diff --git a/Engine/prop_81in2v.xml b/Engine/prop_81in2v.xml
index f71777fed..81f170063 100644
--- a/Engine/prop_81in2v.xml
+++ b/Engine/prop_81in2v.xml
@@ -6,7 +6,7 @@
   MINPITCH 17
   MAXPITCH 31.8
   MINRPM 900
-  MAXRPM 2700
+  MAXRPM 2400
   C_THRUST 27 4
        17.0    21.0    26.0    32.0
   0.10  0.0818  0.0910  0.0870  0.0950