FusRoPotato Posted July 28, 2023 Posted July 28, 2023 (edited) I've turned off the sas and noticed the aircraft randomly oscillates quite heavily on all axis. I'm not sure if this is a plane problem or a DCS weather problem, but it's definitely consistent and not an honest result. I've also noticed the wing-flex animation gets permanently deformed after oscillating strongly through these instabilities, which maybe suggests where the problem is, because that boron-aluminum composite does not deform like that. It cracks and then it snaps. You'd have to pull about 27 G's on that aircraft and perfectly and instantly reduce it to have to see some kind of permanent deformation, which is basically impossible and has never happened before. The plastic region is super small and sharply drops off past the elastic. I hope I can assume this was an unintended result and not just a cheap grab for cool points because it could indicate a clue towards some part of the dynamic scripting getting stuck and causing these response problems. It normally doesn't act too crazy on a fresh plane, just oddly sensitive like input gains are off or perhaps some components are acting like they have negative mass still? Previously I thought it was just negative fuel weight bug causing these issues, but there may still be something more fundamental breaking. Edited July 28, 2023 by FusRoPotato
ORboarder Posted July 29, 2023 Posted July 29, 2023 seems to me that it may be a result of the ramps moving? very easy jet to PIO in pitch. felt immediately "wrong" to me
afnav130 Posted July 29, 2023 Posted July 29, 2023 On 7/12/2023 at 8:38 PM, FlankerKiller said: I'm not the one who can't fly the plane. So I have no need to post a track of the Mud Hen flying exactly like every real F-15 I've ever seen. Also CAS and fly by wire are totally different. The JSTAR had actuators and force sensors on the yoke. I promise you it's not FBW. The F-15, excluding the EX, uses hydrologic and mechanical linkage to control the jet with a Control Augmentation System to help stabilize the jet. You could take the CAS components out and beat them flat with a hammer, and still fly the F-15, albeit it isn't safe because you could easily fly it into destruction. But you could take off and land. In short YOU are flying an F-15, excluding the EX. The Hornet is Fly By Wire. It is "flown" by a flight control computer. You "tell" the computer what you want the jet to do and the computer moves the flight controls the accomplish it as best it can. That is why you can ham fist it and it's fine. You Are Not Flying a Hornet. If that computer gose out you eject period. You have no control over the flight controls. As for what I'm telling you I'll make it simple. If the nose is pitching up when you release the stick press the trim nose down button until it flys level when you release the stick. Your pitching problem will immediately disappear. As for this being correct or not I'm not sure. If the CAS is supposed to auto trim then Razbam will fix it. If it dosen't auto trim then get used to it. The F15E has a better CAS system than the C model and that one only requires trim on takeoff, weapon asymmetric, and if you want landing. Post takeoff, once it is trimmed back to level, it is supposed to stay there, power on, power off no matter. The only time it doesn't iirc is when using burner and I don't think a lot of people understand this. For me, right now in the sim I have to turn the CAS switches off, then on again and the jet flies just as it is reported to be flown. I am not the only one that has this issue and it certainly doesn't line up with how the 15 is said to fly. This is coming from a real life 15E guy and other documents out there. Go watch the 10 Percent True podcast with the F15E driver. He said you could see the velocity vector bouncing up and down as it sought to maintain level flight. That doesn't happen in the sim right now. While not true FBW it is damn close to it in how it performs, and the only real difference is it allows you to over G the aircraft. 1
FlankerKiller Posted July 30, 2023 Posted July 30, 2023 20 hours ago, afnav130 said: The F15E has a better CAS system than the C model and that one only requires trim on takeoff, weapon asymmetric, and if you want landing. Post takeoff, once it is trimmed back to level, it is supposed to stay there, power on, power off no matter. The only time it doesn't iirc is when using burner and I don't think a lot of people understand this. For me, right now in the sim I have to turn the CAS switches off, then on again and the jet flies just as it is reported to be flown. I am not the only one that has this issue and it certainly doesn't line up with how the 15 is said to fly. This is coming from a real life 15E guy and other documents out there. Go watch the 10 Percent True podcast with the F15E driver. He said you could see the velocity vector bouncing up and down as it sought to maintain level flight. That doesn't happen in the sim right now. While not true FBW it is damn close to it in how it performs, and the only real difference is it allows you to over G the aircraft. I don't know but I can fly it fine. Is it correct now, probably not. Welcome to early access. But it certainly doesn't pogo once trimmed. Maybe I only trim it in burner, but that's still trimming it. As for fly by wire there is no close. It ether is or isn't fly by wire. And the F-15E isn't. That's coming for twenty one years of working with the guys that kept it flying. I haven't even flown it after the patch, maybe it flys like the C now. I have no clue. But it never had I pogo behavior.
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