Propeller Atmosphere and Velocity curves in 1.0?

[Quiznos323]

Hey all, I'm trying to make a wing/prop engine combo part but the atmosphere and velocity curves are stumping me... I set the max thrust to 100 but for some reason it's using the ISP from the atmosphere curve and causing the part to have a max thrust of 1200 at sea level. Anyone know what I can do to get a reasonable propeller effect? I'm using the firespitter plugin. This is my first propeller so I don't really know what I'm doing xD

EDIT: Bonus question. The fans in the wings rotate 90 degrees using the firespitter VTOL module, but every time I launch the craft the fans are already at 90 degrees even though they were horizontal in the SPH How can I get them to start horizontal and then flip up to 90 degrees when activating VTOL? Thanks!

The complete cfg is here:

PART
{


// --- general parameters ---
name = quizTechVTOLwing
module = Part
author = Quiznos323


// --- asset parameters ---
mesh = VTOL_FanWing.mu
scale = 0.1
rescaleFactor = 1.0


// --- node definitions ---
node_attach = 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 1




// --- editor parameters ---
TechRequired = aerodynamicSystems
cost = 950
category = Engine
subcategory = 0
title = VTOL Fan Wing (needs a better name)
manufacturer = QuizTech Aerodynamics Division
description = placeholder


// attachment rules: stack, srfAttach, allowStack, allowSrfAttach, allowCollision
attachRules = 0,1,0,1,1


// --- standard part parameters ---
mass = 0.3
thermalMassModifier = 4.0
// heatConductivity = 0.06 // half default
emissiveConstant = 0.95
dragModelType = none
maximum_drag = 0.02
minimum_drag = 0.02
angularDrag = 2
crashTolerance = 15
maxTemp = 2500 // = 3400
explosionPotential = 0.1
fuelCrossFeed = True
bulkheadProfiles = srf


//MODULE
//{
//    name = FSengineSounds
//    engage = Firespitter/Sounds/sound_fspropstart
//    //running =
//    power = Firespitter/Sounds/sound_fspropidle
//    //disengage =
//    //flameout =
//    //warning = Firespitter/Sounds/sound_fsheatDing
//    powerPitchBase = 1.0
//    thrustAddedToPitch = 0.5
//    powerFadeInSpeed = 0.005
//    powerFadeInDelay = 0.5
//    powerLowerThreshold = 0.0
//    powerVolume = 1.0
//    engageVolume = 1.0
//    warningSoundThreshold = 0.8
//    warningCooldownTime = 2.0
//    randomStartDelay = 1.0 //for playing engines slightly out of sync
//}


MODULE
{
    name = FlagDecal
    textureQuadName = flagObj
}


MODULE
{
    name = ModuleEnginesFX
    //engineID = Cruise
    thrustVectorTransformName = thrustTransform1
    exhaustDamage = False
    ignitionThreshold = 0.1
    minThrust = 0
    maxThrust = 100
    heatProduction = 10
    useEngineResponseTime = True
    engineAccelerationSpeed = 0.10
    engineDecelerationSpeed = 0.25
    //fxOffset = 0, 0, 0.74
    flameoutEffectName = flameout
    powerEffectName = running_thrust
    engageEffectName = engage
    disengageEffectName = disengage
    spoolEffectName = running_turbine
    engineSpoolIdle = 0.05
    engineSpoolTime = 2.0
    EngineType = LiquidFuel
    useVelocityCurve = True
    PROPELLANT
    {
        name = LiquidFuel
        ratio = 1
        DrawGauge = True
    }
    PROPELLANT
    {
        name = IntakeAir
        ratio = 15
    }
    atmosphereCurve
    {
        key = 0 100
        key = 0.45 800
        key = 1 1200
    }
    velocityCurve
    {
        key = 500 0 0 0
        key = 425 0.2 0 0
        key = 0 1 0 0
    }

}


MODULE
{
    name = ModuleSurfaceFX
    thrustProviderModuleIndex = 1
    fxMax = 0.5
    maxDistance = 10
    falloff = 2
    thrustTransformName = thrustTransform1
}


EFFECTS
{        
    running_thrust
    {            
        AUDIO
        {
            channel = Ship
            clip = sound_jet_deep
            volume = 0.0 0.0
            volume = 0.05 0.4
            volume = 1.0 1.0
            pitch = 0.0 0.6
            pitch = 1.0 1.0
            loop = true
        }
        PREFAB_PARTICLE
        {
            prefabName = fx_smokeTrail_light
            transformName = thrustTransform1
            emission = 0.0 0.0
            emission = 0.05 0.0
            emission = 0.075 0.25
            emission = 1.0 1.25
            speed = 0.0 0.25
            speed = 1.0 1.0
            localOffset = 0, 0, 1
            localRotation = 1, 0, 0, -90
        }                    
    }
    running_turbine
    {
        AUDIO
        {
            channel = Ship
            clip = sound_jet_low
            volume = 0.0 0.0
            volume = 0.05 0.7
            volume = 1.0 1.0
            pitch = 0.0 0.4
            pitch = 0.05 0.5
            pitch = 1.0 1.0
            loop = true
        }
    }
    engage
    {
        AUDIO
        {
            channel = Ship
            clip = sound_vent_medium
            volume = 1.0
            pitch = 2.0
            loop = false
        }
    }
    disengage
    {
        AUDIO
        {
            channel = Ship
            clip = sound_vent_soft
            volume = 1.0
            pitch = 2.0
            loop = false
        }
    }
    flameout
    {
        PREFAB_PARTICLE
        {
            prefabName = fx_exhaustSparks_flameout_2
            transformName = thrustTransform1
            oneShot = true
        }
        AUDIO
        {
            channel = Ship
            clip = sound_explosion_low
            volume = 1.0
            pitch = 2.0
            loop = false
        }
    }
}


MODULE
{
  name = ModuleResourceIntake
  resourceName = IntakeAir
  checkForOxygen = false
  area = 0.03
  intakeSpeed = 50
  intakeTransformName = thrustTransform1 //Intake  
}


RESOURCE
{
    name = IntakeAir
    amount = 0
    maxAmount = 15.0
}


MODULE
{
    name = FSplanePropellerSpinner
    propellerName = BladeSpinner
    rotationSpeed = -1000
    windmillRPM = 0.1
    spinUpTime = 12.0
    useRotorDiscSwap = 0
    rotorDiscFadeInStart = 0.5
    rotorDiscFadeInEnd = 0.5
    rotorDiscSpeed = 30
    rotorDiscName = blur
    blade1 = Blade
}


MODULE
{
    name = FScopterThrottle
}


MODULE
{
    name = FSVTOLrotator
    deployedAngle = 90 //the starting max value
    maxDownAngle = -90 // Allowed rotation below the default parked state
    stepAngle = 22.5 // How much each action group button press will rotate the engine
    targetPartObject = FanVTOLsection
    availableAngles1 =    90, 0, 0 //max three values, use 0 to skip the value and shorten the list. The first value is the default, so smaller than default values should be the final numbers.
    availableAngles2 =    0, 0, 0 // more angles, for a max of 6
    startInverted = True
    invertYaw = True
}


 MODULE
{
    name = FSpropellerAtmosphericNerf
    disableAtmosphericNerf = true
}


//MODULE
//{
//    name = FSswitchEngineThrustTransform
//    defaultTTName = thrustTransform1
//    alternateTTName = thrustTransform2
//    useNamedAlternate = 1
//}


MODULE
{
    name = FSalternator
    resourceName = ElectricCharge
    chargeRate = 0.01
}


MODULE
{
    name = FSengineMenuCleaner
}


MODULE
{
    name = ModuleLiftingSurface
    useInternalDragModel = True
    deflectionLiftCoeff = 2.0
    dragAtMaxAoA = 0.6
    dragAtMinAoA = 0.0
}


}

Part stats in the SPH (sorry for the large image, hard to read otherwise):

Edited May 9, 2015 by Quiznos323

[NathanKell]

You'll want to use a constant atmosphereCurve, a nearly linear atmCurve, and a velCurve that starts at 1.0 and drops down to about 0.05 at mach 1.0.

[Quiznos323]

You'll want to use a constant atmosphereCurve, a nearly linear atmCurve, and a velCurve that starts at 1.0 and drops down to about 0.05 at mach 1.0.

Thanks! I'm getting much better results now.