Hello.

Right now, I am using tumsimulator(Fuerte base simulation for ardrone) After I have modified some of them, I was able to spawn 2nd ardrone. I am also able to track the navigating from Rviz for both of ardrone. When I publish "takeoff" command to 1star, it works. However, it doesn't work when I publish to 2ndar/takeoff. 1star just takes the command(2nd_ar/takeoff) and takeoff forever. Does anyone know about this problem?

Main launch file

<?xml version="1.0"?>

<!-- Start Gazebo with wg world running in (max) realtime -->

<!-- start gui -->

<!-- Spawn simulated quadrotor uav -->

<!-- Spawn simulated quadrotor uav -->

<!-- Start rviz visualization with preset config -->

spawnmodel launch file

<?xml version="1.0"?>

<!-- send the robot XML to param server -->

<!-- push robotdescription to factory and spawn robot in gazebo --> <node name="spawnquadmodel" pkg="gazebo" type="spawnmodel" args="-param robotdescription -urdf -unpause -$(arg initpose) -model $(arg Quadname)" respawn="false" />

<!-- start robot state publisher -->

<!-- node name="hectorposeestimation" pkg="hectorposeestimation" type="hectorposeestimation_node" output="screen"/-->