I guess there is no definitive answer about why this happens with the Murchinson AI Concorde. It only seems to happen at some airports and not others. At KMIA, she lands and parks perfectly. At EGLL she disappears as soon as she touches the runway. too bad as it's a pretty good model of the classic bird. If anyone discovers anything new, please let me know. I guess Mr. Murchinson isn't around anymore as there is no way to contact him.