How accurate of Sg Artillery ?
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............(A)=unassisted PER. (B)=assisted PER .(C)=PED
LWSPHÂ…(A)0.3%Â…Â…... (B)0.5%..........(C)less than 1 mil
FH 2000.(A).0.25-0.5%..(B)NA............(C). 0.56-1mil ....
US MAV(1)(A) not exceed 0.3%.(B) 0.35% (C) not exceed 1 mil
S African G6...(A) 0.48%(2)......
(PER=probable error range ,PED=probable error deflection,poster's note)
Details of SG LWSPH and FH 2000 from http://www.stengg.com/kinetics/listing.aspx?pdtypeid=1
(1)MAV-http://www.fas.org/man/dod-101/sys/land/docs/bct/Annex-C-MAV-Howitzer-31-Jan.htm
The contract where BIONIX was one of the 4 finalists and the only foreign vehicle.
(2) see http://diana.gl.nps.navy.mil/~dholwell/os2080/lsn18.htm
The likelihood of a round landing one probable error (PE) from the mean is 50% (25% over, 25% short). The likelihood of a round landing two PEs from the mean is 82% (41% over, 41% short). This figure is adapted from Figure 3-11 of FM 6-40, US Army.
Within 50 m of targetsround targeted in conventional firing range land within 50 m of target .
LT COL LEONG KWOK LUNG ,Commander 9SA.Military Technology. Issue 4 2004.p48. -
with ICMs or DPICMs, 50m isnt too much to worry about.
Most guns fire in batteries, and each ICM or DPICM can saturate an area the size of a football field pretty thoroughly.
With ICMs and DPICMs available, I don't see a need for the standard HE rounds, unless I'm missing something here. -
That's my friend is tha Gaussain distribution.
PER=probable error range or CEP= Circular error prob. is based on the above distribution.
For example , at range of 1000m, with CEP/PER of 1%, abt 50% of the round will fall within 1% of 1000m from target, i.e. 10m or 1 PE.
32% will fall within 1~2 PE, 10~20m from target.
14% will fall within 2~3 PE , 20~30m from target.
Lastly 4% will fall with 3~4 PE, 30~40m from target.
LT COL LEONG said within 50m , he did not specified the range which is how this is calculated, so dunno how accurate it is, but by most standard , it is usually 2/3 of the max range of the round.
That is why consistency are based on CEP or PER. -
The accuracy of SA depends on Target Acquisition,now by AN/TPQ-36 and 37 'Firefinder' Weapon Locating Radar .http://www.mindef.gov.sg/army/arti_specialities.htm
2.However.the radars looked not so effective in Iraq.For members of the(US) 1st Squadron, 3rd Armored Cavalry Regiment, the 20-year-old AN/TPQ-37 Firefinder Weapon Locating System was more of a problem than an asset, Defense News reports.The unit came under mortar fire 40 times in Iraq, but the system only detected rounds three times. The squadron suffered between 10 and 15 injuries from mortars."
.......The unit even fired its own mortars at the system in an attempt to work out the bugs. Even under the best circumstances, the radar detected only one out of five rounds.
fr http://www.defensetech.org/archives/cat_ammo_and_munitions.html
under MORTAR-FINDER BACKFIRES. -
chim sia... for non-arty guys, it's hard to understand...
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Precision firing is one of the cornerstones in Army Transformation."
fr http://www.mindef.gov.sg/cyberpioneer/backissues_dec03_01.htm
With targeting zeroed to measurements in mils (angular unit used in artillery, equal to 1/6400 of a complete revolution) rather than degrees, rounds targeted in conventional firing ranges land within 50m of targets.
"In our field artillery systems, the meticulousness in computation of firing data, the laying of guns, the preparation of the correct mix of ammunition; fired at the correct target at the correct time required, is what amounts to precision," said LTC Leong Kwok Lung, who is also Commander of 9th Division Artillery. -
Well, I am no arty guy too, I did some reading on it when I was wondering how inaccurate the Astros is.Originally posted by TVaddict:chim sia... for non-arty guys, it's hard to understand...
CEP is a is a simple measure of a weapon system's precision.
It is defined as the radius of a circle into which a missile ,bomb, or projectile will land at least half the time(50%).
Usually it is given in percentage of the range (distance from the weapon system to the target) for non-guided ballistics round.
I think my example is not so clear cut, so I will explain again, let's say the arty gun that I have is known to have a CEP(range) of 1% and if I am to fire my weapon to the target at 1000m away, say 100 rounds to the target,
So 1% x range of 1000m = 10m, i.e 1 Probable error(PE)
50 of the 100 rounds(50%) will land within 10m radius with the target as the centre of "circle". (If you refer back to the graph , you see 25% left of centre line and 25% right of the centre, add together you have 50%, that is what the graph is telling you)
So far if you understand what I have written so far, you should no problem to undertsand the rest.
So where are the rest of 50 rounds will land?
Based on the graph , you see two 16%(total 32%) , that is within 1~2 PE= 10~20m, so it mean 32 of the 100 rounds will land from 10~20m radius with the the target as the centre of "circle".
Likewise , you see two 7%(total 14%) , that is within 2~3 PE= 20~30m, so it mean 14 of the 100 rounds will land within 20~30m radius with the the target as the centre of "circle".
And so with the other two 2%( total 4%)..............
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If you still dun undertand ,I have drawn a simple picture above, you see four circles with one point as the centre of four circle above, that cebtre of the circle is the target point .Using the same example of CEP of 1 % and range 1000m:
The white portion there represent 1 Probable error(PE) ( which calculated by CEP mulitpy the range, for example 1% of 1000m=10m) and 50% of the round will land within that white portion.
The green portion there represent 1~2 Probable error(PE) (10~20m) which 32% of the round will land within that green portion.
The red portion there represent 2~3 Probable error(PE) (20~30m) which 32% of the round will land within that red portion.
Lastly ,the yellow portion there represent 3~4 Probable error(PE) (30~40m) which 4% of the round will land within that yellow portion.
Note:In reality, the circle above is more elliptical than a true circle, that is becos range errors is usuallly larger than azimuth errors. -
Want to hit a bull's eye from 30km?
Sat-Guided Cannon Ready to Blast is the answer!!
2.It is not new. Micro-Electro-Mechanical Systems, known as MEMS, Inertial Measuring Unit technology to guide to within 3.4 and 6.9 meters of a target located 20 kilometers from the firing site.
3.I wont talk about ST on this item for it will be deleted fast.Use ur brain. -
How accurate is our artillery in striking the same area if 2 rounds are fired under the same conditions?Same Wind speed, Same temperature etc. and also the firing piece is allowed to recoil to a complete stop before the next round is being fired? **All firing settings are kept the same**
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Gary 1910 answer your questionOriginally posted by SpecOps87:How accurate is our artillery in striking the same area if 2 rounds are fired under the same conditions?Same Wind speed, Same temperature etc. and also the firing piece is allowed to recoil to a complete stop before the next round is being fired? **All firing settings are kept the same** -
i read from a book that an arty gun can shoot a high angle shot, then quickly change to a low angle one, and still ensure that both rounds hit the same place at the same time.. issit true?
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True , it is called "time on target" and this could be accomplished by simply changing its fire data.Originally posted by mrblitzer21:i read from a book that an arty gun can shoot a high angle shot, then quickly change to a low angle one, and still ensure that both rounds hit the same place at the same time.. issit true?