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The electric solar wind sail, or electric sail for short, is a propulsion invention made in 2006 at the Kumpula Space Centre. This website is for the EU FP7 project, which is developing the E-sail towards prototype phase. See also the electric sailing science and technology pages.
The next step after ESAIL project will be SWEST: Solar Wind Electric Sail Test. The SWEST proposal was filed to EU in Nov 23 2011.

Participating organizations on the project are:
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