#901, yasim report the wrong sign in side-slip-deg and -rad.

diff --git a/src/FDM/YASim/YASim.cxx b/src/FDM/YASim/YASim.cxx
index 03f55217be0ca35c73e763862f868738891a8b09..01181d3169fc33e7afc0ecd408b032a92ce31694 100644 (file)
--- a/src/FDM/YASim/YASim.cxx
+++ b/src/FDM/YASim/YASim.cxx
@@ -513,7 +513,7 @@ void YASim::copyFromYASim()
     float alpha, beta;
     Glue::calcAlphaBeta(s, wind, &alpha, &beta);
     _set_Alpha(alpha);
-    _set_Beta(beta);
+    _set_Beta(-beta);
 
     float tmp[9];
     Math::trans33(xyz2ned, tmp);