BlackPixxel Posted October 20, 2023 Share Posted October 20, 2023 With the 2.9 update there were changes to Aim-9 and R-13 missiles. R-13M1 and Aim-9P-5 are very similar missiles in terms of kinematics. They have a similar shape, and the impulse per weight is also quite close. R-13M1: 66.15 kg*s/kg Aim-9P-5: 69.60 kg*s/kg Yet that Aim-9 reaches significantly more speed, while the R-13 also slows down much quicker. Following graph shows R-13M1 (incorrectly labeled as R-3) and Aim-9P-5 when launched under same conditions: I suspect that something is not right regarding the drag. 2 1 Link to comment Share on other sites More sharing options...
DSplayer Posted October 21, 2023 Share Posted October 21, 2023 I will say that the drag and motor performance of the R-13M1 is different compared to the AIM-9Ps. I suspect they did make the R-3s managed by ED but the R-3s/R-13s still retain their old qualities. I have previously reported on the Mag 3 bug reporter that their missiles perform significantly differently compared to their ED counterparts. I hope an overhaul comes soon and hopefully that will come with new 3D models. -Tinkerer, Certified F-14 and AIM-54 Nut | Discord: @dsplayer Setup: i7-8700k, GTX 1080 Ti, 32GB 3066Mhz, Lots of Storage, Saitek/Logitech X56 HOTAS, TrackIR + TrackClipPro Modules: F-14, F/A-18, JF-17, F-16C, Mirage 2000C, FC3, F-5E, Mi-24P, AJS-37, AV-8B, A-10C II, AH-64D, MiG-21bis, F-86F, MiG-19P, P-51D, Mirage F1, L-39, C-101, SA342M, Ka-50 III, Supercarrier, F-15E Maps: Caucasus, Marianas, South Atlantic, Persian Gulf, Syria, Nevada Mods I've Made: F-14 Factory Clean Cockpit Mod | Modern F-14 Weapons Mod | Iranian F-14 Weapons Pack | F-14B Nozzle Percentage Mod + Label Fix | AIM-23 Hawk Mod for F-14 Link to comment Share on other sites More sharing options...
ED Team Маэстро Posted October 25, 2023 ED Team Share Posted October 25, 2023 On 10/20/2023 at 10:39 PM, BlackPixxel said: With the 2.9 update there were changes to Aim-9 and R-13 missiles. R-13M1 and Aim-9P-5 are very similar missiles in terms of kinematics. They have a similar shape, and the impulse per weight is also quite close. R-13M1: 66.15 kg*s/kg Aim-9P-5: 69.60 kg*s/kg Yet that Aim-9 reaches significantly more speed, while the R-13 also slows down much quicker. Following graph shows R-13M1 (incorrectly labeled as R-3) and Aim-9P-5 when launched under same conditions: I suspect that something is not right regarding the drag. We will investigate. Looks like R-13 drag issue. 1 1 YouTube Channel Link to comment Share on other sites More sharing options...
BlackPixxel Posted October 25, 2023 Author Share Posted October 25, 2023 1 hour ago, Маэстро said: We will investigate. Looks like R-13 drag issue. Thank you! Link to comment Share on other sites More sharing options...
MysteriousHonza Posted October 25, 2023 Share Posted October 25, 2023 On 10/21/2023 at 10:55 AM, DSplayer said: I will say that the drag and motor performance of the R-13M1 is different compared to the AIM-9Ps. I suspect they did make the R-3s managed by ED but the R-3s/R-13s still retain their old qualities. I have previously reported on the Mag 3 bug reporter that their missiles perform significantly differently compared to their ED counterparts. I hope an overhaul comes soon and hopefully that will come with new 3D models. All mig21 aa missiles besides r55 were changed in 2.9. R13Ms too, their engine, seeker parameters and i think drag coefs too. Link to comment Share on other sites More sharing options...
BlackPixxel Posted December 20, 2023 Author Share Posted December 20, 2023 Issue is now resolved, the drag of R-13M got corrected. 2 Link to comment Share on other sites More sharing options...
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