Dimensions: Length: 20.66 m; Height: 5.20 m; Wingspan: 29.00 m; Flying performances: Speed: Min speed: 50 m/s Max speed: 105 m/s Usual speed during measurements: 80 m/s Usual speed during transit flights: 100 m/s Altitude: (1 ft = 0.31 m) Min altitude: Above sea: 100 ft Above ground: 500 ft Max ceiling: 19000 ft Usual ceiling during measurements: 14000 ft Payload: Empty weight: 8437 kg Max take-off weight: 13068 kg Max payload: 4631 kg Max scientific payload: 2500 kg ... (X-coordinate of 2nd point) Usual scientific payload during measurements: 500 kg Scientific payload for max endurance: 100 kg ... (X-coordinate of 1st point) Endurance: Max endurance: 8 h (at min scientific payload and max fuel) (Y-coordinate of 1st point) Endurance at max scientific payload: 3 h ... (Y-coordinate of 2nd point) Range: Max range: 1900 km (at min scientific payload and max fuel) Conditions for max range: with skis, 45' reserve, 3 PoB, survival equipment for 3 Range at max scientific payload: 470 km Usual range during measurement flight: 1675 km Other: Take-off runway length: 1200 m Engines: Pratt & Whitney PT6A-67R; Avionics: Honeywell Lasernav V Crew and scientists on board: Crew (pilots + operators): 2 pilots, (1 mechanic); Seats available for scientists: 5 Cabin: Length: 12.85 Width: 2.34 Height: 2.00 Apertures: top: 3 x 0,50 m & 5 x 0.15 m (all round) bottom: 4 x 0.45 x 0.50 m & 0.18 x 0.18 m (all rectangular); 2 x 0.15 m (round) ; Cabin pressurized: unpressurized More information: drop sonde launcher available; Aircraft modifications: Nose boom: 3 m protruding, with 2 sensor heads (magnetics, meteorology) Windows: 2 bubble side windows 1 optical window Openings: top: 3 x 0,50 m & 5 x 0.15 m (all round) bottom: 4 x 0.45x.50 m & 0.18x0.18 m (all rectangular); 2 x 0.15 m (round) Hard points: 3 hard points each side underneath the wing, inner and center 150 kg each, outer station 30 kg, mouting system bolts, resp. NATO lock system Inlets: no fixed ones, 2 removable inlets in front for aerosol and gases, 2 removable outlets in the back Additionnal systems: tail boom for magnetics and spectrometer Acquisition systems: MEDUSA-P Electrical power: Aircraft total electrical power (kW): 22.4 Electrical power (kW) and voltages (V) available for scientists: 15.4 kW/28 V DC, up to 2 kW 115 VAC/400 hZ and up to 2 kW 220 VAc/50 Hz - AC inverter are fed by DC science power -> less DC power when using AC power