It is not missing, consult the Thai manual:


Renders from manufacturer of new Nizh/Duplet also doesn’t indicate that there should be ERA.
It is not missing, consult the Thai manual:


Renders from manufacturer of new Nizh/Duplet also doesn’t indicate that there should be ERA.
It’s not about effectiveness around the edges, there is no such mechanic in the game. It’s about physical space that ERA occupies.
Ah fair enough, I stand corrected. Thanks for the info
The trapezoidal geometry of the ribs is also indicated by early versions of integrated “Nizh” modules (source: АНАЛИЗ ЖИВУЧЕСТИ ДИНАМИЧЕСКОЙ ЗАЩИТЫ ОТЕЧЕСТВЕННЫХ ТАНКОВ
Авторы Костин Ю.Н., Даньшин Ю.А., Дураченко В.В., Горожанин Ю.Г., Афонский П.В.
Механіка та машинобудування, 96 2014, № 1)

and some photo taken at some point of develompment

Tho as can be seen on the photos from Oplot production the trapezoidal form is barely there and is more like stepped with distinct thickness change.