Viktor said:
Have you any information about Relikt ERA. I have heard of it only recently and Im quite astonish by its ability to take out tandem warhead. How well Relikt stands against kinetic penetrators?
Relikt is 5 time better then K-5 against APFSDS. However on real tank ERA - is only the part of whole armor, then the effect of putting Relikt instead K-5 apply will naturally be diminished slightly. With K-5 its effect on the real tank will multiply the capability of a round by coeff 0.81 (APFSDS)-0.5(cummulative), with Relikt - by 0.65 (APFSDS) -0.47 (Cummulative). For example, when M829A2 penetrating capability for steel is 750 mm , it will penetrate only 0.65x750=487mm of T-72 armor with Relikt ERA. Source: NII Stali article
http://www.niistali.ru/article/article_04.htm (Russian only, sorry)
From the same site:
"At RUSSIAN EXPO ARMS 2006 exhibition held in Nizhniy Tagil on July 11-15 a new multi-purpose ERA package made by NII Stali was demonstrated on an upgraded T-72B tank (“Sling-shot”).
At RUSSIAN EXPO ARMS 2006 exhibition held in Nizhniy Tagil on July 11-15 a new multi-purpose ERA package made by NII Stali was demonstrated on an upgraded T-72B tank (“Sling-shot”).
The new ERA package is almost twice as effective as Contact-V ERA system.
It is called multi-purpose not only because it defeats both HEAT-warhead and KE ammunition, but also because it is made as a number of separate modules, which makes it possible to fit the package to any tank types using standard modules and attachment fittings."
also:
"INTEGRATED MODULAR ERA SYSTEM FOR T-72 M1 MBT
The kit consists of a glacis plate ERA module, quickly removable ERA boxes fitted to the turret roof and sides and on the hull sides; and rubber-fabric screens for the hull sides.
The kit ensures increase of counter-APFSDS and counter-HEAT protection level of the MBT in the fire angles of ±20° (the hull) and ±35° (the turret).
Counter-APFSDS protection increases by factors of 1.5-1.6;
Counter-HEAT protection increases by a factor of 2.0;
Coverage of the turret and hull surface: 60-68%;
Weight of the kit: 2,300 kgs.
The ERA tiles do not detonate when hit by small arms bullets (up to 12.7mm), fragments of 125mm HE rounds or when exposed to incendiary mixtures (napalm).
The ERA kit can be installed and repaired by the Army field repair groups."
http://www.niistali.ru/pr_secure/t72_en.htm
eckherl said:
Was the upgrades due to the war in chechnya.
- It is the second modernisation program after the 2nd ChW. It includes new FCS with TV-IR gunner-commander site subsystem, RELIKT ERA, anticummulative grids, 'Nakidka' kit for IR emision and radar observability reduce, the remote controlled new highly improved mashingun, new stabilisation system for the MG allowing fire on the move (for 'classic T-72's it didnt exist before), tank launched ATGMs compatibility, new highly improved and very economic engine for T-72 (V99 with 1250 hp instead of V46 with 780 hp) of the same dimension and the new tracks from T-90 (for T-72 however). The modernised T-80 however is remain with its current powerplant - 1000 gas-turbine engine and with its original trachs. The contemporal program (Rogatka) - partially fits also the russian T-80 fleet. Before Rogatka was another modernisation with K-5 integrated ERA like on the T-90 (under the name "T-72M1" - for T-72 only):