The flaps’ regulation is based on a novel control system. Handling The Antares 23 is thanks to its full span flaperons incredibly well maneuverable.
Only at air-speeds of 220 kph (119 kts) to 245 kph (132 kts) (depending on the wing loading), do the airfoils leave the laminar drag bucket. This allows for very high speed flights with unachievable glide performances. Only at speeds over 220 km/h (119 kts) to 245 km/h (132 kts) (depending on your actual wing loading) these airfoils tend to fall out of the laminar flow.Īn additional negative flap setting of -3° can be selected for fast glide. So, in the end you may fly at very high speeds and at the same time achieve a so far unreached gliding performance. When flying at high speeds you can take advantage of an additional negative flap setting (- 3°). This currently represents the best indicated value for airfoils which do not utilize boundary layer suction technique. On the airfoil’s upper surface the circulating air stays laminar until having followed up to 75% of its depth. It is also less sensitive to dirt or damage. According to investigations commissioned by Lange Aviation this method of influencing the boundary layer is not significantly different from installing suction openings – as long as you do correctly apply the tape to the predominant boundary layer. Zig-zag tape finally forces the laminar flow to transition to a turbulent boundary layer. The laminar flow on the wing’s bottom surface reaches up to 95% of its depth. We used and perfectly harmonized nine different wing airfoils to minimize drag. We have exploited all conceivable possibilities to optimize our glider, and designed it uncompromisingly all of a piece. The aerodynamic design is the result of a multi-year research project. These goals could be reached with the Antares. From wind tunnel to super-ellipse Almost irreconcilable: best climbing performance, an excellent glide ratio - even at high speeds, optimal thermalling performance, and all in all very good-natured handling characteristics.
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