diff --git a/luarules/gadgets/gaia_flyby_aircrafts.lua b/luarules/gadgets/gaia_flyby_aircrafts.lua
deleted file mode 100644
index 5fd1c4962e2..00000000000
--- a/luarules/gadgets/gaia_flyby_aircrafts.lua
+++ /dev/null
@@ -1,282 +0,0 @@
-local scavengersAIEnabled = Spring.Utilities.Gametype.IsScavengers()
-
-local ruinSpawnEnabled = false
-if Spring.GetModOptions().ruins == "enabled" or (Spring.GetModOptions().ruins == "scav-only" and scavengersAIEnabled) then
-	ruinSpawnEnabled = true
-end
-
-function gadget:GetInfo()
-    return {
-      name      = "flyby aircraft spawner",
-      desc      = "123",
-      author    = "Damgam",
-      date      = "2021",
-	  license   = "GNU GPL, v2 or later",
-      layer     = -100,
-      enabled   = ruinSpawnEnabled,
-    }
-end
-
-if not gadgetHandler:IsSyncedCode() then
-	return false
-end
-
-local math_random = math.random
-local GaiaTeamID = Spring.GetGaiaTeamID()
-
-local mapsizex = Game.mapSizeX
-local mapsizez = Game.mapSizeZ
-local mapheightmin, mapheightmax = Spring.GetGroundExtremes()
-
-local lastFlyByFrame = 0
-
-local flyByChance = 900 -- bigger = less
-local minimumFlyByDelay = 60*30 -- seconds*framesPerSecond
-
--- for testing
--- local flyByChance = 1 -- bigger = less
--- local minimumFlyByDelay = 1*30 -- seconds*framesPerSecond
-
-local moveCtrlQueue = {}
-
-local flyByFormations = { -- {x,z}
-    [1] = {
-        {0,0},
-    },
-    [2] = {
-        {0,0},
-        {-64,128},
-        {-64,-128},
-    },
-    [3] = {
-        {0,0},
-        {-64,128},
-        {-64,-128},
-        {-128,-256},
-        {-128,256},
-    },
-    [4] = {
-        {0,0},
-        {-64,128},
-        {-64,-128},
-        {-128,-256},
-        {-128,256},
-        {-192,-384},
-        {-192,384},
-    },
-    [5] = {
-        {0,0},
-        {-64,128},
-        {-64,-128},
-        {-200,0},
-        {-264,128},
-        {-264,-128},
-        {-328,-256},
-        {-328,256},
-    },
-    [6] = {
-        {0,0},
-        {-64,128},
-        {-64,-128},
-        {-128,-256},
-        {-128,256},
-        {-200,0},
-        {-264,128},
-        {-264,-128},
-        {-328,-256},
-        {-328,256},
-        {-392,-384},
-        {-392,384},
-    },
-    [7] = {
-        {0,0},
-        {-64,128},
-        {-64,-128},
-        {-200,0},
-        {-264,128},
-        {-264,-128},
-        {-328,-256},
-        {-328,256},
-        {-400,0},
-        {-464,128},
-        {-464,-128},
-        {-528,-256},
-        {-528,256},
-        {-596,-384},
-        {-596,384},
-    },
-}
-
-local flyByUnits = {
-    "armatlas",
-    "armca",
-    "armfig",
-    "armkam",
-    "armpeep",
-    "armthund",
-    "armaca",
-    "armawac",
-    "armblade",
-    "armbrawl",
-    "armdfly",
-    "armhawk",
-    "armlance",
-    "armliche",
-    "armpnix",
-    "armstil",
-    "armcsa",
-    "armsaber",
-    "armsb",
-    "armseap",
-    "armsehak",
-    "armsfig",
-    "corbw",
-    "corca",
-    "corfink",
-    "corshad",
-    "corvalk",
-    "corveng",
-    "coraca",
-    "corape",
-    "corawac",
-    "corcrw",
-    "corcrwh",
-    "corhurc",
-    "corseah",
-    "cortitan",
-    "corvamp",
-    "corcsa",
-    "corcut",
-    "corhunt",
-    "corsb",
-    "corseap",
-    "corsfig",
-    "legatorpbomber",
-}
-
-function gadget:GameFrame(n)
-    if n%30 == 10 then
-        local flyByRandom = math_random(1,flyByChance)
-        if flyByRandom == 1 and n > lastFlyByFrame+minimumFlyByDelay then
-            lastFlyByFrame = n
-
-            local flipRandom = math_random(0,3)
-
-			local swapXandZ = false
-			local flipXorZ = 1 -- don't
-			local flyByHeading = 16384
-			local flyByPosZ = 0
-			local flyByPosX = 0
-            if flipRandom == 0 then
-                swapXandZ = false
-                flipXorZ = 1 -- don't
-                flyByHeading = 16384
-            end
-            if flipRandom == 1 then
-                swapXandZ = false
-                flipXorZ = -1 -- flip
-                flyByHeading = -16384
-            end
-            if flipRandom == 2 then
-                swapXandZ = true
-                flipXorZ = 1 -- don't
-                flyByHeading = 0
-            end
-            if flipRandom == 3 then
-                swapXandZ = true
-                flipXorZ = -1 -- flip
-                flyByHeading = 32768
-            end
-
-            if swapXandZ == false then
-                flyByPosZ = math_random(-1000,mapsizez+1000)
-                flyByPosX = 0
-            else
-                flyByPosX = math_random(-1000,mapsizex+1000)
-                flyByPosZ = 0
-            end
-
-            local flyByFormation = flyByFormations[math_random(1,#flyByFormations)]
-            local flyByUnit = flyByUnits[math_random(1,#flyByUnits)]
-
-            local speed = UnitDefNames[flyByUnit].speed
-            if not speed or speed < 1 then
-                speed = 1
-            end
-            speed = speed*0.04
-
-            local posx = flyByPosX
-            local posz = flyByPosZ
-            local posy = mapheightmax+math_random(100,1000)
-
-            for i = 1,#flyByFormation do
-                local unit = Spring.CreateUnit(flyByUnit.."_scav", posx, posy, posz, 1, GaiaTeamID)
-				if unit then		-- sometimes nil
-					Spring.SetUnitNoDraw(unit, true)
-					if swapXandZ == false then
-						posx = flyByPosX+(flyByFormation[i][1]*flipXorZ)-15000*flipXorZ
-						posz = flyByPosZ+flyByFormation[i][2]
-					else
-						posx = flyByPosX+flyByFormation[i][2]
-						posz = flyByPosZ+(flyByFormation[i][1]*flipXorZ)-15000*flipXorZ
-					end
-					Spring.MoveCtrl.Enable(unit)
-					Spring.MoveCtrl.SetNoBlocking(unit, true)
-					Spring.MoveCtrl.SetProgressState(unit, "active")
-					Spring.MoveCtrl.SetLimits(unit, -10000, 0, -10000, 10000, 99999, 10000)
-					Spring.MoveCtrl.SetPosition(unit, posx, posy, posz)
-					Spring.MoveCtrl.SetVelocity(unit, speed, 0, 0)
-					Spring.MoveCtrl.Disable(unit)
-
-					Spring.SetUnitMaxHealth(unit, 10000000)
-					Spring.SetUnitHealth(unit, 10000000)
-					Spring.SetUnitStealth(unit, true)
-					Spring.SetUnitNoSelect(unit, true)
-					Spring.SetUnitNoMinimap(unit, true)
-					Spring.SetUnitAlwaysVisible(unit, true)
-					Spring.SetUnitNeutral(unit, true)
-					Spring.GiveOrderToUnit(unit,CMD.FIRE_STATE,{0},0)
-					Spring.GiveOrderToUnit(unit,CMD.MOVE_STATE,{0},0)
-
-					Spring.GiveOrderToUnit(unit, CMD.MOVE, {mapsizex*0.5,posy,mapsizez*0.5}, {})
-
-					moveCtrlQueue[#moveCtrlQueue+1] = {unit, speed, posx, posy, posz, swapXandZ, flipXorZ, flyByHeading}
-				end
-            end
-        end
-    end
-    if n%30 == 9 then
-        if #moveCtrlQueue > 0 then
-            for i = 1, #moveCtrlQueue do
-                local unit = moveCtrlQueue[i][1]
-                local speed = moveCtrlQueue[i][2]
-                local posx = moveCtrlQueue[i][3]
-                local posy = moveCtrlQueue[i][4]
-                local posz = moveCtrlQueue[i][5]
-                local swapXandZ = moveCtrlQueue[i][6]
-                local flipXorZ = moveCtrlQueue[i][7]
-                local flyByHeading = moveCtrlQueue[i][8]
-                Spring.MoveCtrl.Enable(unit)
-                Spring.MoveCtrl.SetPosition(unit, posx, posy, posz)
-                Spring.MoveCtrl.SetRotation(unit, 0, 0, 0)
-                Spring.MoveCtrl.SetHeading(unit, flyByHeading)
-                if swapXandZ == false then
-                    if flipXorZ == 1 then
-                        Spring.MoveCtrl.SetVelocity(unit, speed, 0, 0)
-                    else
-                        Spring.MoveCtrl.SetVelocity(unit, -speed, 0, 0)
-                    end
-                else
-                    if flipXorZ == -1 then
-                        Spring.MoveCtrl.SetVelocity(unit, 0, 0, -speed)
-                    else
-                        Spring.MoveCtrl.SetVelocity(unit, 0, 0, speed)
-                    end
-                end
-
-                Spring.SetUnitNoDraw(unit, false)
-            end
-            moveCtrlQueue = {}
-        end
-    end
-end