Glass wing dragonfly (H201-H205)

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Glass wing dragonfly
Glass wing H-201B standard dragonfly
Type: Glider
Design country:

Germany Federal RepublicFederal Republic of Germany BR Germany

Manufacturer:

Glass wing

First flight:

October 1967

Production time:

1967-1974

Number of pieces:

600 + 1 + 2 + 1 + 176

The Libelle aircraft of the 20X series are single-seat gliders made by Glasflügel Segelflugzeugbau .

Technically speaking, the Libelle is the successor to the H-301 Libelle , which had flaps and flew in 1964. The dragonfly was designed with a wingspan of 15 meters for competitions in the standard class . Due to its low weight and well thought-out construction - it already has automatic rudder connections - it was very easy to upgrade. Due to the high-quality workmanship, the glass wing models are still very popular used aircraft even today. Today almost all types of dragonfly can be retrofitted with winglets.

Standard vial (H-201)

history

The first models of the standard dragonfly were built from 1967. The dragonfly is made entirely of fiberglass . It has a conventional cross tail and Schempp-Hirth brake flaps. Due to the low fuselage height, the pilot has to assume a semi-recumbent position, which has meanwhile become accepted for all common modern gliders. In 1969 a retractable landing gear was designed for the standard dragonfly and the wings could optionally be equipped with water tanks of 25 liters each. This variant is known as 201B. In total, a little more than 600 pieces of both models were made. Her soaring index is 98.

Technical specifications

Glass wing H201 dragonfly 3-view.svg
Parameter Data
constructor Wolfgang Hütter
First flight October 1967
span 15.00 m
Wing area 9.80 m²
Length of the trunk 6.20 m
Tail unit Cross tail
Construction GfK
Empty mass 180 kg
H-201B: 200 kg
Max. Payload 110 kg
Max. Takeoff mass 290 kg
201B: 350 kg
Wing loading 29.60 kg / m²
V min 62 km / h
V a 150 km / h
V ne 201: 220 km / h
201B: 250 km / h
V max winch 110 km / h
H-201B: 120 km / h
V max F-tow 150 km / h
Slightest sinking 0.60 m / s at 75 km / h
Glide ratio 38 at 90 km / h
profile FX 66-17 A II-182

Variants H-202 to H-204

The dragonfly has been further developed over the years and adapted to the needs of buyers. This resulted in various variations with their own names, some of which were only produced in small numbers.

  • The 202 is one of a kind. It still has the cockpit and canopy of the 201, but the wing root is higher, so that it is already a shoulder wing. The conical shape of the hull was abandoned and replaced by a round hull. The tail unit was arranged in a T-shape.
  • Only two individual pieces of the 203 were also made. They had a new front part of the fuselage, which was later used for Hornet and Mosquito. The wing comes from the standard dragonfly.
  • The 204 is also a one-off. It is essentially the same as the H-203, but the wing was equipped with trailing edge rotary brake flaps. It is very similar to the later Hornet, only the tank for the water ballast is missing.

Club Dragonfly (205)

Glass wing H-205 Club Dragonfly

history

The club dragonfly is a further development of the standard dragonfly. It was developed in the early 1970s and delivered between 1973 and 1976. The aim of the development was to offer the aviation clubs an option for beginners or pilots outside of the competition. In order to keep the acquisition costs low, a smaller hood was used and the surface was optionally not sanded before delivery. It has the wing of the standard dragonfly, but with the typical glass wing rear-edge rotary brake flaps instead of the Schempp-Hirth brake flaps. In order to simplify operation, it was equipped with a solid, spring-loaded chassis. The T-tail and the shoulder-wing design have been specially designed for field landings. In terms of its design features, the Club-Libelle was a very advanced glider at the time: automatic connections for all rudders, a sprung landing gear, the folding hood, a standard tail wheel and the large luggage compartment were by no means standard in the mid-1970s. A total of 176 aircraft were manufactured. The gliding index is 96.

Technical specifications

Parameter Data
constructor Eugen Hänle
First flight September 14, 1973
span 15.00 m
Wing area 9.80 m²
Length of the trunk 6.40 m
Tail unit T-tail
Construction GfK
Empty mass 225 kg
Max. Payload in the cockpit 110 kg
Max. Takeoff mass 350 kg
Wing loading 32-35.7 kg / m²
V min 67 km / h
V a 150 km / h
V ne 200 km / h
V max winch 120 km / h
V max F-tow 150 km / h
Slightest sinking 0.56 m / s at 75 km / h
Glide ratio 35 at 85 km / h
profile FX 66-K-17 A II-182

Web links

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Individual evidence

  1. ↑ a b History of the company Glasflügel Segelflugzeugbau GmbH / Schlattstall. Glasfaser-Flugzeug-Service GmbH , accessed on March 1, 2012 .