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IASGATG

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  1. You are right. In testing at 40kft at Mach 2 it hit high M3 so I assumed it'd break M4. Nevertheless, the Cd curves match wind tunnel data and the fly out performance is very close to known DLZ and range criteria so I'm confident in its modeling.
  2. I don't feel that you're doing justice to how accurately modeled missiles can be. There will always be an element of assumptions made even when you have models in a wind tunnel. This doesn't mean you cannot generate a reliable predictive model for how something should behave. The stuff that is classified, which cannot be independently and accurately assumed, is stuff that doesn't really matter since DCS doesn't/can't really simulate it. If you look at the AIM-9M modeled in DCS. There are publicly available documents that list it's Cd, Cl, Cm, Xcp, Thrust, Structural Limits, etc etc. Thi
  3. Quite a bit better. I think there is a bug which I've asked about which undoes some of the good work, but I've found that for a 10kft alt engagement, it adds about 0.5-0.75M worth of energy to the missile. The bug I think I found is where at 8km, the missile suddenly switches to 100% PN which if I understand the code correctly, it shouldn't. This means when it hits 8km it suddenly goes from gentle 1.5g turns to 10-15g turns which dumps a ton of energy. We'll see if this is a bug or is as intended though.
  4. The current AIM-7 FM matches very closely to known reliable data. The in game AIM-7 can exceed Mach 4 when fired in the right conditions. Nothing to see here.
  5. Sorry for the wall of images below, if someone knows how I can do some sort of "spoiler" hide button or something please let me know. The first series shows the vanilla AIM-7M fired at sea level, 30kft and 50kft, showing the base relative maximum range as defined previously. It shows that at sea level the missile is has a range of 10nmi instead of 14nmi. At 30kft it's about 24nmi instead of 25nmi. Lastly at 50kft it is 50nmi instead of 38nmi. The missile is too slow, even at 30kft, and especially at lower altitudes, whilst is too fast at extreme altitudes. The second series is my modifie
  6. Well the definition of relative max range is clearer than aerodynamic max range. Relative max says that the missile will impact at the same speed as launch speed. This gives a very clear picture of how much the missile should be decelerating by.
  7. Hey Chizh buddy. I've been given permission to show this which should clear everything up. What's interesting is that the vanilla 7M actually outperforms in the 50kft shot slightly. It arrives at M2.2 I believe? Instead of M2.0 (For the 38nm shot). It's the low altitude shots that the missile falls very short in. Basically the transonic drag is too high and the M4 drag is too low. Ive done my best to bend the curve to fit these variables and after about 55 iterations I got pretty close, still slightly too fast at 50kft. Probably because the drag reduction for the motor being lit isn't r
  8. Sure, they could have put 2 place holder AIM-7 variants to accompany the 7M, with all three missiles having identical code until they decide which direction they want to take things. However your quote of "any long range missile" then doesn't make sense, since they already have the 7M in the game. What does the radar have to do with anything? As established there are two problems with the missile. Firstly it's Cd curve is wrong, and secondly the guidance logic overall for all missiles is simple. ED has confirmed they are fixing at least the second at some point (Wags in August 2015). Nei
  9. There are two phases. A loft phase where the missile attempts to keep the target and a specific angle relative to the horizon. It maintains this until a specified distance to target, at which point it ends and instantly enters what you're calling the terminal phase. In the terminal phase, the missile attempts to keep a specific angle of lead pursuit. Only if the missile is coded to have the right seeker head and the loft code is enabled with the variables completed will it loft. If it is not set it will be terminal off the rail. There is no control to adjust the terminal guidance laws.
  10. In the code you can set physical missile characteristics, like weight, thrust, burn time, drag curves etc. What you can't change is the guidance laws the missile follows. This means that third parties can make missiles that fly in a straight line quite closely to how they should, but they cannot stop the missiles from bleeding energy from constant little turns. The bigger problem for the AIM-7 is that at low levels, it has about half the straight line range it should. This is a relatively quick and easy fix, where as the guidance requires a code overhaul.
  11. Hey Weta, any thoughts on the missile falling well short on sea level up to 30kft?
  12. Okay lets make this test as clear and simple as possible. AIM-7F/M, at 30kft, at M1.2, vs 30kft M1.2, has an RAero of approximately 30nmi. For this to be considered successful RAero intercept, the missile needs to hit the target within 70seconds, and with a Mach number of approximately 1.2 to have the energy necessary to make an intercept turn. Here we see the setup, slightly under 30nmi, with the launcher slightly under M1.2 (1.15). On impact, the missile made the intercept within the 70 second timer (61 seconds), but was too slow (Mach 0.79) Rewinding the track, we se
  13. Hey Weta. So the 53nmi range comes from the USAF F-4 weapons manual which states that at 40kft at M2.0 vs 40kft M2.0 the missile will have a maximum aerodynamic range of 53nmi. It defines RAero as "the maximum distance a missile can travel while still able to effectively maneuver against a target." This includes the number of g's necessary to perform strategic maneuvers. This means that at the 53nmi intercept point the AIM-7F should have the energy to perform at least a 4g pull for a second to hit the target. This would require the missile to be approximately Mach 1. I'd like to note as
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