Imagine yourself to follow the situation: a duel between the Tigris and the IS-2 in immaculate (rovnenkaya area, a distance of up to 1000 m) and equal (quality rifle scopes, training gunners, full of ammunition, cannon with breech) criteria. With all this lay the 50% chance of defeat by the first shot, and we agree that both tanks will miss, but should certainly get a second shell, which in real life is often the case. What does happen next?
Charging IC-2 takes from the combat pack located in the rear recess of the tower, a 25-kg projectile and submit it to the trunk, then it shall be sent rammer forward so that the leading band tightly wedged first rifling of the barrel. Experienced charging shall be sent by the hand of the projectile, which speeds up the process. Then charging takes 15 kg sleeve with a charge to the right wall of the tower (we agreed that full ammo, and means after the first shot of the tower still remains one sleeve with a charge for the subsequent need to "dive" down, because the other sleeve housed in enclosure IP-2), introduces her into the trunk and shall be sent. With all of this gate is locked automatically. Charging report "Done" tank commander says — "fire", and the gunner, who during the charging time to adjust the sights, and presses the trigger is fired. In general, stop! With all of our criteria at the very trained by charging higher uttered will take at least 20 seconds, and the means, no matter how bitter it is to admit he did not have time to finish the loading process, because the 8-second mark in the tower of the IS-2 will fly 88-mm German shell, and on the 16th — the second! So Makar, the first blunder "Tiger" with a rate of private gun 6-8 rounds / min did not leave the IS-2 or the 1st chance at the second shot. Even if there were two of our tanks, the "Tiger", hitting the first IP-2, managed to give the first shot in the second to 4 seconds before response. In the end, it turns out that for the guaranteed destruction of the 1st "Tiger" second shot must have three tanks IS-2.
Some data is
A tank cannon Armor mm / tilt, c Penetration at a distance of 1000 m, mm / g Rate of fire, rds / min
IS-2, 122-mm D-25T frontal body — 120/60 ° head-tower — 150 / round 142/90 ° 2 … 3
Tiger, 88 mm KwK 36 frontal hull — 100/8 ° frontal towers — 190/0 ° 100/60 ° 6 … 8
From these data it follows that from 1000 m Tiger could not break through nor forehead body, much more so the tower IS-2. To do this, he needed to get closer to the minimum of 500 … 600 m I still need to take into account that this is true only for the IS-2 of early release because after the introduction on our tank "straightened nose" (see M. Baryatinsky, IS-2, History of creation), "tank gun KwK 36 L/56 not knocking the frontal armor of the IS-2 when firing at least some distance."
For our own tank develops reverse situation — at 1000 m confident he punched frontal hull armor of the Tiger. If the projectile hit the forehead of the tower of German tanks, even punching her, the gap is guaranteed damaged gun barrel and tiger remained naked.
Thus at 1000 m Tiger could destroy, but not to kill the IS-2. Thus, the German tank makes the second shot — a 88-mm projectile damage caterpillar. 3rd shot of Tiger coincides with the second IP-2. German shell knocks sight, 122-mm projectile IS-2 — breaks through the armor of the Tiger. German the tank is destroyed, the Russian — damaged. And this is very good for our tank scenario.
Imagine a different situation. German tank crew knows that he needs to get closer to the IS-2 at a distance of 500 … 600 m at an average speed of Tiger on the ground 25 … 30 km / h at 500 m preodolzhenie it will take about a minute. German on the go tank can not shoot, because the absence of stabilizer guns will reduce the possibility of getting to zero. IS-2 on the contrary, has the time for the work of 3 shots.
Tourist Office, at a similar meeting face to face Tiger was engage in a very profitable.