Artillery Delays

[CStock88]

This actually might come up in my campaign, as the PCs are still apart of a functioning infrastructure (at least, so far!). The PCs have been assigned the role of acting as FOs for the rearguard that's in place to cover the retreat of the larger organization they're apart of, due to the fact that normally they are in the role of a scout unit. All other things being equal, and the division's actual FO crews dead by this point, the PCs might be able to pull it off... (of course, it won't be as easy as "just" waiting to call in the fire mission; enemy infantry seeping through the thinly held line, ahoy!)

Artillery. Assuming a company commander requests a fire mission, and assuming that he has, say, a couple of gun tubes allocated to him, and he calls in a fire mission (or the FO calls it in, or whomever)... is it likely that said fire mission will take a long time And if so, what would a long time possibly be A half hour Twenty minutes I'm kind of wondering to see how much suspense I can fit in, as they watch the five surviving Soviet tanks advance, effectively unopposed, as the rest of the unit's immediately available anti-armor ammunition is already considered expended at this point.

I'm assuming that if the place he wants the shells dropped is pre-planned and approved by the FDIC (or whatever makeshift organization is there to take its place!), the time would be significantly cut down. I'm also assuming that once the artillery makes a fire mission, it's going to pull up stakes and run like hell, probably because their shells are rather limited, not to mention wanting to avoid any return fire. (I actually might have them run out of rounds, forcing the PCs later on to haggle at a friendly depot, or something, to get some more).

[LAW0306]

Hope this helps..
Your call for fire goes to your parent unit (Higher) to there Fire support cordination center. they then make sure its not a friend unit. then they call Arty or your own bn 81mm section then they fire the mission. this takes at most 90 to 120 seconds in war time with a trained unit. so the miniute they call for fire it takes 90 to 120 seconds. now from your company 60 mm mortor's. it's your call to your own FDC (the Mortor secton leader) and he fire's that second. so for your own assets its on time on target.

[CStock88]

Thank you for the quick response! That's rather illuminating, actually. I'm not sure where I got the "half hour" idea from... probably some rather erroneous data, combined with the fact that I don't actually know much about it.

[LAW0306]

mail me any time

[chico20854]

A longer answer is, it depends.

It depends on whether there are reliable comms with the guns. Land lines get run over by trucks. Radios (and field phones) have batteries fail. Radios get jammed or can't reach the guns.

The guns may have other missions they are firing. They may be out of service for maintenance (only a portion of the battery at a time, resulting in fewer guns, but in 2000 many batteries are probably only one gun). They may be out of ammo. The crew may be asleep, possibly after having a little too much ethanol from the fuel tank.

But in the situation you describe, with a company commander allocated fire support and a specific mission, it is likely to be quick, especially if some target areas were pre-registered. (And pre-registering fire is routinely done when the time is available - a map and visual recon of the operational area will likely locate several target areas to have the gunners do the calculations on.)

And as for the group not being the regular FO crew, no big deal. Calling for fire is routinely taught to all officers and all combat-arms NCOs - the US Army considers it a basic military skill. A FO is a luxury that most don't expect to have.

If you want a good idea on how an artillery unit functions in combat, read Raellus's father's book Able on the Way http://www.amazon.com/Able-Way-David...8358771&sr=1-1 . It's about an artillery unit in the Korean War, but precious little has changed between the period described there and my experience in an artillery unit in the 1990s.

[CStock88]

Thank you as well, Chico. The longer answer you gave certainly has some interesting points to use in the future. Also, the book reference is much appreciated! When I get the cash together, I'll certainly give it a good look. I'm always looking for new and cool books to read!

[Targan]

This is really good info. Thanks Law and Chico.

[Graebarde]

Now if you REALLY want to throw some slop around, considering this is 2000 and at least 30 months AFTER supplies more less stopped flowing, those gun barrels might NOT be in the best shape, which means even if all the computations etc are correct, and the gunners put in the right elevation and azmuth, and nobody botches the mission, the weak link is the barrel. SO accuracy will come in. The mission of at least one of the barrels could go to never-never land, never know where it went and where it landed. (happened to my Dad in WW2, though that was defective barrel not one shot out). Something to think about before calling danger close eh

As for FO's. As stated every combat arms NCO is taught calling fire as are the orficers. And even lower than the NCO chain can do it in most grunt units. As for all the FO's being dead, which is entirely possible and HoG call, there would be 'replacements'. In our battery, the FIST was agumented by Survey. We could function as a FIST after completeing our mission as survey, and spent a LOT of time observing and calling fire. But that was 20 years before the Twilight war.

[Jason Weiser]

A longer answer is, it depends.
If you want a good idea on how an artillery unit functions in combat, read Raellus's father's book Able on the Way http://www.amazon.com/Able-Way-David...8358771&sr=1-1 . It's about an artillery unit in the Korean War, but precious little has changed between the period described there and my experience in an artillery unit in the 1990s.

I'd say a lot of those FDC methods..if not older ones would come back into vogue in the latter parts of the Twilight War..my thinking (based on my wargaming research, not on much reality mind you...so anyone with some reality...PLEASE INTERJECT!) is that WWII and WWI methods (preplanned barrages, rolling barrages etc.) might also see a reappearance. I understand response time isn't just the shell flight time..but the time taken for the fire mission to get to the battalion FDC, the FDC to process the request and assign the fire mission

[Graebarde]

I'd say a lot of those FDC methods..if not older ones would come back into vogue in the latter parts of the Twilight War..my thinking (based on my wargaming research, not on much reality mind you...so anyone with some reality...PLEASE INTERJECT!) is that WWII and WWI methods (preplanned barrages, rolling barrages etc.) might also see a reappearance. I understand response time isn't just the shell flight time..but the time taken for the fire mission to get to the battalion FDC, the FDC to process the request and assign the fire mission

This is true. Without computers, the computers in FDC will be back the their manual methods, which take more time than just punching numbers into a computer. But preplanned fire is common. SO you direct from a preplanned know target. It works well in defense, but is more difficult on the offensive and in a fluid battle field even worse.


More on accuracy. IF they don't have good meterological data tables etc, well the computations will be off, and if survey is inaccurate, talking stick and chain here, since the GPS is probably non-operation or off so much as to be worthless. There are a numerous variables. Then you have HUMAN ERROR in doing the math, "Damn Jack you forgot to carry the one!"

(In the good ole days, the first TWO weeks of the eight week Artillery Survey course was Trigonometry. IF you failed the trig block, you were either recycled to do it again OR were reassigned to a less mathematical MOS (got to be a gun bunny). We started the course with 32 in class, by end of course there were 11. And the funny thing is all we had to do is add and subtract because we used logs and tables. AND NO calculators. Think of doing trig for eight hours a day for two weeks! )

Grae

[Jason Weiser]

Good thing I never was interested in branching arty...my math stank.. I'd have taken one look at the trig and ran screaming from the room!

[Graebarde]

Good thing I never was interested in branching arty...my math stank.. I'd have taken one look at the trig and ran screaming from the room!

LOL. But the two weeks was worth 3 credits of college trig

[chico20854]

More on accuracy. IF they don't have good meterological data tables etc, well the computations will be off, and if survey is inaccurate, talking stick and chain here, since the GPS is probably non-operation or off so much as to be worthless. There are a numerous variables. Then you have HUMAN ERROR in doing the math, "Damn Jack you forgot to carry the one!"

And to keep things fun, then you have human error even if the numbers are done right. We had an E-6 show up as a new truck driver in our ammo platoon after he entered the wrong settings into the gun itself. That round was off by over a mile. Those sort of errors get people killed, luckily that particular one didn't.

And as far as things being worn out and not working, another unit on post had an 8-inch HE round explode in the barrel. I forget what the cause was, but I think it was also human error. One less M110 in service, luckily no funerals...

[Grimace]

My best friend was FDC for the Marines. He told me from the moment the first call went out for a fire mission, it took (using computers) 90 seconds to have a round impact. If adjustments were made, depending on the FO, it could take up to 30 more seconds before the Fire For Effect was called. Then all the barrells opened up.

They also practiced "cold", meaning without computers and were allowed 30 seconds longer to get the first round on target. He said most times they could usually beat that by a few seconds. Now, considering it's Twilight, you're probably not working with a lot of people who know FDC and can do the trig so quickly, so you might be looking at 2 minutes, maybe more, before the first round hits and the FO can adjust or call FFE.

"Called" is when an FO calls in a request for artillery. Spotting round is fired, corrections made (depending on accuracy of FO and FDC) and then FFE is called when "close enough". Called missions have to have the fire mission type set by the FO. If he wants WP or ICM or HE, he needs to state it.

For "Time on Target", the location is determined, the fire mission type set, and the time for the mission to take place is set. Thus the name "time on target". It's not necessarily super accurate this way, but it's good for a barrage on something like a town or other large-ish location.

And "Preplotted" is where the tubes are zeroed in on an area long before the action there begins. The location is marked. When an enemy unit enters the preplotted area, the FO calls it in, the tubes go right to the setting they need to be at (since it was all zeroed in before hand) and the barrage can begin. No need for spotting rounds for preplotted artillery. Usually the fire mission type is also preset for this, but could be changed if need be.

Hope this helps.

[ChalkLine]

Fuzes are an art and science in themselves, and its likely WW3 fuzes may range from prewar techno-wonders to wartime rough-and-readys.

A fuze error killed an entire gun crew in Spike Milligan's war memoirs. The guns were in a box layout and a rear gun's round exploded about five yards from the muzzle, right over another crew. Evidently defective fuzes aren't too rare.

(By the way, weapons use 'fuzes' and electricals use 'fuses')

There's a lot of data on fuzes available on the net, I encourage any GM to look them up and see how many options the fuze gives a gunner. Also, go over to GlobalSecurity and look for 'big bullets for beginners'.