diff --git a/Nasal/engines-common.nas b/Nasal/engines-common.nas
index 02819c98..0d9ff2c9 100644
--- a/Nasal/engines-common.nas
+++ b/Nasal/engines-common.nas
@@ -114,10 +114,10 @@ var doRevThrust = func {
 	if (getprop("/controls/engines/engine[0]/reverser") == "1" and getprop("/controls/engines/engine[1]/reverser") == "1" and getprop("/gear/gear[1]/wow") == 1 and getprop("/gear/gear[2]/wow") == 1) {
 		var pos1 = getprop("/controls/engines/engine[0]/throttle-rev");
 		var pos2 = getprop("/controls/engines/engine[1]/throttle-rev");
-		if (pos1 < 0.65) {
+		if (pos1 < 0.649) {
 			setprop("/controls/engines/engine[0]/throttle-rev", pos1 + 0.15);
 		}
-		if (pos2 < 0.65) {
+		if (pos2 < 0.649) {
 			setprop("/controls/engines/engine[1]/throttle-rev", pos2 + 0.15);
 		}
 	}
@@ -139,12 +139,12 @@ var unRevThrust = func {
 	if (getprop("/controls/engines/engine[0]/reverser") == "1" or getprop("/controls/engines/engine[1]/reverser") == "1") {
 		var pos1 = getprop("/controls/engines/engine[0]/throttle-rev");
 		var pos2 = getprop("/controls/engines/engine[1]/throttle-rev");
-		if (pos1 > 0.05) {
+		if (pos1 > 0.051) {
 			setprop("/controls/engines/engine[0]/throttle-rev", pos1 - 0.15);
 		} else {
 			unRevThrust_b();
 		}
-		if (pos2 > 0.05) {
+		if (pos2 > 0.051) {
 			setprop("/controls/engines/engine[1]/throttle-rev", pos2 - 0.15);
 		} else {
 			unRevThrust_b();
diff --git a/revision.txt b/revision.txt
index 47fdc133..49f27dcb 100644
--- a/revision.txt
+++ b/revision.txt
@@ -1 +1 @@
-4512
\ No newline at end of file
+4513
\ No newline at end of file