Northstar98 Posted May 23, 2024 Posted May 23, 2024 (edited) Hi everyone, Just posing a question (not sure if it's a bug or not, or whether it's real life behaviour) but is the AGM-45A Shrike supposed to roll the way it does in-game? Kinda like how I'd expect a Paveway I or II to behave. I couldn't find anything about it online and the little snippits of test footage don't appear to show any kind of rolling motion - though there it could be that the footage is taken over such a short time interval that any kind of rolling motion would be difficult to determine, the resolution obviously isn't the best either. AI_F-4E_AGM-45A_test.trk Edited May 23, 2024 by Northstar98 formatting 2 Modules I own: F-14A/B, F-4E, Mi-24P, AJS 37, AV-8B N/A, F-5E-3, MiG-21bis, F-16CM, F/A-18C, Supercarrier, Mi-8MTV2, UH-1H, Mirage 2000C, FC3, MiG-15bis, Ka-50, A-10C (+ A-10C II), P-47D, P-51D, C-101, Yak-52, WWII Assets, CA, NS430, Hawk. Terrains I own: South Atlantic, Syria, The Channel, SoH/PG, Marianas. System: GIGABYTE B650 AORUS ELITE AX, AMD Ryzen 5 7600, Corsair Vengeance DDR5-5200 32 GB, NVIDIA GeForce RTX 4070S FE, Western Digital Black SN850X 1 TB (DCS dedicated) & 2 TB NVMe SSDs, Corsair RM850X 850 W, NZXT H7 Flow, MSI G274CV. Peripherals: VKB Gunfighter Mk.II w. MCG Pro, MFG Crosswind V3 Graphite, Logitech Extreme 3D Pro.
Solution IronMike Posted May 23, 2024 Solution Posted May 23, 2024 Yes, that is correct. 1 1 Heatblur Simulations Please feel free to contact me anytime, either via PM here, on the forums, or via email through the contact form on our homepage. http://www.heatblur.com/ https://www.facebook.com/heatblur/
Northstar98 Posted May 23, 2024 Author Posted May 23, 2024 24 minutes ago, IronMike said: Yes, that is correct. Interesting, thank you! 1 Modules I own: F-14A/B, F-4E, Mi-24P, AJS 37, AV-8B N/A, F-5E-3, MiG-21bis, F-16CM, F/A-18C, Supercarrier, Mi-8MTV2, UH-1H, Mirage 2000C, FC3, MiG-15bis, Ka-50, A-10C (+ A-10C II), P-47D, P-51D, C-101, Yak-52, WWII Assets, CA, NS430, Hawk. Terrains I own: South Atlantic, Syria, The Channel, SoH/PG, Marianas. System: GIGABYTE B650 AORUS ELITE AX, AMD Ryzen 5 7600, Corsair Vengeance DDR5-5200 32 GB, NVIDIA GeForce RTX 4070S FE, Western Digital Black SN850X 1 TB (DCS dedicated) & 2 TB NVMe SSDs, Corsair RM850X 850 W, NZXT H7 Flow, MSI G274CV. Peripherals: VKB Gunfighter Mk.II w. MCG Pro, MFG Crosswind V3 Graphite, Logitech Extreme 3D Pro.
Blaze1 Posted May 24, 2024 Posted May 24, 2024 I can't comment about the Shrike rolling, however it did employ "bang bang" guidance which would cause it to slip sideways from left to right. Because the centre of lift was located at the missiles CoG, the missile had a tendency to slide sideways rather than change heading. 2
Northstar98 Posted May 24, 2024 Author Posted May 24, 2024 (edited) 5 hours ago, Blaze1 said: I can't comment about the Shrike rolling, however it did employ "bang bang" guidance which would cause it to slip sideways from left to right. Because the centre of lift was located at the missiles CoG, the missile had a tendency to slide sideways rather than change heading. That probably explains the rolling to try and stabilise the missile in-flight. AFAIK the Paveway II is supposed to do exactly the same thing (but doesn't appear to do so in DCS). The Paveway III is also supposed to roll (though in this video, the rolling appears to briefly stop when the bomb is attempting to climb) but AFAIK that uses proportional/PID control as opposed to bang-bang, with proportional navigation (though again, it doesn't roll in DCS). Edited May 24, 2024 by Northstar98 Modules I own: F-14A/B, F-4E, Mi-24P, AJS 37, AV-8B N/A, F-5E-3, MiG-21bis, F-16CM, F/A-18C, Supercarrier, Mi-8MTV2, UH-1H, Mirage 2000C, FC3, MiG-15bis, Ka-50, A-10C (+ A-10C II), P-47D, P-51D, C-101, Yak-52, WWII Assets, CA, NS430, Hawk. Terrains I own: South Atlantic, Syria, The Channel, SoH/PG, Marianas. System: GIGABYTE B650 AORUS ELITE AX, AMD Ryzen 5 7600, Corsair Vengeance DDR5-5200 32 GB, NVIDIA GeForce RTX 4070S FE, Western Digital Black SN850X 1 TB (DCS dedicated) & 2 TB NVMe SSDs, Corsair RM850X 850 W, NZXT H7 Flow, MSI G274CV. Peripherals: VKB Gunfighter Mk.II w. MCG Pro, MFG Crosswind V3 Graphite, Logitech Extreme 3D Pro.
Blaze1 Posted May 25, 2024 Posted May 25, 2024 On 5/24/2024 at 8:29 AM, Northstar98 said: That probably explains the rolling to try and stabilise the missile in-flight. AFAIK the Paveway II is supposed to do exactly the same thing (but doesn't appear to do so in DCS). The Paveway III is also supposed to roll (though in this video, the rolling appears to briefly stop when the bomb is attempting to climb) but AFAIK that uses proportional/PID control as opposed to bang-bang, with proportional navigation (though again, it doesn't roll in DCS). I don't recall the PWII having the characteristic of rolling in-flight so I'll need to check on that.
Northstar98 Posted May 25, 2024 Author Posted May 25, 2024 Just now, Blaze1 said: I don't recall the PWII having the characteristic of rolling in-flight so I'll need to check on that. I might be misremembering, I have seen drop footage which appears to show the weapon making a roll but they're quite brief, which makes it difficult to determine. The Paveway III definitely does as per that video. The Paveway II is also supposed to use bang-bang guidance, I know it once did in DCS, but that seems to have changed and it now appears to use proportional control. Modules I own: F-14A/B, F-4E, Mi-24P, AJS 37, AV-8B N/A, F-5E-3, MiG-21bis, F-16CM, F/A-18C, Supercarrier, Mi-8MTV2, UH-1H, Mirage 2000C, FC3, MiG-15bis, Ka-50, A-10C (+ A-10C II), P-47D, P-51D, C-101, Yak-52, WWII Assets, CA, NS430, Hawk. Terrains I own: South Atlantic, Syria, The Channel, SoH/PG, Marianas. System: GIGABYTE B650 AORUS ELITE AX, AMD Ryzen 5 7600, Corsair Vengeance DDR5-5200 32 GB, NVIDIA GeForce RTX 4070S FE, Western Digital Black SN850X 1 TB (DCS dedicated) & 2 TB NVMe SSDs, Corsair RM850X 850 W, NZXT H7 Flow, MSI G274CV. Peripherals: VKB Gunfighter Mk.II w. MCG Pro, MFG Crosswind V3 Graphite, Logitech Extreme 3D Pro.
Blaze1 Posted May 25, 2024 Posted May 25, 2024 20 minutes ago, Northstar98 said: I might be misremembering, I have seen drop footage which appears to show the weapon making a roll but they're quite brief, which makes it difficult to determine. The Paveway III definitely does as per that video. The Paveway II is also supposed to use bang-bang guidance, I know it once did in DCS, but that seems to have changed and it now appears to use proportional control. That's my understanding as well regarding the PWIII. Roll rate is supposed to range between 30°/sec. to 200°/sec depending on flight conditions etc. 1
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