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Hello everyone 

I am trying to simulate a flight for fixed wings plane in mission planner using JSBSim ,I built my mission and I write it ,all the things went well but my plane doesn't move or do not follow WP ,I checked the parameters I noticed that motors are not armed when I clicked and the button I had an error said :Mav can not reply to this command .

please any kind of help it will be fine 

Thanks a lot