European Facility For Airborne Research

Dimensions

Flying performances

Speed

Min speed	92 m/s
Max speed	258 m/s
Usual speed during measurements	210 m/s
Usual speed during transit flights	210 m/s
Ascent rate	10 m/s

Altitude

Min altitude	Above sea: 200 ft Above ground: 500 ft
Max ceiling	51 000 ft
Usual ceiling during measurements	47 000 ft
Ceiling limitations	Data - Sheet EASA Airframe and Engine determined

Payload

Empty weight	22 120 kg
Max take-off weight	41 277 kg
Max payload	3 960 kg
Max scientific payload	3 000 kg (X-coordinate of 2nd point)
Usual scientific payload during measurements	2 500 kg
Scientific payload for max endurance	1 000 kg (X-coordinate of 1st point)

Aircraft autonomy

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Endurance

Max endurance at min scientific payload and max fuel	12 h (Y-coordinate of 1st point)
Endurance at max scientific payload	10 h (Y-coordinate of 2nd point)

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Range

Max range	10 200 km (at min scientific payload and max fuel)
Conditions for max range	FL410 - FL510 with stepclimb, Mach 0.77
Range at max scientific payload	None km
Usual range during measurement flight	8 200 km

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Other

Weather conditions limitations	VFR and IFR (generally in icing conditions)
Take-off runway length	1 830 m
Engines	2 x Rolls Royce BR710
Avionics	Honeywell Primus Epic Planview

Crew and scientists on board

Crew (pilots + operators)	3
Seats available for scientists	4 - 15

Cabin

Length	11.00 m
Width	2.24 m
Height	1.88 m
Apertures	main door: W0.88 m x H1.52 m; baggage door: W0.96 m x H0.91 m
Cabin pressurized	yes
More information	no

Aircraft modifications

Nose boom	1,5 m length in front of aircraft nose, made of CFK for carrying measuring probes
Windows	2 coverable viewports in the bottom and 2 on top of the fuselage (D0.51 m each)
Openings	On top: 10 x W0.25 m x L0.18 m and 2 x W0.25 m x L0.36 m On bottom: 1 x W0.25 m x L0.18 m On sides: 9 x W0.25 m x L0.18 m
Hard points	under the wings: 6 hardpoint stations (3 each wing) to carry loads up to 400 kg each.
Inlets	possible: 12 upper, 10 lower fuselage possible on apertures and viewports
Additionnal systems	no

Acquisition systems

Typically about 140 (and more) channels of analogue data, ARINC and aircraft bus data, GPS, inertial and attitude, data aquisition up to 100Hz

Electrical power

Aircraft total electrical power (kW)	115V/400Hz - 2 x 40 KW
Electrical power (kW) and voltages (V) available for scientists	2 x 20KW - 115V - 400Hz 3Phase ; 115V/400Hz each phase 20A fused ; 28V DC - 2 x 250A via TRU - fused on 20A and 50A sockets 230V/50Hz = 2 x 3,5KW