// systems to be defined in a file, with overrides or initial loaded constants
// supplied in the relevant element of the aircraft configuration file.
if (!fname.empty()) {
property_element = el->FindElement("property");
// systems to be defined in a file, with overrides or initial loaded constants
// supplied in the relevant element of the aircraft configuration file.
if (!fname.empty()) {
property_element = el->FindElement("property");