Technical data

Geometry
Wing Span 21.5 m / 70.5 ft
Wing Area 12.9 m² / 139 ft²
Aspect Ratio 35.8
Fuselage Length 7.40 m / 24.4 ft
Fuselage Height 1.64 m / 5.4 ft
Weight
Empty Weight 480 kg / 1058 lb
Maximum Weight 710 kg / 1565 lb
Waterballast 126 l / 33.3 USgal
Min. Wing Loading * 42,6 kg/m² / 8.7 lb/ft²
Max. Wing Loading 55.0 kg/m² / 11.3 lb/ft²
Glide Performance
Best Glide Ratio 58
Min. Sink Rate (at weight 550 kg / 1212 lb)* 0,45 m/s / 89 ft/min
Stall Speed (at weight 550 kg / 1212 lb)* 73 km/h /39 kts
Motor data
Motor DC/DC brushless
Power 42 kW / 57 hp
Revolutions 1500 rpm
Maximum Revolutions 1700 rpm
Climb performance Standard battery Large battery
Max. Climb Rate* 4.4 m/s / 866 ft/min 4.4 m/s / 866 ft/min
Max. Climb Altitude* 4200 m / 13800 ft 5600 m / 18400 ft
* Pilot+Parachute = 70kg / 154 lb

3-view Antares 21E