-----from Para's Tutorial----
The Ghost Recon (GR) Velocity Equation: Vr = mV + (P x R) + (M x R^2)
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My physics may be alittle rusty, but Para's functions - as seen in IGOR as well, seems to have the acceleration the wrong way. (not dissing Para)
The second power of the function is adding to the speed, such that the round will accelerate as it gets very far away. This is the function of a parabola centered right (foward in distance) and high (starting velocity). As it goes distance to the right, it drops velocity at first, but then as it continues further right in distance it levels off and then curves back up in velocity- accelerating. Sure, the first coefficient is usually a negative number, but the second variable (M in this case) is usually positive.
This is evident in the original missions M24.gun stats. The gun starts at 804m/s, and does decelerate for a while, but it decelerates less and less till it hits 263m/s at 1480m. It the starts speeding back up, and will skyrocket at 1700m and 2000m. That bullet will never drop below 263m/s. This is the model of .308 that GR used in most of its .308 guns.
Yes, I know most soccer-moms wont be shooting at things a kilometer and a half away, but I was trained on the M60 to use Plunging Fire with a Foward Observer to rain bullets in on targets 1500-3000m. If GR is going to us an obfuscated set of detailed physics to model ballistics, I would just like functions to work at all ranges, and not have the bullets magicly stay above 263m/s.
BTW- I'm a GR newB, so if this topic has been ranted to death already, just let me know. I would like to thank Para for his Tutorial, it does a good job of explaing the math, I may not agree with it, but it's well written.
Also, guys use a 44magnum to knock over steel rams at 200m with 90% hit rate, and hunt whitetail deer, but the GR comunity seems to think pistol bullets should just vaporize at 75m. --- I 'll bring that up in another post.