By Jason Hall
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Additional resources for Advances in Spacecraft Technologies
However, while it is accurate that the launch mass is typically reduced this does not directly result in a reduced launch vehicle cost as the reduction may not be sufficient to allow the use of a less capable, and hence lower cost, launch vehicle. As such the launch cost is only reduced if the reduced launch mass allows a smaller launch vehicle to be used, meaning that launch cost varies as a step function while launch mass linearly increases. Finally, it should be noted that if the total mission cost is high, say, 500+ M€ then 45 Solar Sailing: Applications and Technology Advancement reducing the launch mass cost by 10 – 20 M€ is a cost saving of order 2 – 4 %, which may not be considered a good cost/risk ratio for the project and indeed, the cost saving may be insufficient to pay for the additional development of the technology.
Additionally, since the NASA Comet Halley mission studies a large number of solar sail mission concepts have been devised and promoted by solar sail proponents. As such, this range of mission applications and concepts enables technology requirements derivation and a technology application pull roadmap to be developed based on the key features of missions which are enabled, or significantly enhance, through solar sail propulsion. This book chapter will thus attempt to link the technology application pull to the current technology developments and to establish a new vision for the future of solar sailing.
Han, J. W. & Li, H. R. (2007). Space docking hybrid simulation prototype experiment system. Chinese Journal of Mechanical Engineering. ; Yang, L. & Qu, G. J. (2004). Dynamics analysis and simulation of spacecraft docking mechanism. 2004, pp. 38-42 (in Chinese) 34 Advances in Spacecraft Technologies Zhang, C. F. (1999). Study on Six-Degree-of-Freedom simulation for docking. 1, Jan. 70-74 (in Chinese) Zhang, S. Y. (2006). Research on force control of hydraulic driven 6-DOF parallel robot. Ph. D.
Advances in Spacecraft Technologies by Jason Hall