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The Dornier 228: G-ENVR

The Dornier 228

Dornier Do228-101 G-ENVR.

The ARSF deploys a highly-capable Dornier 228-101 research aircraft purchased from Deutsches Zentrum fuer Luft-und Raumfahrt (DLR).external link

The Do 228 is a twin turbo-prop powered, non-pressurised, shoulder-wing monoplane with rectangular-section fuselage and a double passenger/cargo door. The aircraft is used in the fields of optical remote sensing, oceanography, atmospheric and earth science research. A range of sensors may be installed, for example metric cameras, multi- and hyperspectral scanners, optoelectronic and infrared line scanners, microwave radiometers, synthetic aperture and side-looking airborne radar, scatterometers, LIDAR, etc.

In ARSF service, the aircraft is configured with a core remote sensing instrument suite which comprises:

  • AISA Eagle & Hawk hyperspectral instruments (Specim)
  • Leica ALS50-II LiDAR
  • Leica RCD105 39 megapixel digital camera

In addition to this the facility can operate an Aircraft Integrated Meteorological Measurement System (AIMMS), Autonomous Airborne Particle Counter (AAPC) developed from a Grimm Sky-OPC and a Thermo 49i for the measurement of Ozone.

The underwing pms pods

The underwing pods which accommodate standard pms instruments.

The Dornier's size and flexibility make it an excellent test and development platform. G-ENVR has a number of hard points on the exterior available for mounting instruments, as well as a forward roof opening which can accommodate the whole air sampling 'snorkel'. For the majority of the flying season, the cabin contains the core remote sensing instrumentation, although the Dornier's sizeable cabin enables the housing of additional instrumentation in standard 19" racks.

The aircraft's excellent range/payload characteristics enable support of marine remote sensing application in continental shelf environments.

Technical Data

General:

Engines Garrett TPE 331 - 5A - 252 D with 533 kW (715 SHP) TO power
Minimum Crew IFR: 2 Pilots
Electrical power for Experiments DC: 28V / max. 220 A/ 6.3kW;
AC via inverter: 220V / 50Hz (2000 VA)
Cabin volume None / approx. 14 m3
D-CALM plan

The plan drawing of the Dornier 228-101. Click on the image to enlarge.

Weights:

max. Take-Off weight 5980 kg 13184 lbs.
max. Landing-weight 5700 kg 12566 lbs.
max. Zero-fuel weight 5540 kg 12214 lbs.
max. fuel 1885 kg 4156 lbs.
Crew & payload @ 5 hours endurance 499 kg 1100 lbs.

Performance:

Altitude [ft] 5 000 10 000 15 000
max. Distance [NM] 1270 1440 1610
max. Endurance [h] 05.90 07.00 08.00
max. Speed 190 KTAS 200 KTAS 206 KTAS
max. Speed for science 160 KTAS 160 KTAS 160 KTAS
max. Ceiling for science   15 000 ft
Service ceiling 8230 m 25 000 ft
Take-Off distance, MTOW, ISA, MSL 625 m 2050 ft

Special Configurations:

One 2060 mm x 515 mm (frame 20 to 25) and one approx. 425mm diam (frame 25 to 27) opening in the cabin floor that can be opened/closed during flight.

Covered openings in the cabin roof:

Two bubble-windows with operator position and floor-opening for navigation-sight at the right forward side of the cabin.

Six hardpoints below the cockpit-area for external loads up to 200 Kg.

Each fuselage side (cockpit area) has three hardpoint-pairs to carry a load of 50 Kg (e.g. SLAR-antennae).

On both wings (outside of propwash) two wing-stations for external loads up to 100kg.

From the wing-stations to the cabin there are tubes for cables (power and data lines), suitable for Particle Measurement Systems (PMS).

Inlet for atmospheric chemistry sampling installed on the roof.

Mounting rails on the cabin roof (frame 14/15 and 19/20) for racking.

Oxygen system for two pilots and up to five operators, which allows flights up to 25 000 ft (5 hours max).

Isokinetic inlet for Atmospheric Sampling.

Additional avionics: