diff --git a/build.properties b/build.properties
index f171c953..1e4f21c8 100644
--- a/build.properties
+++ b/build.properties
@@ -1,7 +1,7 @@
 minecraft.version=1.7.10
 forge.version=10.13.4.1566-1.7.10
 
-gt.version=5.09.27.20
+gt.version=5.09.27.21
 
 ae2.version=rv2-beta-33
 applecore.version=1.7.10-1.2.1+107.59407
diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java
index 4de9abb4..a3bd1c70 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java
@@ -128,6 +128,7 @@ public abstract class GT_MetaTileEntity_LargeTurbine extends GT_MetaTileEntity_M
 
     @Override
     public boolean checkRecipe(ItemStack aStack) {
+    	if(aStack==null || !(aStack.getItem() instanceof GT_MetaGenerated_Tool)  || aStack.getItemDamage() < 170 || aStack.getItemDamage() >179)return false;
         ArrayList<FluidStack> tFluids = getStoredFluids();
         if (tFluids.size() > 0) {
             if (baseEff == 0 || optFlow == 0 || counter >= 1000 || this.getBaseMetaTileEntity().hasWorkJustBeenEnabled()
diff --git a/src/main/java/gregtech/loaders/postload/GT_MachineRecipeLoader.java b/src/main/java/gregtech/loaders/postload/GT_MachineRecipeLoader.java
index a125df89..93f8d01d 100644
--- a/src/main/java/gregtech/loaders/postload/GT_MachineRecipeLoader.java
+++ b/src/main/java/gregtech/loaders/postload/GT_MachineRecipeLoader.java
@@ -1164,7 +1164,8 @@ public class GT_MachineRecipeLoader implements Runnable {
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Steel, 6L), ItemList.RC_Rail_Standard.get(8L, new Object[0]), 800, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.StainlessSteel, 6L), ItemList.RC_Rail_Standard.get(12L, new Object[0]), 1200, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Titanium, 6L), ItemList.RC_Rail_Standard.get(16L, new Object[0]), 1600, 15);
-        GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.TungstenSteel, 6L), ItemList.RC_Rail_Reinforced.get(24L, new Object[0]), 2400, 30);
+        GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.TungstenSteel, 6L), ItemList.RC_Rail_Reinforced.get(24L, new Object[0]), 1200, 64);
+        GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Iridium, 3L), ItemList.RC_Rail_Reinforced.get(24L, new Object[0]), 600, 64);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Aluminium, 12L), ItemList.RC_Rebar.get(4L, new Object[0]), 200, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Iron, 12L), ItemList.RC_Rebar.get(8L, new Object[0]), 400, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.WroughtIron, 12L), ItemList.RC_Rebar.get(10L, new Object[0]), 400, 15);
@@ -1173,6 +1174,7 @@ public class GT_MachineRecipeLoader implements Runnable {
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.StainlessSteel, 12L), ItemList.RC_Rebar.get(24L, new Object[0]), 1200, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Titanium, 12L), ItemList.RC_Rebar.get(32L, new Object[0]), 1600, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.TungstenSteel, 12L), ItemList.RC_Rebar.get(48L, new Object[0]), 2400, 15);
+        GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Iridium, 8L), ItemList.RC_Rebar.get(64L, new Object[0]), 2400, 15);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Tin, 12L), ItemList.Cell_Empty.get(6L, new Object[0]), 1200, 8);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Iron, 12L), new ItemStack(Items.bucket, 4, 0), 800, 4);
         GT_Values.RA.addBenderRecipe(GT_OreDictUnificator.get(OrePrefixes.plate, Materials.WroughtIron, 12L), new ItemStack(Items.bucket, 4, 0), 800, 4);
@@ -1376,12 +1378,13 @@ public class GT_MachineRecipeLoader implements Runnable {
         GT_Values.RA.addAssemblerRecipe(new ItemStack(Blocks.stone_slab, 3, 7), ItemList.RC_Rebar.get(1L, new Object[0]), ItemList.RC_Tie_Stone.get(1L, new Object[0]), 128, 8);
         GT_Values.RA.addAssemblerRecipe(GT_OreDictUnificator.get(OrePrefixes.wireGt01, Materials.Copper, 9L), GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Lead, 2L), GT_Values.NF, ItemList.RC_ShuntingWire.get(4L, new Object[0]), 1600, 4);
         GT_Values.RA.addAssemblerRecipe(GT_OreDictUnificator.get(OrePrefixes.wireGt01, Materials.AnnealedCopper, 9L), GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Lead, 2L), GT_Values.NF, ItemList.RC_ShuntingWire.get(4L, new Object[0]), 1600, 4);
-        GT_Values.RA.addAssemblerRecipe(GT_OreDictUnificator.get(OrePrefixes.ingot, Materials.Steel, 3L), GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Gold, 3L), Materials.Blaze.getMolten(432L), ItemList.RC_Rail_HS.get(8L, new Object[0]), 400, 4);
-        GT_Values.RA.addAssemblerRecipe(ItemList.RC_Rail_Standard.get(3L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Gold, 3L), Materials.Redstone.getMolten(432L), ItemList.RC_Rail_Adv.get(8L, new Object[0]), 400, 4);
+        GT_Values.RA.addAssemblerRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Steel, 3L), GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Electrum, 3L), Materials.Blaze.getMolten(216L), ItemList.RC_Rail_HS.get(8L, new Object[0]), 400, 4);
+        GT_Values.RA.addAssemblerRecipe(GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Steel, 3L), GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Electrum, 3L), Materials.ConductiveIron.getMolten(432L), ItemList.RC_Rail_HS.get(8L, new Object[0]), 400, 4);
+        GT_Values.RA.addAssemblerRecipe(ItemList.RC_Rail_Standard.get(3L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Electrum, 3L), Materials.Redstone.getMolten(216L), ItemList.RC_Rail_Adv.get(8L, new Object[0]), 400, 4);
         GT_Values.RA.addAssemblerRecipe(ItemList.RC_Rail_Standard.get(1L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.wireGt01, Materials.Copper, 1L), ItemList.RC_Rail_Electric.get(1L, new Object[0]), 50, 4);
         GT_Values.RA.addAssemblerRecipe(ItemList.RC_Rail_Standard.get(1L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.wireGt01, Materials.AnnealedCopper, 1L), ItemList.RC_Rail_Electric.get(1L, new Object[0]), 50, 4);
-        GT_Values.RA.addAssemblerRecipe(ItemList.RC_Tie_Wood.get(6L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.plate, Materials.Iron, 1L), ItemList.RC_Rail_Wooden.get(6L, new Object[0]), 400, 4);
-        GT_Values.RA.addAssemblerRecipe(ItemList.RC_Tie_Wood.get(6L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.plate, Materials.WroughtIron, 1L), ItemList.RC_Rail_Wooden.get(6L, new Object[0]), 400, 4);
+        GT_Values.RA.addAssemblerRecipe(ItemList.RC_Tie_Wood.get(3L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.stick, Materials.Iron, 3L), ItemList.RC_Rail_Wooden.get(12L, new Object[0]), 400, 4);
+        GT_Values.RA.addAssemblerRecipe(ItemList.RC_Tie_Wood.get(3L, new Object[0]), GT_OreDictUnificator.get(OrePrefixes.stick, Materials.WroughtIron, 3L), ItemList.RC_Rail_Wooden.get(12L, new Object[0]), 400, 4);
         GT_Values.RA.addAssemblerRecipe(ItemList.RC_Tie_Wood.get(4L, new Object[0]), ItemList.Circuit_Integrated.getWithDamage(0L, 4L, new Object[0]), ItemList.RC_Bed_Wood.get(1L, new Object[0]), 200, 4);
         GT_Values.RA.addAssemblerRecipe(ItemList.RC_Tie_Stone.get(4L, new Object[0]), ItemList.Circuit_Integrated.getWithDamage(0L, 4L, new Object[0]), ItemList.RC_Bed_Stone.get(1L, new Object[0]), 200, 4);
         for (ItemStack tRail : new ItemStack[]{ItemList.RC_Rail_Standard.get(6L, new Object[0]), ItemList.RC_Rail_Adv.get(6L, new Object[0]), ItemList.RC_Rail_Reinforced.get(6L, new Object[0]), ItemList.RC_Rail_Electric.get(6L, new Object[0]), ItemList.RC_Rail_HS.get(6L, new Object[0]), ItemList.RC_Rail_Wooden.get(6L, new Object[0])}) {