_pressure_node = fgGetNode(_static_pressure.c_str(), true);
_serviceable_node = node->getChild("serviceable", 0, true);
_setting_node = node->getChild("setting-inhg", 0, true);
_pressure_node = fgGetNode(_static_pressure.c_str(), true);
_serviceable_node = node->getChild("serviceable", 0, true);
_setting_node = node->getChild("setting-inhg", 0, true);