Yak-28B – Technical Overview
Radar RBP-3 “Rubin”: The Yak-28B was equipped with the RBP-3 radar targeting system, which enabled automatic bomb release calculations (CCRP). This radar was located in the belly radome and was linked to the autopilot for automated attacks.
Bomb Release System: The aircraft utilized a CCRP (Continuously Computed Release Point) system, meaning the onboard computer continuously calculated the optimal bomb release point based on radar and autopilot data.
Optical Targeting Device: In addition to the RBP-3 radar, the Yak-28B was fitted with the OPB-115 optical bombsight for manual bomb release, allowing the pilot to drop bombs even without the automatic system.
Web resource
https://www.airvectors.net/avyak25.html?utm_source=chatgpt.com
Please, someone please provide some period manuals or a handbook where it is written exactly so I can present it to Gaijn.