camlost

@NathenKell, I think you should use basemass=-1 in all the B9 fuselages, for both RO and RF. I think the current implementation is just too weird. You have 2m HL fuselage section that weighs 0.1t, and 0.5m one weighs 2t. Same thing for the stock mk1, mk2 and mk3 fuselage

@Bloodbunny, AFAIK all the commercial flight-sims use look-up tables to calculate engine thrust. Most of them (except x-plane) use look-up table for aerodynamics too. So whether or not a flight model is realistic totally depends on the quality of data. My point is in flight-sim world there're good products and bad products. Even if you try different simulators I believe they will feel different. Now if you compare the aircraft performance brought by FAR+AJE+whatever to reality, they will certainly be different. The equations can never reflect reality 100%, and there are many features that are lacking. For example, airfoil, fowler flap, induced vortex, inlet, ground effect... There's also the limitation caused by KSP being a game based on parts but not a fully-functional 3-d editor

If that's true it's a compatibility problem between TweakableEverything and HotRockets. You can try deleting hotrockets and follow the instruction on the OP. HotRockets convert ME to MEFX(introduced in 0.23) to use the fancy effects, but there's a chance that certain mods don't recognize MEFX

That's definitely MM problem. Usually that happens when engine has ME but AJE thought it has MEFX or the other way around. But that shouldn't happen with the latest version. If you cannot solve the problem post the cfg you see from debug. No need to write it line by line just outline what modules are in there

What is exactly the problem with stock engines? This is most likely some kind of MM-using mod conflict. Could you open debug->parts, find the Squad/Parts/Engines/JetEngine.cfg and see what's in there? If you use hotrockets, It should have one moduleEnginesFX, and one AJEModule If you don't , it should have one moduleEngines, and one AJEModule

What do you mean by "small jet engine"? Is there a bigger one? The only way to properly simulate jet engines is AJE (see signature) AFAIK

I guess the question now is, what is the best range you can get? And I think lowering the AR a little is better for supersonic purpose

OMG are you doing KSP 24/7? How I envy your life...

The stock algorithm is just not worth the time. The intakes should work like this: the program calculates its recovery efficiency according to AoA and Mach number. Each kind of intakes should have a different Mach number curve. The efficiency works like a multiplier to the thrust. Right now, all inlet efficiency=1.

Aje updates part temperature every physical interval. So it's supposed to overwrite others

The best way to fix moduleEnginesFX compatibility is to use an "EngineWrapper" class. That way a module can recognize ME or MEFX automatically. See source code of my AJE (signature) or HoneyFox's EngineIgnitor. Has the author abandoned this project? Can someone take over and do it?

Wow, you have an impressive fleet. Where did you get the cockpit for the last one? First of all, the D-30F6 should have byprat=0.57. And what's the difference between that and F-100? In the future, I may make something to allow choosing engine parameters in the editor, very much like what PP does. It will save many engines in one xml probably. Then you can choose any afterburning turbojet/low bypass turbofan to replace the stock jet. I think the stock turbofan should remain some kind of ramjet, its nozzle 3d model is quite special. May be it should choose from ramjet, turboramjet, or scramjet if that's figured out. Any other ideas? Any ideas on the RAPIER? But I'll be very busy for a few months. And I'm not a coder anyway. If somebody want to contribute I'll be happy to discuss about it. Seems to me completely copying historical airplanes can be futile. Even if you have the exact same engine thrust, you may not have the exact same size of fuselage and wings. Let along that 3rd generation and after fighters usually take advantage of induced vortices which FAR doesn't model. Also FAR has only one airfoil so some subsonic designs can be weak too. Personally I like thinking like a designer. Set up goals for max speed, weight and range, then choose engines and geometry. From that viewpoint, engines from roughly the same era and same purpose are very similar. By "purpose" I mean CPR. A high-CPR (>20) favors subsonic thrust and efficiency, and a low-CPR favors supersonic thrust and efficiency. Ramjet as no CPR, and its best performance is >Mach 3. Generally you always want a higher TET, and that represents "era".

@NathanKell, AJEModule supports ME and MEFX now.

@Ferram, I would like to have AJE use the atmosphere parameters from FAR. I need Mach number, static pressure and temperature. How do I access them from a FAR module? -----Never mind, found FAR's code

If you have anything to say regarding AJE, say it in my thread (see signature). All the engines use Kerosene, that's why you need RF. If you really, really, badly don't want RF, you can always convert name=Kerosene to name=LiquidFuel

Does node[name,index] work now? If it does, which version of MM ?

First, i was aware of the compatibility issue about cfg and i used FINAL all along. Here's what happens when you have aje correctly installed and load up sabre. B9 uses hydraenginecontroller, hotrocket deletes that and add two mefx and one multimodeengine, rf adds mhe ,finally aje deletes mhe and two mefx, adds two new mefx with hydrogen and all. AJE doesn't update the closed-cycle one.

@HoneyFox, if MEFX is used then there's no point in using ModuleHybridEngine. Basically two MEFXs and one switch module. That's exactly what Hotrocket does hence AJE does. Also there's no compatibility issue. Previously I missed a "}" in SABRE M cfg and caused a bug. @Nathan, Good to know, MEFX is the future.

What's your attitude towards ModuleenginesFX ? What compatibility issue will there be, if let's say we use wildcard to convert everything to mefx

This Or try the new J93. TET and CPR have great effects on the "velocitycurve". TET: turbine entry temperature CPR: compressor pressure ratio

I'm not sure what KSPI does. I think most of the KSP community is all about cosmetic things Is there any specific problems you are having?

The J58 has a air-bleeding feature, that means its compression ratio is variable, which cannot be simulated by NASA engineSim directly. A turboramjet is basically a turbojet with a low compression ratio, at least mathematically it can be described with the same thermodynamic equations. So they are not the same thing. The engines for Mig-25 and XB-70 are basically just turbojets. Their problems were mostly regarding material.

1. acore is directly proportional to thrust, however allowing to change this is kind of cheap. The best thing is probably to change the compression ratio (prat3) and turbine temperature (tt4). These two affect thrust, isp and velocity curve. Also that's what happens in RL when, for example a better material is invented. Is there an API like RF's techlevel scaling but allows tweaking two parameters? 2. Not directly. The best thing I can think about is having two AJEModules, one is a turbojet and the other one a ramjet. Air flow needs to be distributed between them by some mechanism. 3. A turboramjet is mathematically equal to a turbojet with afterburner and low prat3 and tt4 4. Wait for the next version that's coming soon. The B9 turbojet seems fine. But does the f-119's smartgimbal module support FX? The two high-bypass turbofans requires firespitter.dll to animate and they shouldn't be having scorching exhaust anyway. That's why I'm not using FX yet. But with next version, you should be able to convert anything into FX by simply renaming AJEModule to AJEModuleFX.

Also you can use rescale or rescalefactor in the cfg. That way you can have multiple parts using the same .mu

@MAKC If you replace AJEModule in the B9 turbojet for this, you should get something close to D-30F6 MODULE { name = AJEModule IspMultiplier=1 defaultentype=2 defineenparm= true acore=5.5 byprat=0 prat3=20 tt4=3000 tt7=6200 abflag=1 fhv=18600 eta7=0.8 tinlt=1300 tfan=1500 tcomp=2700 }