Sideburns Posted July 21, 2020 Share Posted July 21, 2020 (edited) It was noted on the cold war server by Lazzyseal aka P61 that the Rb24j was over-performing, pulling 15g turns close to aim9l performance. Looking into the issue it appears the coefficient of lift values for the Rb24j are not correct, they are superior to the Aim9p and Aim9p5 whereas we believe they should be the same? Relevant files \Program Files\Eagle Dynamics\DCS World\CoreMods\aircraft\AircraftWeaponPack\aim9_family.lua contains the variables for the aim9 missiles \Program Files\Eagle Dynamics\DCS World\CoreMods\aircraft\AJS37\Entry\Weapons.lua contains the Viggen Rb24/Rb24j/Rb74 variable definitions If you look in these files the sensor, thrust, drag and Cl (Coefficient Lift) values (cy_k0, cy_k1) are defined, the Rb24j has some generous Cl values that put it above the aim9p5 (double the Cl) it should probably be the same as the aim9p series. Thrust, sensor and drag values otherwise seem sensible for the Rb series. Sensor is superior to aim9p but inferior to aim9p5. Thrust is about the same. Appears to have been an issue since at least 2018. Suggested fix: Amend the Rb24j cy_k0 and cy_k1 values to match the other aim9p missiles. (0.5 and 0.4 instead of 0.9 and 0.8 ) Edit: Might also be worth checking with Heatblur to see if this was a deliberate design choice, i.e. the Swedish air force had a special Aim9p3? Edited July 21, 2020 by Sideburns Ryzen 5800x@5Ghz | 96gb DDR4 3200Mhz | Asus Rx6800xt TUF OC | 500Gb OS SSD + 1TB Gaming SSD | Asus VG27AQ | Trackhat clip | VPC WarBRD base | Thrustmaster stick and throttle (Deltasim minijoystick mod). F14 | F16 | AJS37 | F5 | Av8b | FC3 | Mig21 | FW190D9 | Huey Been playing DCS from Flanker 2.0 to present Link to comment Share on other sites More sharing options...
Jediteo Posted August 9, 2020 Share Posted August 9, 2020 The Rb24J has been updated to be in sync with the AIM-9P parameters, should be in the next patch. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
Sideburns Posted August 9, 2020 Author Share Posted August 9, 2020 Thank you for paying attention to this inaccuracy. It is particularly important for the "cold war" restricted equipment type servers. Ryzen 5800x@5Ghz | 96gb DDR4 3200Mhz | Asus Rx6800xt TUF OC | 500Gb OS SSD + 1TB Gaming SSD | Asus VG27AQ | Trackhat clip | VPC WarBRD base | Thrustmaster stick and throttle (Deltasim minijoystick mod). F14 | F16 | AJS37 | F5 | Av8b | FC3 | Mig21 | FW190D9 | Huey Been playing DCS from Flanker 2.0 to present Link to comment Share on other sites More sharing options...
Sideburns Posted August 19, 2020 Author Share Posted August 19, 2020 Looks like it has unfortunately not made it into DCS 2.5.6.53756 :( Ryzen 5800x@5Ghz | 96gb DDR4 3200Mhz | Asus Rx6800xt TUF OC | 500Gb OS SSD + 1TB Gaming SSD | Asus VG27AQ | Trackhat clip | VPC WarBRD base | Thrustmaster stick and throttle (Deltasim minijoystick mod). F14 | F16 | AJS37 | F5 | Av8b | FC3 | Mig21 | FW190D9 | Huey Been playing DCS from Flanker 2.0 to present Link to comment Share on other sites More sharing options...
Recommended Posts