diff --git a/Source/Tech Tree/Parts Browser/data/SXT.json b/Source/Tech Tree/Parts Browser/data/SXT.json
index 99ac80dc94..ec216f69d7 100644
--- a/Source/Tech Tree/Parts Browser/data/SXT.json	
+++ b/Source/Tech Tree/Parts Browser/data/SXT.json	
@@ -8,9 +8,9 @@
         "entry_cost": 31500,
         "category": "FLIGHT",
         "info": "Cockpit",
-        "year": "1967",
-        "technology": "advancedJetEngines",
-        "era": "05-LUNAR",
+        "year": "1965",
+        "technology": "prototypeSpaceplanes",
+        "era": "02-SAT",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -141,9 +141,9 @@
         "entry_cost": 4000,
         "category": "FLIGHT",
         "info": "Hull",
-        "year": "1968",
-        "technology": "advancedJetEngines",
-        "era": "05-LUNAR",
+        "year": "1965",
+        "technology": "prototypeSpaceplanes",
+        "era": "02-SAT",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -164,9 +164,9 @@
         "entry_cost": 5000,
         "category": "FLIGHT",
         "info": "Hull",
-        "year": "1968",
-        "technology": "advancedJetEngines",
-        "era": "05-LUNAR",
+        "year": "1965",
+        "technology": "prototypeSpaceplanes",
+        "era": "02-SAT",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -189,9 +189,9 @@
         "entry_cost": 64000,
         "category": "FLIGHT",
         "info": "Hull",
-        "year": "1968",
-        "technology": "advancedJetEngines",
-        "era": "05-LUNAR",
+        "year": "1965",
+        "technology": "prototypeSpaceplanes",
+        "era": "02-SAT",
         "ro": true,
         "orphan": false,
         "rp0_conf": false,
@@ -1065,9 +1065,9 @@
         "entry_cost": 106400,
         "category": "FLIGHT",
         "info": "Cockpit",
-        "year": "1969",
-        "technology": "advancedJetEngines",
-        "era": "05-LUNAR",
+        "year": "1965",
+        "technology": "prototypeSpaceplanes",
+        "era": "02-SAT",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -1753,7 +1753,7 @@
         "category": "FLIGHT",
         "info": "Cockpit",
         "year": "1986",
-        "technology": "refinedTurbofans",
+        "technology": "improvedSpaceplanes",
         "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
@@ -1782,7 +1782,7 @@
         "category": "FLIGHT",
         "info": "Tail",
         "year": "1986",
-        "technology": "refinedTurbofans",
+        "technology": "improvedSpaceplanes",
         "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
@@ -1805,7 +1805,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1986",
-        "technology": "refinedTurbofans",
+        "technology": "improvedSpaceplanes",
         "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
@@ -1828,7 +1828,7 @@
         "category": "FLIGHT",
         "info": "Cockpit",
         "year": "1986",
-        "technology": "refinedTurbofans",
+        "technology": "improvedSpaceplanes",
         "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
@@ -1857,7 +1857,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1986",
-        "technology": "refinedTurbofans",
+        "technology": "improvedSpaceplanes",
         "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
@@ -1880,7 +1880,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1986",
-        "technology": "refinedTurbofans",
+        "technology": "improvedSpaceplanes",
         "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
@@ -2630,4 +2630,4 @@
         "identical_part_name": "",
         "module_tags": []
     }
-]
\ No newline at end of file
+]
diff --git a/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json b/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json
index 17f186467d..2abffa4cf8 100644
--- a/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json	
+++ b/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json	
@@ -78,9 +78,9 @@
         "entry_cost": 400,
         "category": "FLIGHT",
         "info": "Control Surface",
-        "year": "1964",
-        "technology": "advancedJetEngines",
-        "era": "04-ADV",
+        "year": "1965",
+        "technology": "prototypeSpaceplanes",
+        "era": "02-SAT",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -1042,9 +1042,9 @@
         "entry_cost": 400,
         "category": "FLIGHT",
         "info": "Intake",
-        "year": "2000",
-        "technology": "scramjetEngines",
-        "era": "02-SAT",
+        "year": "1996",
+        "technology": "improvedSpaceplanes",
+        "era": "08-LONGTERM",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -3791,7 +3791,7 @@
         "category": "FLIGHT",
         "info": "Control Surface",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -3813,7 +3813,7 @@
         "category": "FLIGHT",
         "info": "Wing",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -3835,7 +3835,7 @@
         "category": "FLIGHT",
         "info": "Tail",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5502,7 +5502,7 @@
         "category": "FLIGHT",
         "info": "Cargo",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "rp0": true,
@@ -5525,7 +5525,7 @@
         "category": "FLIGHT",
         "info": "Cargo",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "rp0": true,
@@ -5574,7 +5574,7 @@
         "category": "FLIGHT",
         "info": "Cockpit",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "rp0": true,
@@ -5601,7 +5601,7 @@
         "category": "FLIGHT",
         "info": "Cockpit",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "rp0": true,
@@ -5650,9 +5650,9 @@
         "entry_cost": 40000,
         "category": "FLIGHT",
         "info": "Probe",
-        "year": "1972",
-        "technology": "efficientSupersonic",
-        "era": "06-STATION",
+        "year": "1970",
+        "technology": "effectiveSpaceplanes",
+        "era": "05-LUNAR",
         "ro": true,
         "rp0": true,
         "orphan": false,
@@ -5677,7 +5677,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5699,7 +5699,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5721,7 +5721,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5743,7 +5743,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5765,7 +5765,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5839,7 +5839,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5861,7 +5861,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5883,7 +5883,7 @@
         "category": "FLIGHT",
         "info": "Hull",
         "year": "1970",
-        "technology": "efficientSupersonic",
+        "technology": "effectiveSpaceplanes",
         "era": "05-LUNAR",
         "ro": true,
         "orphan": false,
@@ -5974,7 +5974,7 @@
         "category": "FLIGHT",
         "info": "Shuttle Parts",
         "year": "1981",
-        "technology": "matureTurbofans",
+        "technology": "spaceShuttles",
         "era": "07-SPCPLANES",
         "ro": true,
         "rp0": true,
@@ -6269,9 +6269,9 @@
         "entry_cost": 6500,
         "category": "FLIGHT",
         "info": "Hull",
-        "year": "2004",
-        "technology": "scramjetEngines",
-        "era": "09-INTL",
+        "year": "0",
+        "technology": "unlockParts",
+        "era": "00-START",
         "ro": true,
         "orphan": false,
         "rp0_conf": false,
@@ -9095,4 +9095,4 @@
         "identical_part_name": "",
         "module_tags": []
     }
-]
\ No newline at end of file
+]