The Winaker isnīt new but in any kinds similar to parasailor. The manufacturer named it Winaker because of patent hassle with parasailor.
Found this note of M.Kistler in a german forum 2009:
""I have developed various development stages of the Parasails Parasailor Wingaker can very well provide information on the differences.
The Parasailor (ISTEC + Wuppertal) has a storage-air-filled wings, the parasail (ISTEC + Wuppertal) a single skin wing, which consists of only one layer of fabric in principle, thus without traffic jam filling air comes out. Both have an opening above and below the wing.
The WINGAKER by skywalk skin also has a single wing, here it comes out but with an opening below the wing.
The Wingaker recently was in fact also parasail. To make confusion out of the way but the system in Wingaker to rename decided skywalk."
In 2009 we used a Parasailor on a Leopard 45
, simply great sailing..