European Facility For Airborne Research

Dimensions

Flying performances

Speed

Min speed	24 m/s
Max speed	73 m/s
Usual speed during measurements	41 m/s
Usual speed during transit flights	46 m/s
Ascent rate	3 m/s

Altitude

Min altitude	Above sea: 50 ft Above ground: 50 ft
Max ceiling	16 400 ft
Usual ceiling during measurements	10 000 ft
Ceiling limitations	oxygen above FL100

Payload

Empty weight	640 kg
Max take-off weight	930 kg
Max payload	143 kg
Max scientific payload	143 kg (X-coordinate of 2nd point)
Usual scientific payload during measurements	110 kg
Scientific payload for max endurance	n/c

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Endurance

Max endurance at min scientific payload and max fuel	5 h (Y-coordinate of 1st point)
Endurance at max scientific payload	3 h (Y-coordinate of 2nd point)

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Range

Max range	833 km (at min scientific payload and max fuel)
Conditions for max range	high cruise altitude
Range at max scientific payload	None km
Usual range during measurement flight	626 km

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Other

Weather conditions limitations	VFR, daytime, crosswind: 8 kts
Take-off runway length	337 m
Engines	1 x Rotax 914 F3
Avionics	n/c

Crew and scientists on board

Crew (pilots + operators)	1
Seats available for scientists	1

Cabin

Length	n/a m
Width	n/a m
Height	n/a m
Apertures	n/a
Cabin pressurized	no
More information	Two seats side by side. Small "baggage" area for payload behind seats, max 30 kg

Aircraft modifications

Nose boom	no
Windows	adapter plate for small inlets
Openings	Port side underwing pod fitted with view ports for optical sensors; these are open ports.
Hard points	Each wing is equipped with an underwing pod, max 55 kg total mass each side.
Inlets	On each underwing pod; available via storm window and baggae area port.
Additionnal systems	no

Acquisition systems

Data is generally logged locally within each functional system as well as key outputs being redundantly logged centrally (2 x CSI CR1000 dataloggers) and, in some cases, on other systems where such data may be relevant. All systems are networked and real time monitoring /control as well as data retrieval are performed remotely via a central 'Control/Display Computer' (the exceptions being hyperspectal and photograhic imaging, where swappable SSD / memory cards are used for data transfer). Data may also be retrieved across the network directly to an external ruggedised PC with local RAID storage and hot-swappable drives via umbilical. The network also provides system synchronisation via GPS-based NTP signal (which is also broadcast in NMEA/PPS for precsion synchronisation where available).

Electrical power

Aircraft total electrical power (kW)	2 kW
Electrical power (kW) and voltages (V) available for scientists	0.8 kW; Each payload bay (i.e. each pod and the cabin) is provided with 6 independently switched circuits as follows: 2 x 28 VDC; 2 x 14 VDC; 1 x 5 VDC; 1 x 115 VAC single phase 60 Hz.