This book describes the difference of these two types of missiles (3M9M1, 3M9M3)... SA-6_Gainful_in_Detail_-_Soviet_Anti-aircraft_Mobile_Rocket_System
Last edited by Hpasp; 10/15/1303:17 PM.
Hpasp Free SAM Simulator, "Realistic to the Switch" (U-2 over Sverdlovsk, B-52's over Hanoi, F-4 Phantoms over the Sinai, F-16's and the F-117A Stealth bomber over the Balkans.) http://sites.google.com/site/samsimulator1972/home