The main aspects were reviewed in different expert opinions

MET, Rostock, for the aviation aspects

Ferchau Engineering, Bremen for the concept

Technical University of Dresden, Institute of Mechatronic

Engineering, chair of fluid mechatronic systems,

for the concept from the hydrostatical gear to the hot air at the coast

Alphalink, Berlin, for the construction of the wing

Anemos GmbH, Reppenstedt, wind analysis

IA Tec GmbH, Köln, review and calculation of the efficiency