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An illustration of why sloped armour offers no weight benefit when protecting a certain frontal area. Comparing a vertical slab of armour (left) and a section of 45° sloped armour (right), the horizontal distance through the armour (black arrows) is the same, but the normal thickness of the sloped armour (green arrow) is less.
IDF Caterpillar D9 armoured bulldozer with slat armour (in addition to armour plates and bulletproof windows). The D9 armour deflected RPG rockets and even 9K11 Malyutka (AT-3 Sagger) ATGMs. Slat armour is designed to protect against anti-tank rocket and missile attacks, where the warhead is a shaped charge. The slats are spaced so that the ...
Basically it seems to me that the horizontal armour has been ignored, unless it is open space, which is not so good for armour. Taking a 45deg slope versus straight, and say a 30cm length/height with 10cm of armour. Right angled armour @ 10cm Area would be 30x10+(30-10)x10=300+200=500 sq cm Sloped armour at 45deg would be 42.4x10 = 424 sq cm
Sloped armour on the front of Soviet T-54 tank, here cut open to demonstrate the increase in effective thickness. Simply sloping a piece of armour inherently increases its effectiveness by increasing the distance a projectile must travel to penetrate it. It also increases the odds that a projectile will ricochet off the target without causing ...
It was determined by a study of a possible Chobham-armour protected MICV that a completely new design using only Chobham armour for the most vulnerable front and side sectors (thus without an underlying steel main armour) could be 10% lighter for the same level of protection against KE-ammunition, but to limit costs it was decided to base the ...
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Though spaced armour appeared in some tanks like the Leopard 1 and the Merkava, the armour scheme was not considered to offer sufficiently better protection against armour-piercing projectiles to justify the increased complication they posed, and thus their use on post-war tanks was limited and eventually superseded by more effective composite ...
The JLTV armor is modular with an A-kit and a B-kit. The A-kit, which is installed during production, is primarily fixings for add-on armor but can include small amounts of armor fitted in difficult-to-reach areas. The B-kit is essentially the add-on armor, this added when required and as a modular add-on.