diff --git a/src/FDM/YASim/Airplane.cpp b/src/FDM/YASim/Airplane.cpp
index f63eaaa5e..50ceefefd 100644
--- a/src/FDM/YASim/Airplane.cpp
+++ b/src/FDM/YASim/Airplane.cpp
@@ -126,14 +126,17 @@ void Airplane::getPilotAccel(float* out)
     // Gravity
     Glue::geodUp(s->pos, out);
     Math::mul3(-9.8f, out, out);
+    Math::vmul33(s->orient, out, out);
+    out[0] = -out[0];
 
     // The regular acceleration
     float tmp[3];
-    Math::mul3(-1, s->acc, tmp);
-    Math::add3(tmp, out, out);
-
     // Convert to aircraft coordinates
-    Math::vmul33(s->orient, out, out);
+    Math::vmul33(s->orient, s->acc, tmp);
+    tmp[1] = -tmp[1];
+    tmp[2] = -tmp[2];
+
+    Math::add3(tmp, out, out);
 
     // FIXME: rotational & centripetal acceleration needed
 }
diff --git a/src/FDM/YASim/YASim.cxx b/src/FDM/YASim/YASim.cxx
index 24d62735d..3cfd050d0 100644
--- a/src/FDM/YASim/YASim.cxx
+++ b/src/FDM/YASim/YASim.cxx
@@ -448,7 +448,7 @@ void YASim::copyFromYASim()
     _set_Accels_CG_Body(M2FT*v[0], -M2FT*v[1], -M2FT*v[2]);
 
     _fdm->getAirplane()->getPilotAccel(v);
-    _set_Accels_Pilot_Body(-M2FT*v[0], M2FT*v[1], M2FT*v[2]);
+    _set_Accels_Pilot_Body(M2FT*v[0], M2FT*v[1], M2FT*v[2]);
 
     // There is no property for pilot G's, but I need it for a panel
     // instrument.  Hack this in here, and REMOVE IT WHEN IT FINDS A