Langenthal (lspl) switzerland professional 2004 new: langenthal was adapted for switzerland professional 2004. The idyllic airfield langenthal is 20 nm nord-east of bern switzerland. Important buildings like hangar, workshop as well as offices and a restaurant are also situated on the airfield. All made by digital picturegraphs. Static aircrafts, gliders, cars, windsails and visual approach charts are available.