diff --git a/GameData/RP-1/Tree/AirlaunchTechlevels.cfg b/GameData/RP-1/Tree/AirlaunchTechlevels.cfg
index a693a03c0d..09ca6bd499 100644
--- a/GameData/RP-1/Tree/AirlaunchTechlevels.cfg
+++ b/GameData/RP-1/Tree/AirlaunchTechlevels.cfg
@@ -45,3 +45,51 @@ PARTUPGRADE
 	manufacturer = Generic
 	description = Airlaunch limits are extended to allow vessels up to 25 t in mass while other limits stay at 15 x 8 x 21 m (width x height x length). Altitude is still limited to 13,750 m and speed to 272 m/s. NOTE: This is not a part you can use, it just symbolizes the new capabilities you can unlock. 
 }
+
+PARTUPGRADE
+{
+	name = airlaunchTL5
+	partIcon = SXTmk3Cockpit52
+	techRequired = hypersonicMetallurgy
+	entryCost = 1
+	cost = 0
+	title = Airlaunch Level 5
+	manufacturer = Generic
+	description = Airlaunch limits are extended to allow vessels up to 30 t in mass while other limits stay at 15 x 8 x 21 m (width x height x length). Altitude is still limited to 13,750 m and speed to 272 m/s. NOTE: This is not a part you can use, it just symbolizes the new capabilities you can unlock. 
+}
+
+PARTUPGRADE
+{
+	name = airlaunchTL6
+	partIcon = 25mKossak
+	techRequired = efficientSupersonic
+	entryCost = 1
+	cost = 0
+	title = Airlaunch Level 6
+	manufacturer = Generic
+	description = Airlaunch limits are extended to allow vessels up to 70 t in mass while other limits stay at 25 x 19 x 39 m (width x height x length). Altitude is still limited to 13,750 m and speed to 272 m/s. NOTE: This is not a part you can use, it just symbolizes the new capabilities you can unlock. 
+}
+
+PARTUPGRADE
+{
+	name = airlaunchTL7
+	partIcon = 25mKossak
+	techRequired = refinedTurbofans
+	entryCost = 1
+	cost = 0
+	title = Airlaunch Level 7
+	manufacturer = Generic
+	description = Airlaunch limits are extended to allow vessels up to 120 t in mass while other limits stay at 25 x 19 x 39 m (width x height x length). Altitude is still limited to 13,750 m and speed to 272 m/s. NOTE: This is not a part you can use, it just symbolizes the new capabilities you can unlock. 
+}
+
+PARTUPGRADE
+{
+	name = airlaunchTL8
+	partIcon = SXTOsaulNoseCockpitAn225
+	techRequired = scramjetEngines
+	entryCost = 1
+	cost = 0
+	title = Airlaunch Level 8
+	manufacturer = Generic
+	description = Airlaunch limits are extended to allow vessels up to 275 t in mass while other limits stay at 25 x 19 x 44 m (width x height x length). Altitude is still limited to 13,750 m and speed to 272 m/s. NOTE: This is not a part you can use, it just symbolizes the new capabilities you can unlock. 
+}
diff --git a/GameData/RP-1/Tree/RP0TechTree.cfg b/GameData/RP-1/Tree/RP0TechTree.cfg
index 64b3b5e6e6..08adcc7d50 100644
--- a/GameData/RP-1/Tree/RP0TechTree.cfg
+++ b/GameData/RP-1/Tree/RP0TechTree.cfg
@@ -117,31 +117,31 @@
 			lineTo = LEFT
 		}
 	}
-	RDNode
-	{
-		id = highSpeedFlight
-		title = High Speed Flight
-		description = High Speed Flight (1958-1963)
-		cost = 10
-		hideEmpty = False
-		nodeName = highSpeedFlight
-		anyToUnlock = False
-		icon = RP-1/Tree/Icons/rp0_icon_mirage4
-		pos = -3292,2090,-1
-		scale = 0.6
-		Parent
-		{
-			parentID = matureSupersonic
-			lineFrom = RIGHT
-			lineTo = LEFT
-		}
-		Parent
-		{
-			parentID = materialsScienceSatellite
-			lineFrom = RIGHT
-			lineTo = LEFT
-		}
-	}
+	//RDNode
+	//{
+		//id = highSpeedFlight
+		//title = High Speed Flight
+		//description = High Speed Flight (1958-1963)
+		//cost = 10
+		//hideEmpty = False
+		//nodeName = highSpeedFlight
+		//anyToUnlock = False
+		//icon = RP-1/Tree/Icons/rp0_icon_mirage4
+		//pos = -3292,2090,-1
+		//scale = 0.6
+		//Parent
+		//{
+			//parentID = matureSupersonic
+			//lineFrom = RIGHT
+			//lineTo = LEFT
+		//}
+		//Parent
+		//{
+			//parentID = materialsScienceSatellite
+			//lineFrom = RIGHT
+			//lineTo = LEFT
+		//}
+	//}
 	RDNode
 	{
 		id = advancedJetEngines
@@ -156,7 +156,7 @@
 		scale = 0.6
 		Parent
 		{
-			parentID = highSpeedFlight
+			parentID = hypersonicMetallurgy
 			lineFrom = RIGHT
 			lineTo = LEFT
 		}
@@ -385,7 +385,7 @@
 		id = hypersonicFlightRP0
 		title = Hypersonic Flight
 		description = Hypersonic Flight (1959)
-		cost = 12
+		cost = 15
 		hideEmpty = False
 		nodeName = hypersonicFlightRP0
 		anyToUnlock = False
@@ -407,15 +407,15 @@
 	}
 	RDNode
 	{
-		id = suborbitalSpaceplanes
-		title = Suborbital Spaceplanes
-		description = Suborbital Spaceplanes (1962)
-		cost = 10
+		id = hypersonicMetallurgy
+		title = Hypersonic Metallurgy
+		description = Hypersonic Metallurgy (1963)
+		cost = 20
 		hideEmpty = False
-		nodeName = suborbitalSpaceplanesRP0
+		nodeName = hypersonicMetallurgyRP0
 		anyToUnlock = False
 		icon = RP-1/Tree/Icons/rp0_icon_x15
-		pos = -2867,2005,-1
+		pos = -2782,2005,-1
 		scale = 0.6
 		Parent
 		{
@@ -442,46 +442,52 @@
 			lineTo = LEFT
 		}
 	}
-	RDNode
-	{
-		id = reusableTPS
-		title = Reusable Thermal Protection Systems
-		description = Reusable Thermal Protection Systems (1964)
-		cost = 20
-		hideEmpty = False
-		nodeName = hypersonicFlightRP0
-		anyToUnlock = True
-		icon = RP-1/Tree/Icons/rp0_icon_x15
-		pos = -2612,2005,-1
-		scale = 0.6
-		Parent
-		{
-			parentID = suborbitalSpaceplanes
-			lineFrom = RIGHT
-			lineTo = LEFT
-		}
-		Parent
-		{
+	//RDNode
+	//{
+		//id = reusableTPS
+		//title = Reusable Thermal Protection Systems
+		//description = Reusable Thermal Protection Systems (1964)
+		//cost = 20
+		//hideEmpty = False
+		//nodeName = hypersonicFlightRP0
+		//anyToUnlock = True
+		//icon = RP-1/Tree/Icons/rp0_icon_x15
+		//pos = -2612,2005,-1
+		//scale = 0.6
+		//Parent
+		//{
+			//parentID = suborbitalSpaceplanes
+			//lineFrom = RIGHT
+			//lineTo = LEFT
+		//}
+		//Parent
+		//{
 			parentID = basicCapsules
 			lineFrom = RIGHT
 			lineTo = LEFT
-		}
-	}
+		//}
+	//}
 	RDNode
 	{
 		id = prototypeSpaceplanes
 		title = Prototype Spaceplanes
 		description = Prototype Spaceplanes (1965)
-		cost = 15
+		cost = 25
 		hideEmpty = False
 		nodeName = prototypeSpaceplanes
-		anyToUnlock = False
+		anyToUnlock = True
 		icon = RP-1/Tree/Icons/rp0_icon_x20
 		pos = -2527,2005,-1
 		scale = 0.6
 		Parent
 		{
-			parentID = reusableTPS
+			parentID = hypersonicMetallurgy
+			lineFrom = RIGHT
+			lineTo = LEFT
+		}
+		Parent
+		{
+			parentID = basicCapsules
 			lineFrom = RIGHT
 			lineTo = LEFT
 		}
diff --git a/GameData/RP-1/Tree/TREE-Parts.cfg b/GameData/RP-1/Tree/TREE-Parts.cfg
index 39ea96d10e..d3e79b99ea 100644
--- a/GameData/RP-1/Tree/TREE-Parts.cfg
+++ b/GameData/RP-1/Tree/TREE-Parts.cfg
@@ -559,7 +559,7 @@
 }
 @PART[B9_Aero_Wing_Procedural_TypeA]:FOR[xxxRP0]
 {
-    %TechRequired = reusableTPS
+    %TechRequired = hypersonicMetallurgy
     %cost = 0
     %entryCost = 15000
     RP0conf = true
@@ -567,7 +567,7 @@
 }
 @PART[B9_Aero_Wing_Procedural_TypeB]:FOR[xxxRP0]
 {
-    %TechRequired = reusableTPS
+    %TechRequired = hypersonicMetallurgy
     %cost = 0
     %entryCost = 15000
     RP0conf = true
@@ -575,7 +575,7 @@
 }
 @PART[B9_Aero_Wing_Procedural_TypeC]:FOR[xxxRP0]
 {
-    %TechRequired = reusableTPS
+    %TechRequired = hypersonicMetallurgy
     %cost = 0
     %entryCost = 15000
     RP0conf = true
@@ -1979,7 +1979,7 @@
 }
 @PART[GearLarge]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 15
     %entryCost = 300
     RP0conf = true
@@ -1987,7 +1987,7 @@
 }
 @PART[GearMedium]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 10
     %entryCost = 200
     RP0conf = true
@@ -2530,7 +2530,7 @@
 }
 @PART[IntakeRadialLong]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 22
     %entryCost = 200
     RP0conf = true
@@ -2836,7 +2836,7 @@
 }
 @PART[KF-ALG-Large]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 15
     %entryCost = 300
     RP0conf = true
@@ -5875,7 +5875,7 @@
 }
 @PART[RO-Atar09B]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 617
     %entryCost = 0
     RP0conf = true
@@ -5899,7 +5899,7 @@
 }
 @PART[RO-Avon200]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 532
     %entryCost = 0
     RP0conf = true
@@ -6283,7 +6283,7 @@
 }
 @PART[RO-J85GE5]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 158
     %entryCost = 0
     RP0conf = true
@@ -6604,7 +6604,7 @@
 }
 @PART[RO-ProcTankSpaceplane]:FOR[xxxRP0]
 {
-    %TechRequired = reusableTPS
+    %TechRequired = hypersonicMetallurgy
     %cost = 0
     %entryCost = 40000
     RP0conf = true
@@ -6623,7 +6623,7 @@
 }
 @PART[RO-R11F]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 368
     %entryCost = 0
     RP0conf = true
@@ -6691,7 +6691,7 @@
 }
 @PART[RO-RD012]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 198
     %entryCost = 0
     RP0conf = true
@@ -6813,7 +6813,7 @@
 }
 @PART[RO-RJ59]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 235
     %entryCost = 0
     RP0conf = true
@@ -7276,7 +7276,7 @@
 }
 @PART[RO-jt8d1]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 290
     %entryCost = 0
     RP0conf = true
@@ -7284,7 +7284,7 @@
 }
 @PART[RO-model304]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 663
     %entryCost = 0
     RP0conf = true
@@ -14309,7 +14309,7 @@
 }
 @PART[ROT-MiscTank-Shielded]:FOR[xxxRP0]
 {
-    %TechRequired = reusableTPS
+    %TechRequired = hypersonicMetallurgy
     %cost = 0
     %entryCost = 40000
     RP0conf = true
@@ -18789,7 +18789,7 @@
 }
 @PART[SXTNK12M]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 400
     %entryCost = 8000
     RP0conf = true
@@ -20878,7 +20878,7 @@
 }
 @PART[aje_atar]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 480
     %entryCost = 0
     RP0conf = true
@@ -23895,7 +23895,7 @@
 }
 @PART[f5jet]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 158
     %entryCost = 0
     RP0conf = true
@@ -25331,7 +25331,7 @@
 }
 @PART[miniJetEngine]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 158
     %entryCost = 0
     RP0conf = true
@@ -25390,7 +25390,7 @@
 }
 @PART[mk2CargoBayL]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 2500
     %entryCost = 100000
     RP0conf = true
@@ -25398,7 +25398,7 @@
 }
 @PART[mk2CargoBayS]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1250
     %entryCost = 100000
     RP0conf = true
@@ -25418,7 +25418,7 @@
 }
 @PART[mk2Cockpit_Standard]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 15000
     %entryCost = 300000
     RP0conf = true
@@ -25432,7 +25432,7 @@
 }
 @PART[mk2CrewCabin]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 6000
     %entryCost = 120000
     RP0conf = true
@@ -25446,7 +25446,7 @@
 }
 @PART[mk2DockingPort]:FOR[xxxRP0]
 {
-    %TechRequired = spaceStationControl
+    %TechRequired = effectiveSpaceplanes
     %cost = 4000
     %entryCost = 80000
     RP0conf = true
@@ -25454,7 +25454,7 @@
 }
 @PART[mk2DroneCore]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 2000
     %entryCost = 40000
     RP0conf = true
@@ -25466,7 +25466,7 @@
 }
 @PART[mk2Fuselage]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 18500
     RP0conf = false
@@ -25474,7 +25474,7 @@
 }
 @PART[mk2FuselageLongLFO]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 18500
     RP0conf = false
@@ -25482,7 +25482,7 @@
 }
 @PART[mk2FuselageShortLFO]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 18500
     RP0conf = false
@@ -25490,7 +25490,7 @@
 }
 @PART[mk2FuselageShortLiquid]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 18500
     RP0conf = false
@@ -25498,7 +25498,7 @@
 }
 @PART[mk2FuselageShortMono]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 18500
     RP0conf = false
@@ -25532,7 +25532,7 @@
 }
 @PART[mk2SpacePlaneAdapter]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 14600
     RP0conf = false
@@ -25540,7 +25540,7 @@
 }
 @PART[mk2_1m_AdapterLong]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 17500
     RP0conf = false
@@ -25548,7 +25548,7 @@
 }
 @PART[mk2_1m_Bicoupler]:FOR[xxxRP0]
 {
-    %TechRequired = efficientSupersonic
+    %TechRequired = effectiveSpaceplanes
     %cost = 1
     %entryCost = 19800
     RP0conf = false
@@ -27075,7 +27075,7 @@
 }
 @PART[ramAirIntake]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 50
     %entryCost = 800
     RP0conf = true
@@ -33900,7 +33900,7 @@
 }
 @PART[vtolTanto]:FOR[xxxRP0]
 {
-    %TechRequired = highSpeedFlight
+    %TechRequired = hypersonicFlightRP0
     %cost = 401
     %entryCost = 0
     RP0conf = true