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Main Gun Ammo - Revisited


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#581 Mr King

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Posted 29 June 2015 - 1642 PM

Vpybx3M.jpg



#582 bojan

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Posted 29 June 2015 - 2101 PM

Smoke, HEAT (Obus G) and APFSDS. No HE?



#583 Froggy

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Posted 30 June 2015 - 0043 AM

The 5 left rounds are HE, then 4 APFSDS.
2 in front are smoke. And the guy holds an HEAT.
Heat is not Obus G, but fin stabilised.

Edited by Froggy, 30 June 2015 - 0046 AM.


#584 Mr King

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Posted 30 June 2015 - 0303 AM

Thanks Froggy!



#585 bojan

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Posted 30 June 2015 - 0611 AM

Heat is not Obus G, but fin stabilised.

Interesting that French kept old ogival shape of HEAT when most went to squared-off front with stand-off probe... When was fin-stab HEAT introduced and replaced Obus G?



#586 DKTanker

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Posted 30 June 2015 - 0652 AM

Interesting that French kept old ogival shape of HEAT when most went to squared-off front with stand-off probe... When was fin-stab HEAT introduced and replaced Obus G?

I believe that particular model of HEAT utilizes Pop out fins. As such it can retain the ogive profile at the expense of complexity.

#587 Sovngard

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Posted 30 June 2015 - 0717 AM

http://preprod.nexte...canons-amx-10rc



#588 bojan

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Posted 30 June 2015 - 0720 AM

 

I believe that particular model of HEAT utilizes Pop out fins. As such it can retain the ogive profile at the expense of complexity.

 

Yes, like a Soviet 100mm BK-5/5M and it's clones, but there must have been a reason for most countries switching to blocky shape (including Soviets) and French keeping ogival shape.



#589 Froggy

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Posted 30 June 2015 - 1430 PM


Heat is not Obus G, but fin stabilised.

Interesting that French kept old ogival shape of HEAT when most went to squared-off front with stand-off probe... When was fin-stab HEAT introduced and replaced Obus G?
Obus-G was only available for 105 OTAN gun.

#590 bojan

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Posted 30 June 2015 - 1619 PM

So only AMX-30 used it? Was it replaced in service, or did it soldier on until the end of AMX-30 use? 


Edited by bojan, 30 June 2015 - 1620 PM.


#591 Froggy

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Posted 01 July 2015 - 1404 PM

The later.

#592 Wiedzmin

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Posted 03 July 2015 - 1119 AM

report-on-demo-of-centurions-in-the-uk-1

report-on-demo-of-centurions-in-the-uk-1

Centurion MK.9 105mm APDS penetrated 240mm/90° from 1000 meters 

Centurion MK.7 84mm APDS penetrated 240mm/90° from 500 meters 

 

Centurion MK.9 105mm APDS penetrated 122mm/30° from 500 meters 

Centurion MK.7 84mm APDS penetrated 122mm/30° from 500 meters 



#593 Gorka L. Martinez-Mezo

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Posted 03 July 2015 - 1324 PM

Obus-G was only available for 105 OTAN gun.

 

 

IIRC, the French AMX-13 used a 90mm version of the Obus G with slightly reduced penetration (360mm for the 105mm version and 300mm for the 90mm version)



#594 Simon Tan

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Posted 05 July 2015 - 2136 PM

The CN 105-57 also used Obus G.The flat profile HEAT was a specific response to 90mm M339 HEAT failure to trigger and form on oblique inpact.

#595 Gorka L. Martinez-Mezo

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Posted 07 July 2015 - 0110 AM

The CN 105-57 also used Obus G.The flat profile HEAT was a specific response to 90mm M339 HEAT failure to trigger and form on oblique inpact.

 

The shell itself was the same as in the AMX-30 OCC-105; the case and projection charge were smaller.



#596 Mike-L7

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Posted 07 July 2015 - 1256 PM

Whoa, get the ammo of the floor guys, wtf?



#597 Wiedzmin

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Posted 13 July 2015 - 1213 PM

http://tanks.mod16.o...st-chain-armor/

 

chain vs HEAT



#598 Gorka L. Martinez-Mezo

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Posted 14 July 2015 - 0408 AM

 

Most interesting; any known relationship to Israel's chain armor on Merkava turret?



#599 bojan

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Posted 14 July 2015 - 0959 AM

I bet 5$ they knew about results.



#600 renhanxue

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Posted 14 July 2015 - 1147 AM

I bet 5$ they knew about results.

Likely. The Swedish report also claims the original idea came from the US.

 

 

Centurion MK.9 105mm APDS penetrated 240mm/90° from 1000 meters 

Centurion MK.7 84mm APDS penetrated 240mm/90° from 500 meters 

 

Centurion MK.9 105mm APDS penetrated 122mm/30° from 500 meters 

Centurion MK.7 84mm APDS penetrated 122mm/30° from 500 meters 

 

Not quite. The report says:

 

Centurion 7/8,4 cm APDS against 240 mm armor plate, 90°, 500m: penetration of both armor plate and witness plate. Permission to photograph was revoked after this shot.

 

Centurion 7/8,4 cm APDS against 122mm armor plate, 30°, 500m: no penetration, but the armor plate had a dent on the rear side.

 

Centurion 9/10,5 cm APDS against 122mm armor plate, 30°, 500m: powerful penetration of the armor plate, witness plate completely torn apart and remains found five meters behind the armor plate.

 

Conqueror/12 cm HESH (V0 ca 650 m/s) against 122 mm armo plate, 30°, 500m: on the front of the armor plate, dent with a diameter of about 270mm and 2-10mm deep. On the rear of the plate, a single? spalling with a diameter of about 270mm and about 20mm deep. Witness plate had a hole 35x25 cm plus 5 minor holes about 0.5-1 cm2. Spalled piece of armor plate could not be located.

 

The photos on the second page posted show the results from the first shot (8,4 cm APDS against 240mm vertical plate).


Edited by renhanxue, 14 July 2015 - 1148 AM.





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