ENDURO - KIT aircraft
The ENDURO model (Schmidtler, Munich, Germany) is a double-seated, flexible-wing, open-cockpit ultralight aircraft, maximum total weight at take off 400 kg, trike type. This ultralight aircraft is operated by Dr. Wolfgang Junkermann, Karlsruher Institut für Technologie, Germany.
It is powered by a ROTAX 582 two-stroke engine with 64 hp. The flexible wing (MILD, Air Creation, France) has an area of 16 m2. Total weight of the fueled aircraft is 240 kg, which provides, in addition to the pilot, a total of 90 kg payload, of which 45 kg are used for the currently installed instrumentation. A separate generator, independent from the aircraft generator, provides power for all instrumentation with a capacity of 200 W at 12 VDC.
This aircraft is part of the EUFAR TA fleet.
One of the main advantages of the open structure of ultralight aircraft is the very easy installation of instruments that can be rigidly attached to the mainframe tubes, often without the need of complicated air inlet systems. The push propeller enables the installation of all instruments in front of the engine and exhaust. All air inlets can be installed in undisturbed air in front of the aircraft and there is no need to cut holes into the aircraft shell.
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More Information (under review)
Dimensions: Length: 3.50 m; Height: 3.50 m; Wingspan: 10.00 m; Flying performances: Speed: Min speed: 15 m/s Max speed: 30 m/s Usual speed during measurements: 25 m/s Usual speed during transit flights: 25 m/s Ascent rate: 6 m/s Altitude: (1 ft = 0.31 m) Min altitude: Above sea: 300 ft Above ground: 50 ft Max ceiling: 17000 ft Usual ceiling during measurements: 14000 ft Ceiling limitations: unpressurized aircraft Payload: Empty weight: 240 kg Max take-off weight: 450 kg Max payload: 210 kg Max scientific payload: 80 kg ... (X-coordinate of 2nd point) Usual scientific payload during measurements: 50 kg Scientific payload for max endurance: 50 kg ... (X-coordinate of 1st point) Endurance: Max endurance: 7 h (at min scientific payload and max fuel) (Y-coordinate of 1st point) Endurance at max scientific payload: 5 h ... (Y-coordinate of 2nd point) Range: Max range: 700 km (at min scientific payload and max fuel) Conditions for max range: low wind speeds Range at max scientific payload: 500 km Usual range during measurement flight: 300 km Other: Weather conditions limitations: VFR Take-off runway length: 120 m Crew and scientists on board: Crew (pilots + operators): 1; Seats available for scientists: Pilot = Scientist Cabin: Length: no cabin, open aircraft Aircraft modifications: Nose boom: yes with five hole turbulence probe Openings: open aircraft Hard points: two Inlets: on request Additionnal systems: Snowbords for use on snow surfaces available Acquisition systems: Data acquisition system based on Vaisala Datalogger network plus fast PC 104 bord computer linked with CAN-Bus Electrical power: Aircraft total electrical power (kW): 1.0 kW, 12, 24 VDC; 0,25kW 220 VAC Electrical power (kW) and voltages (V) available for scientists: 0.7 kW, 12 VDC or 24 VDC
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