I would say that the port fin is actually present but due to the angle is on the far side of, and thus masked by, the starboard 'big' fin.
Sänger was a BMFT (German Ministry for Research and Technology) funded study project, which was carried out by then MBB, Munich, to study the concept, materials and thrust unit, and for which MBB received more than 330 million DM (then apprx. 200,000,000 US-$). This was around 1990. A very good popular style article is in GEO 12/91 (the German equivalent of the Ntl. Geographic).The biggest lobbyist of Sänger was then Mr. Ernst Högenauer (Munich). Mr. Sängers son also lives near Munich (spoke to him once on the phone). MBB has been aquired by DASA. In fact, for technical details, specifications etc. I would write to the DASA, Munich PR office.With regard to progress, there is none. The project was officially terminated a few years ago, largely, because the estimated 40 Billion DM to build two planes were considered unaffordable, due to environmental objections and because the project outcome in technical terms was far from certain. Because of the way public funding works here, all tools, wind tunnel models etc. had to be kept on hand in case the project would be revived. This period has elapsed last autumn and DASA may have destroyed it. Or they may have given some items to the Technical University TU Munich. Inofficially, some people still try to do some work on Sänger and quietly divert some money, so I was told. But it is no longer an official project for some years now. Personally, I think the decision to terminate was right. Sänger is a brilliant project and should be revived when we have an infrastructure to supply (space stations and bases on Moon and Mars), but it is unsuited to build that infrastructure up.Personally, I think the decision to terminate was right. Sänger is a brilliant project and should be revived when we have an infrastructure to supply (space stations and bases on Moon and Mars), but it is unsuited to build that infrastructure up.The person to contact for further information at the TU Munich is Gerd Hofschuster. He presides the space student group, called WARR. They have a web page with a downlink at DLR's page. Mr. Hofschuster is very nice and knows Mr. Sänger, Mr. Högenauer and some people at DASA. Tom StinnesbeckFebruary, 1998
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