3 has a Leo turret made to look like Challenger 2 because... bongs? LMAO
  10. MUH NERA Birgus, (or Lynx, don't know yet the name) the Fulda Gap fever dream:
  11. ^ I rest my case Stealth is myth guys. It's not that I'm too dumb to understand the concept and do my own research.
  12. Stealth obsolete confirmed! Also LOS is not unreasonable for most competitors, specially given the ground pressure requirements. Maybe we should have used interleaving wheels as the master race figured out many decades ago.
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