
-concentrate on a pure technological demonstrator mission with increasing complexity and level of difficulty -get rid of any scientific payload -use materials and technologies that are proved and tested in numerous preceding studies and projects -take care that the technological success is perfectly documented and communicated to potential users -make sure that all Gossamer technologies are scalable Gossamer -1: 2013, demonstration of safe deployment of a 5m x 5m solar sail, 320km

Gossamer -2: 2014, deployment of a 20m x 20m solar sail, demonstration of limited orbit and full attitude control, 500km -orbit: 10,000km or higher, inclination: no requirement, vehicle: tbd -50m x 50m, < 80kg, container volume 100 x 100 x 100cm 3 (tbc) -free flying "Inspector" CubeSat as for Gossamer-2 -verification as for Gossamer-2 -a narrow angle camera on board the s/c may provide images of the Earth once the s/c leaves the Earth behind and approaches the Moon

{'paper_id': '121921409', 'title': 'The 3-step DLR–ESA Gossamer road to solar sailing', 's2_url': 'https://api.semanticscholar.org/CorpusID:121921409', 'source': 'S2ORC'}