Lange Aviation - Antares 21E:

High Performance with future potential

When the perfect design obeys the laws of aerodynamics and can only be improved in nuances, inner values count. The engineers at Lange Aviation have consistently evaluated flights of the successful Antares 20E model as well as OLC- and competition flights over the past years and applied the latest technologies. The result is the Antares 21E. High performance and clearly the top performer with future potential in our range of gliders:

The new Antares 21E, with its wingspan stretched to 21.5 meters, features a slim, newly profiled outer wing with the leading edge swept back. 1.5 meters more wingspan and changes to the cockpit design make the glider one with its pilot. The aircraft now conveys even better the feeling of lift. The swept-back outer wings have increased the lateral stability. This gives the Antares exceptional climb performance in thermals while allowing it to be controlled comfortably with low rudder forces. The 21E presents itself with improved minimum sink rate, better glide in the range up to medium speeds and ultimately increased best glide. It also gains in the high speed range thanks to a possible higher maximum wing loading.

Fly as far as possible and climb better in weak updrafts due to an improved wing. Turn in a more stable manner. And reach climb altitudes of up to 5,600 meters with the power of an emission-free electric motor and Antares.RED.3, the new battery system from Lange Aviation. Thanks to the integrated charger, refuel quickly and safely anywhere. Sit comfortably and safely, reach controls easily and control the most powerful propulsion system for gliders to date stress-free and intuitively. The propulsion system is monitored and controlled by ECDS 4, Lange Aviation's latest main computer. An enlarged, easier-to-read display shows all important information with a likewise refined voice output. The computer currently operates with software version 7, which also facilitates maintenance and service. A direct physical check for ARC is now only due every three years. To protect the integrated charger for the lithium batteries, there is an Electric Vehicle Supply Equipment (EVSE) - as used in electric cars - that permanently monitors the correct function of the mains connection and prevents damage caused by voltage fluctuations.

Antares 21E in powered flight

The inner wings of the four-part wing structure are each equipped with three tanks holding a total of 126 liters of water ballast. A two-stage tank in the vertical stabilizer serves to compensate for shifts in the center of gravity caused by the ballast in the outer inner wing. A maximum open-class rated wing loading of 55 kg/m² is then possible. The computer-aided management of the ballast is entirely at the level of the high-tech aircraft. The electromagnetic tank valves can be controlled individually, and when the outer wing tanks are opened, the tail tank is software-controlled to release only as much ballast water as is required to maintain the optimum center of gravity position.

The landing gear has additional reserves for the Antares 21E's high maximum flight mass of 710 kilograms. In the event of a crash, it can absorb a maximum amount of energy. The safety cockpit is based on the proven solution from Antares 20E. Here, too, improvements have been made for the Antares 21E. Above all, a lot has been invested in good airflow through the cabin to ensure good cockpit ventilation on the one hand and low-drag venting on the other. In the 21E, for example, cockpit air can flow out through several outlets, and it then exits the fuselage at the tail. The outlet opening on the vertical stabilizer is so large that only a small impulse loss  with corresponding low resistance occurs. Disturbing currents inside the cockpit are prevented by an elaborate, effective sealing of the canopy. The advantage of this sophisticated "air conditioning system" for effective, easily controllable fresh air supply and cooling is that it largely avoids noise - a sign that this type of ventilation involves only minimal aerodynamic losses.

The new Antares 21E is the ideal glider for pilots who want more performance and more investment security today and in the future, and who want to excel, for example, in Online contest.

Antares 21E: the performance of the open class - the handling of the 15m class

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