Conceptual design of flight demonstrator vehicles for the ATREX engine

Kazuhidé Mizobata, Hiroyuki Kimura, Hiromu Sugiyama, Tetsuya Sato, Hiroaki Kobayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The air-turbo ramjet expander-cycle (ATREX) engine has been proposed for the main propulsion system in the Japan's TSTO space plane concept. The ground firing tests of its prototype core engine have been carried out successfully and its development study is now in the phase of planning flight demonstrations. This paper describes the concepts and the flight capability analysis of the flight demonstrator vehicles for the ATREX engine. Performance and weights of a subscale engine of a compressor fan diameter of 500mm are evaluated on the basis of the near-term technology. Vehicle configurations for carrying a single engine as well as twin engines are proposed. Their weights are evaluated by summing up their primary components designed preliminarily on the basis of the current technology. Their aerodynamic coefficients are predicted by a combination of the Newtonian approximation and Mach number dependence evaluated with DATCOM. Three-degree-of freedom flight trajectory calculation reveals that the single-engine configurations need a structural weight reduction for realization of a full demonstration up to Mach 6. On the other hand, the twin-engine configuration is found to be capable of carrying out a full demonstration, although a certain amount of its structural weight must be replaced by fuel for realization of its return flight.

Original languageEnglish
Title of host publication12th AIAA International Space Planes and Hypersonic Systems and Technologies
Publication statusPublished - 2003 Dec 1
Event12th AIAA International Space Planes and Hypersonic Systems and Technologies 2003 - Norfolk, VA, United States
Duration: 2003 Dec 152003 Dec 19

Publication series

Name12th AIAA International Space Planes and Hypersonic Systems and Technologies

Conference

Conference12th AIAA International Space Planes and Hypersonic Systems and Technologies 2003
CountryUnited States
CityNorfolk, VA
Period03/12/1503/12/19

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ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

Cite this

Mizobata, K., Kimura, H., Sugiyama, H., Sato, T., & Kobayashi, H. (2003). Conceptual design of flight demonstrator vehicles for the ATREX engine. In 12th AIAA International Space Planes and Hypersonic Systems and Technologies (12th AIAA International Space Planes and Hypersonic Systems and Technologies).