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[1.0.5] Advanced Jet Engine v2.6.1 - Feb 1

camlost

By camlost
in KSP1 Mod Releases

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Firov

Firov

Posted
Posted
The thing is this turbine is not creating enough power to override the power created by the prop. It is no different then the helicopter turbine that drives the main rotor on many modern helicopters. Same for the turbine in the M1 Abrams tank, it also is there to create power, a large amount of power in a small amount of mass. Neither the Abrams or the Blackhawk use their turbines to generate thrust to propel the vehicle.

Agreed. The power generated by the turbine is largely diverted to the drive shaft, which in turn spins the prop. The actual exhaust delivers a negligible amount of thrust compared to the prop. However, I'm not talking about the source of thrust here, that's clearly the propeller, but rather the actual engine operation. I don't believe turbine engines have pilot adjustable fuel mixtures, no more so than high-bypass turbofan engines do. Or if they do, it's certainly not scaleable from 0 to 100%.

Still, I'd be interested in hearing Nathan's opinion on this, as I'm sure he'd be more knowledgeable on the matter. It could be this is just a bug.

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Hagatora

Hagatora

Posted
Posted

I believe they have some control over the mixture just not to the degree some piston engines do. Most piston engines, well modern ones, no longer have much of a mixture control anymore either. It is handled by one of the on board computers, that adapts and follows a set of fuel mix settings based on throttle position, air speed, and air pressure (altitude).

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NathanKell

NathanKell

Posted
Posted

1. Sadly right now there's no actual turboprop support in AJE; they're treated as piston engines.

2. The mixture control is more designed for WWII-era engines (as were most of the piston engine changes I made, to account for turbochargers, superchargers, ram air, etc).

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Divided by Zero

Divided by Zero

Posted
Posted
1. Sadly right now there's no actual turboprop support in AJE; they're treated as piston engines.

2. The mixture control is more designed for WWII-era engines (as were most of the piston engine changes I made, to account for turbochargers, superchargers, ram air, etc).

Out of interest, (when they actually work) do the props in AJE use FAR to generate thrust independently from the stock thrust mechanism? If so how does this affect plane building?

God I wish they worked

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jab136

jab136

Posted
Posted (edited)

I am having trouble modifying the AJE.cft so that I can use the mod without Real Fuels (I don't feel like using RSS and Real Fuels kind of needs it) here is the modified AJE.cfg that I am trying to use



@PART[JetEngine]:Final
{


	@title = AJE Pratt & Whitney F100-PW-229A turbofan
	@mass = 1.7
	@description = Pratt and Whitney F100 low-bypass turbofan with afterburner, used by F-15E/I/S and F-16C/D. Powered by NASA EngineSim. SFC 0.74/2.05 lb/lbf-hr static. Temperature limit Mach 2.85.

	%CoMOffset = 0, 1.7, 0




	!MODULE[ModuleGimbal]
	{
	}




	!MODULE[ModuleEngineConfigs]
    {
    }
	MODULE
	{
		name = AJEModule
		IspMultiplier=1
		defaultentype = 3
		defineenparm= true
		acore=4.223
		byprat=0.36
		tinlt=1200
		prat2=1
		eta2=1
		tfan=1800
		prat13=3.8
		eta13=1
		tcomp=1800
		prat3=9.21
		eta3=0.95
		tt4=2921
		prat4=1
		eta4=0.98
		eta5=0.98
		fhv=18600
		tt7=7296
		eta7=0.98
		abflag=1
		ABIspMult = 1.2618
	}

	 @MODULE[ModuleEngines*]
	 {
		@maxThrust=128
	 }	


}

@PART[turboFanEngine]:Final //TurboJet
{


	%CoMOffset = 0, 2.5, 0



	!MODULE[ModuleGimbal]
	{
	}



	@title = AJE Pratt & Whitney J58-P-4
	@mass = 2.7
	@description =  Designed in the late 1950s, the J58 was redesigned and repurposed for one use: Mach 3+ aircraft like the A-12 / SR-71A/B / YF-12A. This model, the only operational one, entered service with the Blackbird in the mid 1960s. Variable CPR from 8.8 to 2.93 due to bypass vents progressively opening past Mach 2; fully open at Mach 3. 111.2kN dry. SFC 0.8/1.9 lb/lbf-hr static. Temperature limit Mach 4.1.


	!MODULE[ModuleEngineConfigs]
    {
    }

	MODULE
	{
		name = AJEModule
		IspMultiplier=1
		defaultentype=2
		defineenparm= true
		acore=8.007
		byprat=0
		tinlt = 1800
		tfan = 2000
		tcomp = 2300
		tt4 = 2450
		tt7 = 3786
		prat2 = 1
		prat13 = 1
		prat3 = 8.5
		prat4 = 1
		eta2 = 1
		eta13 = 1
		eta3 = 0.89
		eta4 = 0.98
		eta5 = 0.93
		eta7 = 0.96
		abflag=1
		fhv=20000
		ABIspMult = 0.7245687632
		usePrat3Curve = true
		prat3Curve
		{
			key = 0.0	8.5	0	0
			key = 2.0	8.5	0	0
			key = 3.0	2.93	0	0
			key = 3.1	2.93	0	0
		}
	}

	 @MODULE[ModuleEngines*]
	 {
		@maxThrust=150
	 }	


}



@PART[RAPIER]:Final
{	
	%CoMOffset = 0, 2, 0
	@title = AJE RAPIER
	!MODULE[ModuleEnginesFX]{}	
	!MODULE[ModuleEnginesFX]{}

	MODULE
	{
		name = ModuleEnginesFX
		engineID = AirBreathing
		directThrottleEffectName = power_open
		runningEffectName = running_open
		thrustVectorTransformName = thrustTransform
		exhaustDamage = True
		ignitionThreshold = 0.33
		minThrust = 0
		maxThrust = 190
		heatProduction = 350
		useEngineResponseTime = True
		engineAccelerationSpeed = 0.2
		engineDecelerationSpeed = 0.35
		useVelocityCurve = True
		PROPELLANT
		{
			name = LiquidFuel
			ratio = 1
			DrawGauge = True
		}

		atmosphereCurve
		{
			key = 0 1200
			key = 0.3 2500
			key = 1 800
		}
		velocityCurve
		{
			key = 0 0.5 0 0
			key = 1000 1 0 0
			key = 2000 0.5 0 0
			key = 2200 0 0 0
		}

	}
	MODULE
	{
		name = ModuleEnginesFX
		engineID = ClosedCycle
		runningEffectName = running_closed
		thrustVectorTransformName = thrustTransform
		exhaustDamage = True
		ignitionThreshold = 0.1
		minThrust = 0
		maxThrust = 175
		heatProduction = 350
		fxOffset = 0, 0, 0.25
		PROPELLANT
		{
			name = LiquidFuel
			ratio = 0.36
			DrawGauge = True
		}
		PROPELLANT
		{
		 name = Oxidizer		 
        ratio = 0.64
		}
		atmosphereCurve
		{
		 key = 0 360
		 key = 1 320
		}

	}
		MODULE
		{
			name = AJEModule
			IspMultiplier=1
			defaultentype=2
			useOverheat=false
			isReactionEngine=true
			acore=9
			byprat=0
			tinlt=3000
			tfan=3000
			tcomp=4000
			tt4=2450
			tt7=4000
			prat3=9
			fhv=18600
			usePrat3Curve = True
			maxThrust=250
			prat3Curve
			{
				key = 0.0	9.0		0	0
				key = 2.0	8.0		0	0
				key = 3.0	3.0		0	0
			}
		}
}


+PART[JetEngine]:Final
{

	@name = aje_f404
	@title = AJE General Electric F404-GE-402 turbofan
	@mass = 1.0
	@description = General Electric F404-GE-402 low-bypass turbofan with afterburner as used on F/A-18C/D. 53.16kN dry. SFC 0.82/1.74 lb/lbf-hr static. Temperature limit Mach 2.85.
	%rescaleFactor = 0.9375
	%CoMOffset = 0, 1.3, 0


	!MODULE[AJEModule]
	{
	}

	MODULE
	{
		name = AJEModule
		IspMultiplier=1
		defaultentype = 3
		acore=2.991
		byprat=0.31
		tinlt=1200
		prat2=1
		eta2=1
		tfan=1800
		prat13=2
		eta13=1
		tcomp=2460
		prat3=13
		eta3=0.98
		tt4=2699
		prat4=1
		eta4=0.98
		eta5=0.98
		fhv=15300
		tt7=4700
		eta7=0.93
		abflag=1
	}


	 @MODULE[ModuleEngines*]
	 {
		@maxThrust=80
	 }	

}



Edited by jab136
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Ralathon

Ralathon

Posted
Posted
I am having trouble modifying the AJE.cft so that I can use the mod without Real Fuels (I don't feel like using RSS and Real Fuels kind of needs it) here is the modified AJE.cfg that I am trying to use



@PART[JetEngine]:Final
{


    @title = AJE Pratt & Whitney F100-PW-229A turbofan
    @mass = 1.7
    @description = Pratt and Whitney F100 low-bypass turbofan with afterburner, used by F-15E/I/S and F-16C/D. Powered by NASA EngineSim. SFC 0.74/2.05 lb/lbf-hr static. Temperature limit Mach 2.85.

    %CoMOffset = 0, 1.7, 0




    !MODULE[ModuleGimbal]
    {
    }




    !MODULE[ModuleEngineConfigs]
    {
    }
    MODULE
    {
        name = AJEModule
        IspMultiplier=1
        defaultentype = 3
        defineenparm= true
        acore=4.223
        byprat=0.36
        tinlt=1200
        prat2=1
        eta2=1
        tfan=1800
        prat13=3.8
        eta13=1
        tcomp=1800
        prat3=9.21
        eta3=0.95
        tt4=2921
        prat4=1
        eta4=0.98
        eta5=0.98
        fhv=18600
        tt7=7296
        eta7=0.98
        abflag=1
        ABIspMult = 1.2618
    }

     @MODULE[ModuleEngines*]
     {
        @maxThrust=128
     }    


}

@PART[turboFanEngine]:Final //TurboJet
{


    %CoMOffset = 0, 2.5, 0



    !MODULE[ModuleGimbal]
    {
    }



    @title = AJE Pratt & Whitney J58-P-4
    @mass = 2.7
    @description =  Designed in the late 1950s, the J58 was redesigned and repurposed for one use: Mach 3+ aircraft like the A-12 / SR-71A/B / YF-12A. This model, the only operational one, entered service with the Blackbird in the mid 1960s. Variable CPR from 8.8 to 2.93 due to bypass vents progressively opening past Mach 2; fully open at Mach 3. 111.2kN dry. SFC 0.8/1.9 lb/lbf-hr static. Temperature limit Mach 4.1.


    !MODULE[ModuleEngineConfigs]
    {
    }

    MODULE
    {
        name = AJEModule
        IspMultiplier=1
        defaultentype=2
        defineenparm= true
        acore=8.007
        byprat=0
        tinlt = 1800
        tfan = 2000
        tcomp = 2300
        tt4 = 2450
        tt7 = 3786
        prat2 = 1
        prat13 = 1
        prat3 = 8.5
        prat4 = 1
        eta2 = 1
        eta13 = 1
        eta3 = 0.89
        eta4 = 0.98
        eta5 = 0.93
        eta7 = 0.96
        abflag=1
        fhv=20000
        ABIspMult = 0.7245687632
        usePrat3Curve = true
        prat3Curve
        {
            key = 0.0    8.5    0    0
            key = 2.0    8.5    0    0
            key = 3.0    2.93    0    0
            key = 3.1    2.93    0    0
        }
    }

     @MODULE[ModuleEngines*]
     {
        @maxThrust=150
     }    


}



@PART[RAPIER]:Final
{    
    %CoMOffset = 0, 2, 0
    @title = AJE RAPIER
    !MODULE[ModuleEnginesFX]{}    
    !MODULE[ModuleEnginesFX]{}

    MODULE
    {
        name = ModuleEnginesFX
        engineID = AirBreathing
        directThrottleEffectName = power_open
        runningEffectName = running_open
        thrustVectorTransformName = thrustTransform
        exhaustDamage = True
        ignitionThreshold = 0.33
        minThrust = 0
        maxThrust = 190
        heatProduction = 350
        useEngineResponseTime = True
        engineAccelerationSpeed = 0.2
        engineDecelerationSpeed = 0.35
        useVelocityCurve = True
        PROPELLANT
        {
            name = LiquidFuel
            ratio = 1
            DrawGauge = True
        }

        atmosphereCurve
        {
            key = 0 1200
            key = 0.3 2500
            key = 1 800
        }
        velocityCurve
        {
            key = 0 0.5 0 0
            key = 1000 1 0 0
            key = 2000 0.5 0 0
            key = 2200 0 0 0
        }

    }
    MODULE
    {
        name = ModuleEnginesFX
        engineID = ClosedCycle
        runningEffectName = running_closed
        thrustVectorTransformName = thrustTransform
        exhaustDamage = True
        ignitionThreshold = 0.1
        minThrust = 0
        maxThrust = 175
        heatProduction = 350
        fxOffset = 0, 0, 0.25
        PROPELLANT
        {
            name = LiquidFuel
            ratio = 0.36
            DrawGauge = True
        }
        PROPELLANT
        {
         name = Oxidizer         
                 ratio = 0.64
        }
        atmosphereCurve
        {
         key = 0 360
         key = 1 320
        }

    }
        MODULE
        {
            name = AJEModule
            IspMultiplier=1
            defaultentype=2
            useOverheat=false
            isReactionEngine=true
            acore=9
            byprat=0
            tinlt=3000
            tfan=3000
            tcomp=4000
            tt4=2450
            tt7=4000
            prat3=9
            fhv=18600
            usePrat3Curve = True
            maxThrust=250
            prat3Curve
            {
                key = 0.0    9.0        0    0
                key = 2.0    8.0        0    0
                key = 3.0    3.0        0    0
            }
        }
}


+PART[JetEngine]:Final
{

    @name = aje_f404
    @title = AJE General Electric F404-GE-402 turbofan
    @mass = 1.0
    @description = General Electric F404-GE-402 low-bypass turbofan with afterburner as used on F/A-18C/D. 53.16kN dry. SFC 0.82/1.74 lb/lbf-hr static. Temperature limit Mach 2.85.
    %rescaleFactor = 0.9375
    %CoMOffset = 0, 1.3, 0


    !MODULE[AJEModule]
    {
    }

    MODULE
    {
        name = AJEModule
        IspMultiplier=1
        defaultentype = 3
        acore=2.991
        byprat=0.31
        tinlt=1200
        prat2=1
        eta2=1
        tfan=1800
        prat13=2
        eta13=1
        tcomp=2460
        prat3=13
        eta3=0.98
        tt4=2699
        prat4=1
        eta4=0.98
        eta5=0.98
        fhv=15300
        tt7=4700
        eta7=0.93
        abflag=1
    }


     @MODULE[ModuleEngines*]
     {
        @maxThrust=80
     }    

}



So what's going wrong with that config?

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jab136

jab136

Posted
Posted (edited)
So what's going wrong with that config?

When I try to boot KSP x64 the load screen freezes on the RAPIER engine from the squad folder, I haven't installed B9 yet on this version but I assume the same issue will arise there with the SABRE engines

edit: ok, got it working for now (apparently... will test engines in game to make sure they function, still haven't dealt with SABRE engines yet)

edit 2: just tested it in game, and it appears to use oxidizer at a much higher rate than liquid fuel, also I was able to use it at very high altitude where I had no intake air and it also stopped using liquid fuel at that point

edit 3: ok booted up engineer, built a test craft in the VAB (crew pod, 4 radial intakes, a fuel tank and a RAPIER engine) burned as a rocket until I ran out of oxidizer, switched to jet, and it kept burning all the way up to 60 km even though the TWR went down to .01, it also stopped using liquid fuel at that point. it appears the burnout threshold is messed up, will take a look

edit 4 (final edit for this post) got it fixed, just had to change the ratios for liquid fuel and oxidizer, the flameout still doesn't happen though, but I can deal with that, as I will probably be switching mode way before that would happen anyway as the TWR drops too low

Edited by jab136
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erbmur

erbmur

Posted
Posted

Love the concept of this mod.

I don't use the Real Fuels so have removed all traces of kerosene etc from the b9 sabres just fines. But for some reason it doesn't seem to load the firespitter FS_noseEngine part. I have looked at the .cfg but there doesn't seem to be any modification of fuel types for the engine so I don't know why it isn't loading.

Any suggestions?

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NathanKell

NathanKell

Posted
Posted

1. Describe the problem

2. Reproduction steps.

3. Cause the problem. Quit KSP (if it hasn't crashed). Upload your entire output log (NOT ksp.log) to dropbox or something.

Windows: KSP_win\KSP_Data\output_log.txt OR KSP_win64\KSP_x64_DATA\output_log.txt (depending on which used)

Mac OSX: Open Console, on the left side of the window there is a menu that says 'files'. Scroll down the list and find the Unity drop down, under Unity there will be Player.log ( Files>~/Library/Logs>Unity>Player.log )

Linux: ~/.config/unity3d/Squad/Kerbal\ Space\ Program/Player.log

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erbmur

erbmur

Posted
Posted
1. Describe the problem

2. Reproduction steps.

3. Cause the problem. Quit KSP (if it hasn't crashed). Upload your entire output log (NOT ksp.log) to dropbox or something.

Windows: KSP_win\KSP_Data\output_log.txt OR KSP_win64\KSP_x64_DATA\output_log.txt (depending on which used)

Mac OSX: Open Console, on the left side of the window there is a menu that says 'files'. Scroll down the list and find the Unity drop down, under Unity there will be Player.log ( Files>~/Library/Logs>Unity>Player.log )

Linux: ~/.config/unity3d/Squad/Kerbal\ Space\ Program/Player.log

Real Fuels is not installed, so as stated in the first post, I rpelaced all RealFuels with Oxidizer/LiquidFuel. Now on startup, the game loads the b9 rapier parts just fine, but now it freezes on loading Firespitter/Parts/Engine/FS_noseEngine/part/Griffin101. Removing AJE causes the game to load normally.

Log file - https://drive.google.com/file/d/0ByopNDhXUXrFSjlET2ZyVGlZdFE/edit?usp=sharing

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Divided by Zero

Divided by Zero

Posted
Posted

I so, so want to use this mod, but in the state it's in, I just can't justify it. It has such an awesome premise, and when it does work it's glorious, but right now, half of the mod (the prop engines and helis) are totally broken, it has a nasty habit of giving me a blank part catalog, a lot of the engines are weirdly sized, and there's poor compatibility with non-RF installs. If those were all reasonably fixed, this would be so cool, but now? Fix plz

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mike9606

mike9606

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Posted
I so, so want to use this mod, but in the state it's in, I just can't justify it. It has such an awesome premise, and when it does work it's glorious, but right now, half of the mod (the prop engines and helis) are totally broken, it has a nasty habit of giving me a blank part catalog, a lot of the engines are weirdly sized, and there's poor compatibility with non-RF installs. If those were all reasonably fixed, this would be so cool, but now? Fix plz

You probably have an old version. Download this from the link NathanKell posted above.

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Firov

Firov

Posted
Posted
You probably have an old version. Download this from the link NathanKell posted above.

Unfortunately, in this case, getting the latest release from GitHub won't help. Props and rotors are still completely broken, with most of them being extremely tiny (physically) and producing no more than 5kN of thrust.

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Divided by Zero

Divided by Zero

Posted
Posted
Unfortunately, in this case, getting the latest release from GitHub won't help. Props and rotors are still completely broken, with most of them being extremely tiny (physically) and producing no more than 5kN of thrust.

Correct. When will this be fixed? I can deal with all the other problems for the most part, but this is a core feature!

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NathanKell

NathanKell

Posted
Posted

In about 10 minutes.

I had compiled against the latest dev release of FAR rather than the one people are (presumably) using. Note that since AJEPropeller has a hard reference to FAR, it will need to be kept in sync with FAR.

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Divided by Zero

Divided by Zero

Posted
Posted
In about 10 minutes.

I had compiled against the latest dev release of FAR rather than the one people are (presumably) using. Note that since AJEPropeller has a hard reference to FAR, it will need to be kept in sync with FAR.

Great support, i wish all mod authors were as quick as you!

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