{"aspect_id":"AS173","aspect_name":"thrust-to-mass-ratio","aspect_reference":null,"aspect_symbol":null,"name":"thrust-to-mass-ratio pound-force per pound (thrust to mass ratio)","scale_id":"SC1107","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"None lbf.lb-1","unit_id":"UN1148","unit_name":"pound-force per pound (thrust to mass ratio)","unit_reference":null,"unit_symbol":"lbf.lb-1"}