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Glaser-Dirks DG-1000


Long term plans for DG Flugzeugbau were to design and construct a a two seater glider, the DG-1000 - and from 2009 on the DG-1001.

The Airfoil is a laminar wing section designed by Horstmann/Quast from DLR Braunschweig. The Technical University of Delft completed the design with the addition of winglets and optimizing the wing- fuselage intersection. The wing section is slightly less efficient at best L/D, however much better above 160 km/h. This was combined with very docile stalling characteristics and low bug and rain sensitivity.

The DG-1000 can be flown with 2 wing-spans. For easier rigging each wing features a parting device at about the 17.2 meter point. For flying at the 18 meter span a set of 0.4 meter long wing tips with "miniwinglets" are added (similar to the standard DG-800 18m tips). This configuration is designed to produce good rolling qualities and predictable flight behavior.

For cross-country flying the 20m wing tip extensions with integral winglets are added.

In addition the four-part trapezoidal wing of the DG-1000 has a small advantage over a two-part trapezoidal plan form at low speeds. The wings of the DG-1000 wing are about 89 kg. The fuselage incorporates a high seating position of the rear seat and a two-piece canopy. The landing gear has a shock-absorbing, new mechanism providing high comfort. One wheel extends forward from the landing gear compartment beyond the centre of gravity. The DG-1000 therefore tends to sit up, even with a pilot in the front cockpit. The sudden pitch up on winch launch is avoided because the glider always rests on the tail wheel. The big spring gives comfort during taxiing and the wheel comes with a hydraulic disk brake.

The higher weight for the tail wheel is easy to handle with a towing device made by COBRA-Trailer.

The sailplane has been designed with new profile sections and optimized to the size of the wings. There is a compartment in the vertical fin for ballast weights which is accessible via a removable panel. The wing-fuselage intersection was optimized for optimal boundary layer conditions with special airfoils in this area. Winglets are standard for the 20m span which performance-wise will result in a wingspan of approx. 21 meters.

The drag of the nose wheel has been eliminated. From the beginning the DG-1000 was planed with an engine - as a self-launcher or as a Turbo-version. The maiden flight did not occur until July 28th, 2000.  

The DG-1001S is the standard model with a 20 m span, winglets, retractable main gear, trim box, and water ballast. Additional there is an option for the landing gear of the DG-505 Orion.


For this variation wing tips for an 18 m wingspan are available.  1.4 meter extensions, including winglets are available as options. In this version the DG-1000 is a very good aerobatic trainer. The extensions transform the ship into a high-performance cross-country machine.

DG-1001S Club

A less expensive entry model, the span is fixed at 18 m, the gear is non retractable, and there is no water ballast system. The Club Model can be ordered with "normal" retractable gear, water ballast system, and with removable tips.  This gives the option of  later  adding the wing extensions, including winglets thus giving a complete DG-1001S-18/20m.

The motorized version as a Turbo with a wing span of 18 or 20 m was available since spring 2005.
The DG-1000, with the help of the trim box and fin tank, can be set up with a suitably rearward C.G. for spin training.

The motorized version as a Self Launcher with a wing span of 20 m was available since autumn 2009.


Wing span: 20m / 65.6ft
Wing area: 17.51sq.m / 188sq.ft
Empty Weight: 410kg / 902lb
Payload: 750kg / 1653lb
Gross Weight: 42.8kg /
Wing Load: 160kg /sq.m / 8.76lb/sq.ft
Water Ballast: 352lb
L/DMax: 1/46.5
MinSink: .51mps/ 100.3 fpm
Aspect ratio: 22.84
Seats: 2

DG-1001S 18m
Wingspan: 18 m / 59,1 ft
Wing area: 16,72 sq.m / 180 sq.ft
Aspect ratio: 19,38
Length: 8,66 m / 28,4 ft
Fuselage width: 0,73 m / 2,4 ft
Fuselage height: 1,0 m / 3,3 ft
Tail wingspan: 3,2 m
Empty weight with  
min. instruments: 400 kg / 882lb
Wing loading with 80 kg loading: 28,7 kg/sq.m / 5,87 lb/sq.ft
Max. TOW: 750 kg / 1653 lb
Max. wing loading: 44,9 kg / sq.m / 9,20 lb/sq.ft
VNE: 270 kph / 146 kt
Acrobatic: unlimited

DG-1001S 20m

Wingspan: 20 m / 65,6 ft
Wing area: 17,51 sq.m / 188 sq.ft
Aspect ratio: 22,84
Length: 8,66 m / 28,4 ft
Fuselage width: 0,73 m / 2,4 ft
Fuselage height: 1,0 m / 3,3 ft
Tail wingspan: 3,2 m
Empty weight with  
min. instruments: 410 kg / 902lb
Wing loading with 80 kg loading: 28,0 kg/sq.m / 5,73 lb/sq.ft
Max. TOW: 750 kg / 1653lb
Max. wing loading: 42,8 kg / sq.m / 8,76 lb/sq.ft
VNE: 270kph / 146 kt
Acrobatic: limited
Best L/D with max. TOW: 1:46,5
Min. sink (W= 625 kg): 0,51 m/sec / 100,3 ft/min



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