From 9d98966685016addc153c370efd9e1b2c2e88d3f Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Wed, 17 Jan 2007 23:38:13 +0000
Subject: [PATCH] Maik JUSTUS: minor fix for bending patch

---
 src/FDM/YASim/Rotorpart.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/FDM/YASim/Rotorpart.cpp b/src/FDM/YASim/Rotorpart.cpp
index dcf62d9ab..1bd3a7088 100644
--- a/src/FDM/YASim/Rotorpart.cpp
+++ b/src/FDM/YASim/Rotorpart.cpp
@@ -373,7 +373,7 @@ float Rotorpart::calculateAlpha(float* v_rel_air, float rho,
     int i,n;
     for (i=0;i<3;i++)
         moment[i]=0;
-    lift_moment=-_mass*_len; //*cos yaw * cos roll
+    lift_moment=-_mass*_len*9.81; //*cos yaw * cos roll
     *torque=0;//
     if((_nextrp==NULL)||(_lastrp==NULL)||(_rotor==NULL)) 
         return 0.0;//not initialized. Can happen during startupt of flightgear
@@ -464,7 +464,7 @@ float Rotorpart::calculateAlpha(float* v_rel_air, float rho,
     //as above, use 1st order approximation
     //float alpha=Math::atan2(lift_moment,_centripetalforce * _len); 
     float alpha;
-    alpha=lift_moment/(_centripetalforce * _len - _mass * _len/_alpha0);
+    alpha=lift_moment/(_centripetalforce * _len - _mass * _len * 9.81 /_alpha0);
     //centripetalforce is >=0 and _alpha0<-0.01
     return (alpha);
 }