diff --git a/OPTSpacePlaneParts/OPTSpacePlaneParts-1-3.1.1.ckan b/OPTSpacePlaneParts/OPTSpacePlaneParts-1-3.1.1.ckan
new file mode 100644
index 0000000000..0a888c69a8
--- /dev/null
+++ b/OPTSpacePlaneParts/OPTSpacePlaneParts-1-3.1.1.ckan
@@ -0,0 +1,64 @@
+{
+    "spec_version": "v1.4",
+    "identifier": "OPTSpacePlaneParts",
+    "name": "OPT Spaceplane (Legacy)",
+    "abstract": "Retired parts such as Stail fuselage, and expansion pack containing many wings and engines",
+    "author": [
+        "moobien",
+        "kyeon",
+        "JadeOfMaar"
+    ],
+    "version": "1:3.1.1",
+    "ksp_version": "1.11.1",
+    "license": "CC-BY-NC-SA-4.0",
+    "resources": {
+        "homepage": "http://forum.kerbalspaceprogram.com/index.php?/topic/87956-*",
+        "spacedock": "https://spacedock.info/mod/711/Orbit%20Portal%20Technology%20[OPT]%20Spaceplane%20Parts",
+        "remote-avc": "https://raw.githubusercontent.com/StoneBlue/OPT_Streamlined/master/GameData/OPT_Legacy/Version/OPTLegacy.version",
+        "x_screenshot": "https://spacedock.info/content/moobien_3210/Orbit_Portal_Technology_OPT_Spaceplane_Parts/Orbit_Portal_Technology_OPT_Spaceplane_Parts-1575436631.108278.jpg"
+    },
+    "tags": [
+        "parts",
+        "crewed"
+    ],
+    "localizations": [
+        "en-us"
+    ],
+    "depends": [
+        {
+            "name": "ModuleManager"
+        },
+        {
+            "name": "OPTReconfig"
+        }
+    ],
+    "recommends": [
+        {
+            "name": "KerbalFoundriesContinued"
+        },
+        {
+            "name": "OPTSpacePlaneMain"
+        },
+        {
+            "name": "RasterPropMonitor"
+        },
+        {
+            "name": "KerbalActuators"
+        }
+    ],
+    "install": [
+        {
+            "find": "OPT_Legacy",
+            "install_to": "GameData"
+        }
+    ],
+    "download": "https://spacedock.info/mod/711/Orbit%20Portal%20Technology%20%5BOPT%5D%20Spaceplane%20Parts/download/3.1.1",
+    "download_size": 104259787,
+    "download_hash": {
+        "sha1": "AE0F374E13D13292592780A6F9A85589AEB64F31",
+        "sha256": "49EE25B85AC64C06C62D185665BB5E2DA289B2BB767828297190DABA8AD048DD"
+    },
+    "download_content_type": "application/zip",
+    "release_date": "2021-03-07T03:34:10.62291+00:00",
+    "x_generated_by": "netkan"
+}