The frontal arc of the turret is a modular design so that when more advanced composite armor is developed, it can readily replace older composite armor.
12.
The armor plating provides protection against bullets up to 14.5 mm caliber within the frontal arc and against bullets up to 7.62 mm caliber fired at any point on the turret.
13.
The Stryker's hull is constructed from high-hardness steel which offers a basic level of protection against 14.5 mm rounds on the frontal arc, and all-around protection against 7.62 mm ball ammunition.
14.
The hull of the Saurer 4K 4FA series armoured personnel carrier is made of all-welded steel armour and is immune to penetration from 20 mm armour-piercing projectiles over its frontal arc.
15.
Besides this, hull sides protection are optimized to provide adequate protection within the angles of safe manouvering, which is 60 degree frontal arc of vehicle " . talk ) 20 : 42, 10 July 2016 ( UTC)
16.
The vehicle needed to protect the crew from . 50 cal machinegun fire and 20 23 mm caliber autocannons across the frontal arc, as well as from light shell fragments at distances between 500 m and 800 m.
17.
The BMP-1's steeply sloped frontal armor can withstand artillery shell fragments, small arms fire and existing . 50 caliber ( 12.7 mm ) heavy machine gun AP and API rounds over 60?of the frontal arc from all distances.
18.
Designs exist for different APC vehicles ( armoured personnel carrier ) and IFV versions ( infantry fighting vehicle ), communications versions, ambulances and different fire support versions, armed with large caliber TNT . The AMV has protection levels up to 30 mm APFSDS frontal arc.
19.
It was very hard to isolate or outflank and destroy a tercio by maneuver due to its great depth and distribution of firepower to all sides ( as opposed to the maximization of combat power in the frontal arc as adopted by later formations ).
20.
The armor was required to protect the crew and passengers from light shell fragments as well as . 50 cal armor-piercing bullets and 20 23 mm caliber autocannons across the frontal arc at distances between 500 m and 800 m ( the distance of infantrymen dismounting onto the battlefield during an attack ).
