Editing Almaz (section)

===Unflown Almaz space stations===
====OPS-4====
The next Almaz station, OPS-4, was to be the first station launched with a three panel [[Mech-A]] [[synthetic-aperture radar]] and a crewed reusable  Return Vehicle, but the VA was replaced by a second TKS docking port. This station's [[Shchit-1]] 23&nbsp;mm defense [[autocannon]] was also to be replaced with an advanced Shchit-2 [[space weapon|space-to-space]] cannon. The Shchit-2 was reported to be a two projectile system, although no photographs of it have ever been published and it does not appear that this system was ever installed on the station. OPS-4 was grounded when the Almaz crewed program was cancelled.<ref>{{Cite web |title=OPS-4 space station |url=https://www.russianspaceweb.com/almaz_ops4.html |access-date=2025-04-03 |website=www.russianspaceweb.com}}</ref>

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