Koty Posted July 24, 2022 Posted July 24, 2022 The RWR has 3 threat-type lights. Pulse-modulated, TWS and CW. These should light up, as per manual, to warn pilot of different type of threat however they do not follow the described functionality. Assuming the most simplified logic, TWS should light up when a TWS radar is looking at the aircraft and is considered primary threat. Pulse-modulated threat should light up for STT and CW for launched missile. (This logic is also partly wrong, but about that later.) Current behavior as tested with S-75, S-125, S-200 and Osa, as well as MiG-29 with R-27R: When the aircraft is engaged, Pulse-modulated threat comes up. Once missile is launched, RWR switches to the TWS threat. Even assuming the simplified logic as described in the manual, CW threat should light up instead of TWS. However, since we know the operation principle of these systems, it should be possible to assign threat type based on the actual system: S-75 (SA-2): This system operates in TWS regardless if missile is being guided or not. There is no "real" STT, even if game "pretends" there is. Depending on how the actual system works, it might be able to detect the missile up-link (later US RHAW's in Vietnam could do this) and switch threat type to CW to warn pilot regardless, even if it is still operating in TWS. S-125 (SA-3): Same principle of operation as above. S-200 (SA-5): Tracking radar operates exclusively in CW. There is no pulse-modulated mode. Osa: System works purely in pulse-modulated single-target track. As with SA-2/3, RWR might be able to detect the up-link for missile's command guidance depending on its capabilities. MiG-29: Pulse-modulated STT, switches to CW when missile is launched. 3 2
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