The tank's armor is sloped the increase the thickness and not so much as to deflect the round. Sorry but I am at work and do not have a picture I can post. For example, if you take a plate 1/2 inch thick and place it on a table at a 90 degree angle, a round will have to punch through 1/2 inches. If you change to angle to 60 degrees the round will have to pass through more than 1/2 inch. This wil help
Sloped armour - Wikipedia, the free encyclopedia
I am an old Cav Scout. The army has been working on stealth tank designs since the early 1990's. They are working on using digital cameras to project images on the sides of AFV to mask it from gunners. They are also using rotorwing technology to help with engine noise and heat signatures. People have been talking about the death of armour since WWI. Technology always changes the advantages between, armour, fire power and mobility. Right now the attack helo is on top. Armour will be back.
DBII