What is the Polar Vortex?
Answer (6): The Polar Vortex is the strongest during the respective winter times at the north and south polar regions of the Earth. The polar vortex usually begins to form sometime in April-May in the southern hemisphere and peaks during June & July and can last into October and November sometime (but usually dies out sometime late September). In the northern Hemisphere the polar vortex usually begins to form sometime in late October/November and peaks in January & February and dies out sometime in the spring. This is a large-scale circulation of the stratosphere. Click here to see an image of the Polar Vortex over the southern hemisphere. Click here for a complete definition of the Polar Vortex. Question (7): Why a sailplane? Answer (7): A sailplane is stable, has good controllability, and has relatively simple systems. The DG505M sailplane for phase one has an 8g rating.click here to go directly to the High-Performance Sailplane manufacturers web site. Question (8): What are some of
