X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FFDM%2Fflight.cxx;h=d501d1507cd72a0d25d6305f2247ccd628af5969;hb=38226af24ec01e8f0a20d7fd73ef838a69f6ef25;hp=6b642408963de7d6fd153e06e7d133b2e07b6a45;hpb=4a948f5955238e91f1d71274ed7f65d8dc97741c;p=flightgear.git

diff --git a/src/FDM/flight.cxx b/src/FDM/flight.cxx
index 6b6424089..d501d1507 100644
--- a/src/FDM/flight.cxx
+++ b/src/FDM/flight.cxx
@@ -268,15 +268,15 @@ FGInterface::bind ()
 				// Orientation
   fgTie("/orientation/roll-deg", this,
 	&FGInterface::get_Phi_deg,
-	&FGInterface::set_Phi_deg);
+	&FGInterface::set_Phi_deg, false);
   fgSetArchivable("/orientation/roll-deg");
   fgTie("/orientation/pitch-deg", this,
 	&FGInterface::get_Theta_deg,
-	&FGInterface::set_Theta_deg);
+	&FGInterface::set_Theta_deg, false);
   fgSetArchivable("/orientation/pitch-deg");
   fgTie("/orientation/heading-deg", this,
 	&FGInterface::get_Psi_deg,
-	&FGInterface::set_Psi_deg);
+	&FGInterface::set_Psi_deg, false);
   fgSetArchivable("/orientation/heading-deg");
   fgTie("/orientation/track-deg", this,
 	&FGInterface::get_Track);
@@ -331,11 +331,11 @@ FGInterface::bind ()
 				// LaRCSim are fixed (LaRCSim adds the
 				// earth's rotation to the east velocity).
   fgTie("/velocities/speed-north-fps", this,
-	&FGInterface::get_V_north, &FGInterface::set_V_north);
+	&FGInterface::get_V_north, &FGInterface::set_V_north, false);
   fgTie("/velocities/speed-east-fps", this,
-	&FGInterface::get_V_east, &FGInterface::set_V_east);
+	&FGInterface::get_V_east, &FGInterface::set_V_east, false);
   fgTie("/velocities/speed-down-fps", this,
-	&FGInterface::get_V_down, &FGInterface::set_V_down);
+	&FGInterface::get_V_down, &FGInterface::set_V_down, false);
 
   fgTie("/velocities/north-relground-fps", this,
     &FGInterface::get_V_north_rel_ground);
@@ -410,6 +410,10 @@ FGInterface::bind ()
 void
 FGInterface::unbind ()
 {
+  if (!bound) {
+    return;
+  }
+  
   bound = false;
 
   fgUntie("/position/latitude-deg");