![]() Incidentally, these basic indirect fire principles apply to howitzers as well. ![]() They are different things.īut you specifically asked about an indirect call for fire using the fire support tab, which implies a FDC of some kind with therefore charts and darts with firing sticks/tables. So in THAT sort of hybrid case, it should make a difference. This hybrid is what chuckdyke keeps describing. (much easier to have a plotting board than try to draw and solve the triangles). If you are using some kind of hybrid where it's sort of direct fire because you have someone a distance away yelling corrections or giving hand signal corrections (never heard of doing this btw), without firing charts, then being off line makes a difference, and the mortar crew would have to do some trig to convert. Perhaps I wasn't clear enough with that by getting too much into the details of the data calcs.įor direct fire, it should be quite a bit faster because the mortar crew is observing and rather than plotting anything, they will quickly convert a "drop 100" adjustment, for example, to a quick adjustment of the elevation of the piece and fire again. So for indirect fire I would not expect to see much difference in on line of fire or off line of fire FO location. So while it might be marginally easier to have an observer on the line of fire as opposed to a significant angle, that's going to be a VERY small difference in the total fire mission time. And for mortars, time of flight is quite significant when compared to howitzers (factor of 2x - 3x depending on range), so that calculation is even less of the total time. It doesn't take a lot of time to do the calcs to switch from the observer's iine to the firing line.
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