Advance Sigma 9: Full Review from issue 154

The Finished Article : Pat Dower heads to Switzerland to fly the new Sigma 9 and meet the team behind the glider. Published in Cross Country issue 154 I love it when a plan comes together. For the Sigma 9, I was able to combine pieces of work and travel to the Advance head office in the […] …read more

Source:: Cross Country – International Free Flying Magazine