Drozd/ERA

[Vespers War]

I found another ERA system that would be period-appropriate for T2K, which is Royal Ordnance's ROMOR-A. It first appeared on a Pakistani Type 59 tank at BAEE in 1984. During the First Gulf War, it saw limited service on the lower glacis of Challenger tanks and on the turrets of Centurion AVREs. It was also fitted to Centauro armored cars operating in Somalia during the UN peacekeeping mission there.

ROMOR-A adds 60 points to AV vs. HEAT only.

I still haven't been able to find adequate information on Super Blazer, which is the main ERA from the era of the Twilight War that remains a lacuna.

[Vespers War]

I have a rough estimate for Super Blazer based on the M-55S protection claims, using numbers from Paul's site for the various armors and weapons cited.

The base tank is a T-55, with HF 60 and HS 12 (the ERA covers the glacis and front side of the hull, plus the turret; I'm using the hull numbers because that's what the discussion about the actual vehicle discusses).

According to Slovenia when the tanks were upgraded, they were protected from TOW over a 30 degree frontal arc, HOT over a 40 degree arc, and RPG-7 strikes over a 50 degree arc (the last of which probably describes the entire area protected by ERA).

Depending on HEAT warhead, the RPG-7 has Pen 51C to 140C, HOT is 137C to 198C, and TOW is 104C to 194C.

In order to be a little conservative in case of hyperbole and taking into account that other descriptions say Super Blazer also has some protective effect against KE, and based on the described weight of the system, I'd simply use Kontakt-5's stats (100 AV vs. HEAT, 60 vs. KE), with a similar weight since the limited array on the M-55S is said to be 2 tonnes, while Kontakt-5 over the entire front and side of a hull plus turret is 2.8 tonnes.

tl;dr - use Kontakt-5 stats for Super Blazer.

[Vespers War]

OK, I've done a little more poking around and have some guesses on slightly less well-known systems.

Poland developed ERAWA-1 and ERAWA-2 in the early 1990s, fitting it onto T-72s and T-72 derivatives like the PT-91. For the PT-91, the original layout had ERAWA-1 on the turret, hull front, and hull sides. Later layouts used a mix of the two types.

ERAWA-1 provides AV 60 vs HEAT.
ERAWA-2 provides AV 100 vs HEAT and AV 35 vs KE.


One that had me confused for a while was Czech Republic's Dyna, because the numbers were incredibly high. Then I found that they had reported the overall performance of blocks mounted on a T-72, both the ERA's effect and the underlying composite armor. So, I was (eventually) able to take the reported numbers and back out the amount of the glacis plate. Dyna is used on the T-72M4CZ.

Dyna provides AV 130 vs HEAT and AV 35 vs KE.


Finally, and somewhat relevantly for current events, Ukraine has Nizh (knife, also known by its Russian name of Nozh) and Duplet ERAs. The numbers for these were calculated by taking a manufacturer's catalog page and averaging the effectiveness across the various HE and KE penetrators they listed. Nizh is used on the T-64 Bulat and Duplet on the T-84 Oplot.

Nizh provides AV 70 vs HEAT and AV 25 vs KE.
Duplet provides AV 90 vs HEAT and AV 30 vs KE.

Duplet can be fitted in up to three layers. I did not see estimates of the layering effectiveness, so to have some sort of rule that works within the game, each additional layer provides 50% more protection. A double layer is AV 135 vs HEAT and AV 45 vs KE and a triple layer is AV 180 vs HEAT and AV 60 vs KE. The T-84 Oplot has three layers on the hull sides and turret and two layers on the glacis.

All of these are likely somewhat optimistic numbers, but I feel like that tends to be somewhat true in general for technical specifications in T2K.