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Xoon

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Xoon last won the day on July 23

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About Xoon

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  1. Considered bullpup design?
  2. Quality issues with the welds?
  3. I see, you have taken a lot into consideration. One thing I think you should keep in mind later, is to make the rifle winter/arctic friendly, bigger trigger guard or the ability to flip it away or remove it. Any cast part can be skeletonized for weight savings i think too. No styling, basically, not this: Oh and, If you want some advice on making parts more automation/mass production friendly, just ask.
  4. You have a point, but I think I was a bit unclear. I meant making the rifle more abuse proof that normal, not sincerely more reliable. For example stronger charging handle, as the HK416s is easy to break with too much force, thicker frame which does not bend or get dented that easily. Soldiers do the weirdest things with their rifle, including using them as chairs, hammers and spears. I appreciate you taking the time to answer my questions by the way.
  5. That's nice. Are you going for a light rifle, sturdy or is it still up in the air? Just to give a example of two rifles that fall in each category: AG-3, Norwegian produced modified G-3, very rugged rifle which can take a beating and be abused a lot, often joked about being used as a hammer. HK-416, new service rifle and very light and ergonomic, though has a few complaints from soldiers transitioning from the AG-3 about it being too flimsy and easy to break.
  6. Out of curiosity, what is your target group for this rifle? Military, sport, hunting, fun and/or you?
  7. Xoon

    Competition: Tank Design 2239

    Having the plates parallel to each other causes a slight yawing in the projectile into the plate, effectively reducing the sloping of the main plate. This is why they found reverse sloped spaced armor to be the most effective, it is however, not very space efficient (see my prototype frontal armor. A side question to the OP, what type of projectile does the enemies of the Cascadia use? Mainly APCR like Cascaida? Also, aluminum/steel spaced armor:
  8. Xoon

    Competition: Tank Design 2239

    Out of curiosity, wouldn't the spaced armor on the hull cause APC rounds that do not shatter to have increased penetration?
  9. Xoon

    Competition: Tank Design 2239

    I am sorry, I guess I was a bit vague. I think I meant block diagram, something like this: Also, since I have had some free time (and gave up 3 hours of sleep) I began designing the P2239, kodename "Badekar": Mock up: Prototype rolled frontal armor: Prototype cast frontal armor: I am probably going to test other armor solutions, need to find some decent spaced/composite armor that fit the timeframe.
  10. Xoon

    Competition: Tank Design 2239

    Could you make a flowchart showing the how the PIDs would work? Thyristors? Anyways, electronic PIDs were readily available by the 1950s in the cheap. Pneumatic PIDs were favored simply for their ability to actuate valves and such without a needing extra equipment. Also, as a side question, could I theoretically make a my own autoloader design for my AFV? Or FCS?
  11. Lets talk about fire control systems. How do they function and what makes them so expensive? As far as I understand basic fire control systems: The operator/chip in the round/marker inputs the shell data. A range finder finds the range of the target, and calculates the trajectory of the shell. A sensor (dunno what they are called) finds the height difference between the AFV and the target, compensating for the elevation/depression. A temperature sensor gives the temperature to compensate for loss of power in the gunpowder and air density. A wind sensor gives the wind speed, compensating for the wind. A sensor keeps track of barrel sway and its position and compensates for it. Two encoders keep the positioning of the turret azimuth and gun elevation. A vision camera/vision software tracks the target, compensating and moving the turret according to the target. (Also tracks target heading?) A laser surface velocimeter measures the targets speed, and compensates. All this is feed into a microcontroller, which calculates the appropriate coordinates, which is feed to most likely two servos controlling the turret traverse and elevation. When the gunner squeezes the trigger, the systems safety is off and will pull the trigger when the gun aligns with the coordinates. The microcontroller also feeds the information into the AFV's main computer. Of course, some formulas and PID regulators would be used to gain the appropriate values. This is how I theorize the FCS of a modern AFV works. Top of line, as you can begin shaving off features to have it cheaper, though the vison camera probably comes for free if you have a thermal or digital sight. Feel free to correct me if you want. If anyone has information about FCS or can add some more please do.
  12. Xoon

    Competition: Tank Design 2239

    Welding aluminum would also be more costly. Need to have the surface oxide layer grinded away. Also welding aluminum in general is harder because of its low melting point, high heat capacity and good thermal conductivity. Machining aluminum is however, much easier than steel or harder alloys. Drilling and cutting hard steel plates is also a huge pain in the ass. I hate stainless steel, and it is not even close to the hardness of armor steel. Automation would probably fix most of these issues. Robotic welders would accomplish a "perfect" weld, drill jigs would drill out all the holes on on side of the hull simultaneously. Casting and a good supply of tungsten bits would greatly decrees man hours needed.
  13. Xoon

    Microfighters and other Air stuff coming from Romania

    *Kongsberg NASAMS intensifies*
  14. Xoon

    Competition: Tank Design 2239

    In pains me that I probably won't be able to throw my hat in the ring. But in case I get the chance, I have a few questions: What is the average height of a conscript male? What fuel does the enemy use? Is the technology cut-off date 1969? Is cast armor roughly 15% weaker?
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