Glaser-Dirks DG-300

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Glaser-Dirks DG-300
DG-300 Sintra JAguiar.JPG
Type: Glider of the standard class
Design country:

Germany Federal RepublicFederal Republic of Germany BR Germany


Glaser-Dirks (development)
Elan , AMS Flight

First flight:

April 27, 1983

Production time:


Number of pieces:


The Glaser-Dirks DG-300 Elan is a single-seat high performance glider from glass reinforced plastic (GRP) , which in the standard class (with 15 m wingspan , steady wing profile and retracting suspension ) was used. The DG-300 was designed by Wilhelm Dirks on the basis of Hansjörg stripeder's " Falcon ". The first flight took place on April 27, 1983.

The aircraft was manufactured by the Slovenian company Elan (later AMS Flight ) for Glaser-Dirks Flugzeugbau GmbH (later DG Flugzeugbau GmbH ). More than 500 of the aircraft, which has been built since 1983, have been delivered.

In addition, the DG-300 can be equipped with flat tanks and a rear tank for water ballast. A comparable aircraft is, for example, the Schneider LS4 roller shutter .


In addition to the standard version, the DG-300 Club Elan (without blow-out) and the aerobatic DG-300 Elan Acro were also offered, and the Club version also had a non-retractable landing gear. In the early 1990s, the DG-300 was modified to the DG-303. The following was new:

Shortly thereafter, the manufacturing company ELAN or AMS also took over the sale of the aircraft, DG-Flugzeugbau became the German representative. The same versions were sold as the DG-300. After a while, AMS replaced the blowout with a zigzag band . In early 2006, the 510th and final DG-303 was completed as AMS planned to produce the LS4 instead .

Since the end of 2005, under the type designation GG300, there has been a private, German-approved conversion of a DG-300 to a non- self-launching glider with a fold-out Solo 2350 auxiliary motor and Oehler folding propeller (turbo or homecoming aid).

Airworthiness instruction for the wing spar

In September 2006, while repairing a damaged DG-300, a manufacturing defect was discovered on the wing spars. This also occurred in random samples of other DG-300s. It was then in April 2007 by the DG Flugzeugbau GmbH an airworthiness directive issued after the operating limits of the aircraft have been reduced or alternatively examines the wing spars and could be repaired if negative.

Technical specifications

Parameter Data
crew 1
Hull length 6.8 m
span 15 m
Wing area 10.28 m²
Wing extension 21.91
Wing profile
Glide ratio 41 at 96 km / h and 33.2 kg / m² ( Idaflieg measurement)
42 at 122 km / h and 50 kg / m²
Slightest sinking 0.60 m / s at 80 km / h and 33.2 kg / m² (Idaflieg measurement)
Empty mass approx. 245 kg
Water ballast 130 l (optional 190 l with fin tank 5.5 l)
Max. Takeoff mass 450 kg (originally or with implemented Holm-LTA 525 kg)
Wing loading 31 kg / m² to 44 kg / m² (up to 51 kg / m² according to the Holm-LTA and earlier)
Top speed 250 km / h (originally or with performed Holm-LTA 270 km / h)
Minimum speed 65 km / h (with min. Wing loading)

See also

Web links

Commons : DG-300  - Collection of Images, Videos and Audio Files

Individual evidence

  1. a b Archive link ( Memento from March 4, 2016 in the Internet Archive )
  2. Glaser-Dirks DG-300: First flight . In: Flugrevue . No. 6 , 1983, pp. 72 .
  3. Conversion DG300 to GG300 , accessed on July 2, 2009