Giat FAMAS G2 Questions in INF

[Snakeye]

I think I'll start writing the names of the ones I want to answer to..

Fur:
The long post was for striderteen; looks like the both of us have a discussion on the BMP3, and since the post about the BMP3 was quite long, and I only found your post later..

The search for fovanov+tanks produced 1 dead link BTW..

I'd still like to know under which circumstances a AT3C can hit with 90% probability -> BMP1 moving or stationary, size and speed of the target, range etc..

Snakeye

 

[The_Fur]

http://members.dencity.com/fofanov/Tanks/EQP/kontakt5.html

 

[Antedeluge]

AAAAARGH!!! This is a FA-MAS thread!!!

Take your IFVs and play somewhere else!

 

[Snakeye]

What a nice weekend at home..

Fur:
Thanks for the link, but it doesn't convince me a ERA protected BMP3 will withstand APFSDS rounds. Their strength is only reduced by 250mm penetration potential. While HEAT warheads should be defeated(600mm less might not stop an 'ideal' TOW2, but IRL only few things are ideal..). In fact the armor package is intented for MBTs and adds 3t to the vehicle - even if they are available for BMP3, it would add it's weight to M2A1 level of about 22t.

Snakeye

 

[The_Fur]

The thing is the puny bradleys main gun will have a snowballs chance in hell of even penetrating the HeavyERA, let alone the bmp's armor underneath

 

[Snakeye]

You shouldn't judge a gun by it's caliber alone. The M242 uses the M919 DU APDS; though penetration is of course classified, both BMP1 and BMP2 armor were easily penetrated by it. Apart from that it pierces armor better than the Russian 30mm AC used in BMP2 and BMP3(as co-ax).

I also didn't find any clue the BMP3 has heavy ERA. The article only mentiones MBTs..

Snakeye

 

[The_Fur]

evidence for the penetration of the Bradleys main gun?

 

[Snakeye]

OK, this is very, very hypotetical, but here we go:
Penetration of the M242 Bushmaster using M791 Ammunition(the old one, the new M919 is said to have even better penetration ability) is taken from: http://www.atk.com/defense/descriptions/products/munitioncards/m791.htm

Penetration (typical): 25mm RHA @ 60º is 1300m

other sources say 27mm RHA, but 25 seems to be on the safer side. Also notice this is at 60°. At right angle(ideal) penetration is better.
The M919s penetration is classified, but some sources say 30mm@60° and 1500m, but that's just estimation..

Now according to www.fas.org the BMP1 has 23mm turret and 19mm hull maximum armor -> M242 penetrates even with M791 round.
The BMP2 is said to be at 23-33mm maximum, which may or may not be penetrated, but remember this is maximum, a side shot will pierce the armor with M791, but the M919 might even penetrate from front(since it's ratings are classified who knows..)
BMP3 maximum armor is 30-35mm, which is once again not penetrated by the M791, but maybe by the M919; side armor is usually weaker and therefore will probably be penetrated by the M242 APDS rounds.

This is only true for the NAKED vehicle without add-on passive or reactive armor! Additional armor will decrease the probability of penetration, but adds weight.
Add-on passive armor as well as ERA(note: still no clue for heavy ERA) is available for BMP2(ERA only for BMP2D) and BMP3.

Since half of the information on this topic is classified, that's the best I could find, but it proves the M2's main gun defeats both BMP1 and BMP2 plus can penetrate BMP3s side armor unless add-on armor is present.

According to: http://club.guns.ru/wwwboard/message/eng/810.html
The 30mm 2A72 gun of the BMP2 and BMP3 is not weaker than the M242, but more or less equal(compared to M791 rounds - M919 might be better..).

The AP-T
(BT) projectile weighs 400 g, contains 127 g of explosive
and is stated to be able to penetrate up to 18 mm of armour
plate set at 60° at a range of 1,000 m (25 mm at 750 m).
Penetration at the maximum effective range of 1,500 m is 15
mm. There is also an APDS-T variant with a muzzle velocity
of 1,120 m/s and an armour penetration capability of 25 mm
of armour plate set at 60° at a range of 1,500 m.

That's all I could find until now..

Snakeye