Ordnance and LOS

For discussion/questions of Chapter B rules.
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Lionelr
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Ordnance and LOS

Post by Lionelr »


Relatively new to ASL and just started to use Ordnance.

Am I correct to conclude that LOS works exactly the same for Ordnance as for Infantry? To me a beginner it's a bit counter intuitive, as Ordnance often shoots over obstacles making use of observers somewhere else. On the other hand I can imagine that it might complicate things too much, as there are already so many rules. ;) Is there anything about that somewhere in the rules?

In Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
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Neal
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Re: Ordnance and LOS

Post by Neal »


Direct fire ordnance/Gun use the exact same LOS rules as infantry. For example: a mortar crew (not using a spotter) firing at units it can see, or an AT gun shooting at a tank driving down a road. Indirect fire (such as off-board artillery or spotted mortar fire) require that the spotter have LOS to the target.

So in general, you need to have some form of LOS to the target you want to hit.

Sometimes an SSR allows for bombardment in a certain area that doesn't require anyone have a LOS to.
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Lionelr
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Re: Ordnance and LOS

Post by Lionelr »


There's a lot I don't understand. I probably should have added that I'm using ASLSK2, my first scenario, with a mortar on the map. Wondering if I can shoot with it over a building to try and hit gun in another building behind it using another squad as observer.

In Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
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Neal
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Re: Ordnance and LOS

Post by Neal »


Lionelr wrote: Sat Jun 01, 2024 6:46 pm There's a lot I don't understand. I probably should have added that I'm using ASLSK2, my first scenario, with a mortar on the map. Wondering if I can shoot with it over a building to try and hit gun in another building behind it using another squad as observer.
There are no "spotters" in ASLSK. The unit with the mortar must have LOS to its target. And in SK there's no LOS to any hex behind a building. A building (a level 1 obstacle) blocks all LOS.
"If the LOS between two units crosses the building depiction then the building hex is an obstacle to both units if they are on the same level as the building. The building depiction is also a LOS obstacle between two units at different levels."
This article might help: https://asl-players.net/asl-tactical-21 ... example-2/
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Lionelr
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Re: Ordnance and LOS

Post by Lionelr »


Thanks Neal. Great help!

I watched that video and it helped me greatly. Also to understand the concept of LOS in hills.

In Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
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Lionelr
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Re: Ordnance and LOS

Post by Lionelr »


I found this table somewhere some time ago to be able to calculate LOS.

It looks excellent and well-studied on first sight, but I would like to have some examples of calculations with it (if possible with printscreens of units) to be able to fully understand and put it into practice.

Is this a well-known method for determining LOS with taking into consideration height, distance, hindrances and obstacles. And if so, can anyone help with some examples?
Scherm­afbeelding 2024-06-12 om 14.59.51.png

In Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
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Prester John
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Re: Ordnance and LOS

Post by Prester John »


Regarding the table/formula, it works (trust me). I always use the real levels (on some maps there may be seven or eight), and don't try and say "well your target is on level four so call that relative level zero and my observer is on relative level three" ..... no no no.

It's the sort of thing you want to use on the large maps or multiple boards, but if it's just board three and four hills using the basic explanation in the rules should be fine.

Do you have any of the large maps that you want to work through?
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Lionelr
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Re: Ordnance and LOS

Post by Lionelr »


Thanks John,

I'm just a beginner.

I'm for instance trying to understand how far behind an obstacle like a building (level 0), a unit (also level 0) should be standing in order to see it from for instance a level one hill, 4 or 5 hexes away. It seems logical to me, that if the unit is standing in the hex just behind the building that unit on level 1, 5 hexes away, shouldn't be able to see it.

In Flanders fields the poppies blow
Between the crosses, row on row,
That mark our place; and in the sky
The larks, still bravely singing, fly
Scarce heard amid the guns below.
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