BDB Engines Config

GameData/RealismOverhaul/Engine_Configs/RL20X_Config.cfg

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+//	==================================================
+//	Engine: RL20P-3X
+//
+//	Manufacturer: Pratt & Whitney
+//
+//	=================================================================================
+//	RL20P-3X
+//	With nozzle extension
+//
+//	Dry Mass: 1800 kg	a little heavier
+//	Thrust (SL): 1112 kN
+//	Thrust (Vac): 1255.6 kN
+//	ISP: 405 SL / 429 Vac (retracted)	calculated with RPA
+//	ISP: 342 SL / 457 Vac (extended)	calculated with RPA
+//	Burn Time: 580		same as J-2
+//	Chamber Pressure: 20.68 MPa
+//	Propellant: LOx / LH2
+//	Prop Ratio: 5.5		same as late J-2?
+//	Throttle: N/A
+//	Nozzle Ratio: 20.5/98.6
+//	Ignitions: 3	same as J-2?
+//	=================================================================================
+
+//	Sources:
+
+//		https://www.alternatewars.com/BBOW/Space_Engines/Pratt_Engines.htm
+//		https://www.alternatewars.com/BBOW/Space_Engines/RL20_2Position.png
+
+//	Used by:
+
+//	Notes:
+
+//	==================================================
+@PART[*]:HAS[#engineType[RL20X]]:FOR[RealismOverhaulEngines]
+{
+	%title = RL-20P-3X Multi Mode Engine
+	%manufacturer = #roMfrPW
+	%description = An early Hydrolox Staged Combustion engine designed to be used at sea level and in vaccum with a deep throttle range.
+
+	%specLevel = concept	//pretty sure this was only ever a mockup
+
+	@MODULE[ModuleEngines*]
+	{
+		@EngineType = LiquidEngine
+	}
+
+	!MODULE[ModuleAlternator],*{}
+	!MODULE[ModuleEngineConfigs],*{}
+	!MODULE[ModuleBimodalEngineConfigs],*{}
+	!RESOURCE,*{}
+
+	@MODULE[ModuleGimbal]
+	{
+		@gimbalRange = 8
+		%useGimbalResponseSpeed = true
+		%gimbalResponseSpeed = 16
+	}
+
+	MODULE
+	{
+		name = ModuleBimodalEngineConfigs
+		type = ModuleEngines
+		configuration = RL20P-3X
+		origMass = 1.8
+		modded = False
+
+		CONFIG
+		{
+			name = RL20P-3X
+			specLevel = concept
+			minThrust = 117.87 //10%
+			maxThrust = 1178.7
+			heatProduction = 100
+			massMult = 1.0
+			ullage = True
+			pressureFed = False
+			ignitions = 3
+
+			IGNITOR_RESOURCE
+			{
+				name = ElectricCharge
+				amount = 0.25
+			}
+			PROPELLANT
+			{
+				name = LqdHydrogen
+				ratio = 0.7454
+				DrawGauge = True
+			}
+			PROPELLANT
+			{
+				name = LqdOxygen
+				ratio = 0.2546
+			}
+			atmosphereCurve
+			{
+				key = 0 429
+				key = 1 405
+			}
+			SUBCONFIG
+			{
+				name = RL20P-3X-Extended
+				minThrust = 125.56 //10%
+				maxThrust = 1255.6
+				atmosphereCurve
+				{
+					key = 0 457 // Expansion Ratio of ~98.6
+					key = 1 342
+				}
+			}
+			TESTFLIGHT:NEEDS[TestLite|TestFlight]
+			{
+				testedBurnTime = 3600
+				ratedBurnTime = 580
+				overburnPenalty = 1.5
+				safeOverburn = true
+
+				// assume roughly exponential relationship between chamber pressure and lifespan
+				thrustModifier
+				{
+					key = 0.00 0.05 0 0
+					key = 1.00 1.00 3 3
+				}
+
+				ignitionReliabilityStart = 0.955882
+				ignitionReliabilityEnd = 0.991176
+				cycleReliabilityStart = 0.897059
+				cycleReliabilityEnd = 0.979412
+				techTransfer = RL20P-3:100
+			}
+		}
+	}
+}

GameData/RealismOverhaul/Engine_Configs/RL20_Config.cfg

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+//	==================================================
+//	Engine: RL20P-3
+//
+//	Manufacturer: Pratt & Whitney
+//
+//	=================================================================================
+//	RL20P-3
+//	Original concept
+//
+//	Dry Mass: 1660 kg	halfway between J-2S and LR129
+//	Thrust (SL): 1112 kN
+//	Thrust (Vac): 1178.7 kN
+//	ISP: 405 SL / 429 Vac	calculated with RPA
+//	Burn Time: 580		same as J-2
+//	Chamber Pressure: 20.68 MPa
+//	Propellant: LOx / LH2
+//	Prop Ratio: 5.5		same as late J-2?
+//	Throttle: N/A
+//	Nozzle Ratio: 20.5
+//	Ignitions: 3	same as J-2?
+//	=================================================================================
+
+//	Sources:
+
+//		https://www.alternatewars.com/BBOW/Space_Engines/Pratt_Engines.htm
+//		https://www.alternatewars.com/BBOW/Space_Engines/RL20_2Position.png
+
+//	Used by:
+
+//	Notes:
+
+//	==================================================
+@PART[*]:HAS[#engineType[RL20]]:FOR[RealismOverhaulEngines]
+{
+	%title = RL20P-3
+	%manufacturer = #roMfrPW
+	%description = An early Hydrolox Staged Combustion engine designed to be used at sea level and in vaccum with a deep throttle range.
+
+	%specLevel = concept	//pretty sure this was only ever a mockup
+
+	@MODULE[ModuleEngines*]
+	{
+		@EngineType = LiquidEngine
+	}
+
+	!MODULE[ModuleAlternator],*{}
+	!MODULE[ModuleEngineConfigs],*{}
+	!MODULE[ModuleBimodalEngineConfigs],*{}
+	!RESOURCE,*{}
+
+	@MODULE[ModuleGimbal]
+	{
+		@gimbalRange = 8
+		%useGimbalResponseSpeed = true
+		%gimbalResponseSpeed = 16
+	}
+
+	MODULE
+	{
+		name = ModuleEngineConfigs
+		type = ModuleEngines
+		configuration = RL20P-3
+		origMass = 1.66
+		modded = False
+
+		CONFIG
+		{
+			name = RL20P-3
+			specLevel = concept
+			minThrust = 117.87 //10%
+			maxThrust = 1178.7
+			heatProduction = 100
+			massMult = 1.0
+			ullage = True
+			pressureFed = False
+			ignitions = 3
+
+			IGNITOR_RESOURCE
+			{
+				name = ElectricCharge
+				amount = 0.25
+			}
+			PROPELLANT
+			{
+				name = LqdHydrogen
+				ratio = 0.7454
+				DrawGauge = True
+			}
+			PROPELLANT
+			{
+				name = LqdOxygen
+				ratio = 0.2546
+			}
+			atmosphereCurve
+			{
+				key = 0 429
+				key = 1 405
+			}
+			TESTFLIGHT:NEEDS[TestLite|TestFlight]
+			{
+				testedBurnTime = 3600
+				ratedBurnTime = 580
+				overburnPenalty = 1.5
+				safeOverburn = true
+
+				// assume roughly exponential relationship between chamber pressure and lifespan
+				thrustModifier
+				{
+					key = 0.00 0.05 0 0
+					key = 1.00 1.00 3 3
+				}
+
+				ignitionReliabilityStart = 0.955882
+				ignitionReliabilityEnd = 0.991176
+				cycleReliabilityStart = 0.897059
+				cycleReliabilityEnd = 0.979412
+				techTransfer = RL20P-3X:100
+			}
+		}
+	}
+}