www.planeur.net vous propose de tres nombreux documents en libre téléchargement :
The IGC Country Development Working Group is conducting a worldwide survey of glider pilots.
The purpose of the study is to better understand the issues faced by
pilots in different countries, the quality of experience enjoyed by
members of our sport and the nature of the global soaring community.
Participez à l'enquête : http://igc-survey.fai.org/