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Schempp-Hirth Discus-2c FES vs Lange Aviation Antares 23E

Overview Electric Flying Vehicle

Model Schempp-Hirth Discus-2c FES Lange Aviation Antares 23E
Manufacturer Schempp-Hirth Flugzeugbau GmbH Lange Aviation GmbH
Announced 2010
launched 2010
Base Price 175000

Electric Flying Vehicle Dimensions & Build

Aircraft Type Single-seat electric-sustainer glider Self-launching electric sailplane (open-class glider)
Length 6.83 m 7.45 m (24.4 ft)
Wingspan / Rotor Diameter 18 m 23.00 m (75.5 ft)
Height 1.3 m 1.88 m (6.2 ft)
Empty Weight 315–330 kg 530 kg
Maximum Takeoff Weight (MTOW) 600 kg 850 kg
Passenger Capacity 1 1 (pilot)
Cargo Capacity Minimal
Landing Gear Type Retractable single main wheel with tailwheel Retractable hydraulic landing gear

Power & Propulsion

Battery Type Lithium-Polymer Lithium-ion battery packs integrated in the wing leading edges
Battery Capacity 2.2 kWh total (2 packs of ~1.1 kWh)
Battery Brand LZ Design Lange proprietary system
Charging Input Voltage 230 V AC
Standard 220 V AC mains socket

Charging Power 1 kW
Charging Time 3–5 hours
Up to 9 hours (standard)
Solar / Hybrid Assist None None
Motor LZ Design FES electric sustainer
Brushless DC electric motor (external rotor)
Total Power Output 22–25 kW peak 42 kW (≈ 57 hp)
Propulsion System Nose-mounted folding electric propeller Direct-drive fixed-pitch composite propeller (2 m diameter)
transmission Direct drive Direct drive

Electric Flying Vehicle Performance

Cruising speed 100–140 km/h
Top Speed 250 km/h
Maximum Range 70–80 km Up to 380 km
Endurance (Flight Time) 30–45 minutes
Climb Rate 1 m/s 4 m/s (≈ 790 ft/min)
Service Ceiling (Max Altitude) 5,000 m (soaring) 3,000 m (≈ 9,840 ft) under motor power
Takeoff / Landing Type FES not for takeoff Self-launch / glider landing
Noise Level (dB) 60–65 dB Extremely low (electric propulsion, quiet operation)
Flight Modes Soaring mode, FES assist mode Electric self-launch mode / unpowered glider mode

Safety & Systems

Avionics LXNAV (S80/S100/GPS) Vario FLARM collision-avoidance CAN-bus architecture, EDCS-4 main computer, wireless diagnostics
Flight Control Fully manual controls; full-span flaperons Conventional glider controls (ailerons, flaperons, airbrakes)
Safety Features FLARM
Crash-optimized cockpit
Optional ballistic parachute
Crumple-zone nose
Reinforced survival-space cockpit
Ground/air detection to prevent gear retraction on ground
Emergency Landing System None; standard glider procedures
Certifications EASA sailplane certification EASA type-certified (EA42 electric propulsion system)

Interior & Comfort

Seating Layout Single seat Single-seat cockpit
Cabin Type Enclosed cockpit with panoramic canopy Panoramic bubble canopy with high visibility
Infotainment & Displays Digital glide computer (LXNAV) Flight and battery monitoring displays
Storage Compartments Small rear stowage; oxygen area Minimal (glider-style cockpit)
Other Features Adjustable pedals, ventilation, optional oxygen Adjustable seat for pilots 1.54 – 1.94 m tall
Canopy supported by gas spring (can taxi with canopy open)

Capacities

Passenger Capacity 1 1 (pilot)
Payload Capacity 120 kg (pilot + small items) 320 kg (including pilot, batteries, ballast)
Cargo Capacity Minimal Up to 247 L (~247 kg)
  Schempp-Hirth Discus-2c FES Lange Aviation Antares 23E

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