Affiliation:
1. MTU Motoren- und Turbinen-Union, Munich, Federal Republic of Germany
Abstract
Under the German Hypersonic Technology Program, future-oriented designs and technologies for reusable space vehicles, such as SA¨NGER, are being developed. Pioneering the way in a new field of technology, MTU constructed and tested, with success from the very beginning, an actively cooled, asymmetric rectangular nozzle (SERN—single expansion ramp nozzle) of advanced design, characterized by the following innovative features: • rectangular, flap-controlled variable flow cross section; • liquid-hydrogen-cooled structures; • high-temperature-resistant sealing system for variable nozzle flaps; and • uncooled expansion ramp in carbon/carbon composite with anti-oxidation coating. Development of the nozzle called for the mastery of new manufacturing techniques; proof of concept was provided in the successful performance of initial tests of 300 second duration.
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference4 articles.
1. Heitmeir, F., Lederer, R., and Herrmann, O., 1992, “German Hypersonic Technology Programme: Air-Breathing Propulsion Activities,” AIAA Paper No. 92-5057.
2. Krammer, P., et al., 1992, “German Hypersonic Technology Programme Status: Air-Breathing Propulsion,” AIAA Paper No. 93-5094.
3. Lederer, R., and Kruger, W., 1993, “Nozzle Development as a Key Element for Hypersonic,” AIAA Paper No. 93-xxxx.
4. Strobel, X. X., et al., 1993, “Light-Weight Structures for Hypersonic Propulsion Systems,” AIAA Paper No. 93-5037.