Thanks Thom, I've just now had an opportunity to look at your diagram. That helps explain quite a bit although I'm not convinced that what is provided is all that practical. Essentially the arrangement as described in the diagram provides effective dispersion rather than actual convergence. In the case described, the weapons do not converge at any point. The individual weapons group roughly together at 200m but the MG don't actually converge until 400m at which point the cannon rounds have reached a horizontal spread of 4.5m. At 450m the cannon rounds are probably about 15-20m apart. I'll have to go back to the information provided by Varrattu but I'd have thought to be used effectively you would have to know the exact trajectories of the 7.92 and the 20mm at given ranges. For example, at 200m the weapons all group roughly the same but at an undisclosed distance above the line of sight. So essentially at the point where the projectiles are at their closest, they are also striking above the target. If that's a few cm that's fine but given the low velocity of the 20mm FF cannon compared to the higher velocity 7.92 mm round that seems unlikely. And given that physics are what they are, only certain figures could be used as vert. and horizontal values. If you used something else, the trajectory of the weapon would be distorted, I'd have thought.
Anyway, thanks for the info. I suspect that answers my questions.
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10-06-2012, 01:31 PM
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