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DFS 108 Weihe / 108-49 Grunau Baby / 108-14 Schulgleiter (SG) 38

Schweyer Weihe

 

  DFS-Weihe
 
The Weihe single-seater high performance competition sailplane was designed for the DPS by Ing Hans Jacobs, who was responsible for so many of the leading prewar German types, such as the Meise, Kranich, Rhonadler and  Rhonsperber. The Weihe was developed from an earlier gull wing design known as the Reiher and first flew in 1938,
being placed fourth in the Rhon competition of that year.
 
Produced in large numbers by the Jacobs Schweyer factory and elsewhere in Germany before and during the war, it soon aroused the interest of prospective customers and more than 550 were eventually built in Spain, France, Sweden and Yugoslavia as well as Germany from the original German plans, and including a few built after the war as the Weihe 50 by the Focke-Wulf company when it was reconstituted at Bremen Airport as Focke-Wulf GmbH.
 
The Weihe remained in the front rank of competition sailplanes for a very long time; it took first place in the 1948 World Gliding Championships flown by Per-Axel Persson of Sweden, and at these championships no less than 13 out of 29 competitors were flying Weihes. The type also took the first two places in the 1950 World Championships and third place in the 1954 World contest, being able to hold its own with the many more advanced postwar designs then in use. Persson, who had won the 1948 World contest, had set a world height record of  26,411ft in his Weihe the year before, and in 1959 a Weihe set another height record of 31,709ft.
 

DFS-Meise-3

 

The Schweyer version differed slightly from the D.F.S. model by having a slightly longer nose and larger canopy. Originally produced with D.F.S. airbrakes of limited effectiveness, some late production examples have Schempp-Hirth type airbrakes.
 
 sch-wei
Schweyer Weihe
 
The 18m span wings have a thin Gottingen 549 aerofoil section, and small spoilers are fitted just inboard of the ailerons. For rigging the high cantilever wings are fitted into the fuselage with their tips on the ground, the tips then being raised and the wings locked into position with a bolt. The Weihe is of conventional wooden construction; the fuselage is rather long with a narrow cross section that makes for a somewhat cramped cockpit. The canopy was originally of the multi-framed type with a sliding window, but the later Weihe 50 had a more streamlined one-piece canopy. Take-offs are made on a jettisonable dolly wheel landing gear and there is a landing skid under the forward fuselage.
 
The Focke-Wulf produced Weihe 50 had a blown canopy, and some of which had a fixed main wheel instead of a jettisonable dolly. Nine Weihe 50s were built postwar by Focke-Wulf GmbH, the prototype of this series first flying on 14 March 1952.
 
Approximately 400 were built, 270 by Schweyer.

 

dfs108-49grunaubaby
DFS 108-49 Grunau Baby
 

DFS 108 Weihe
Wingspan : 59.055 ft / 18.0 m
Wing Area: 18.39 sq.m /198 sq.ft
Aspect ratio: 17.46
Airfoil: Go 549-M2
Length : 26.247 ft / 8.0 m
Empty Weight: 230 kg / 508 lb
Payload: 105 kg / 230 lb
Gross Weight: 335 kg / 738 lb
Wing Load: 18.22kg/sq.m / 3.7lb/sq.ft
Vne: 83 mph.
Landing speed : 14 kts / 26 km/h
Cruising speed : 38 kts / 70 km/h
L/DMax: 29 76 kph / 41 kt / 47 mph
MinSink: 0.61 m/s / 2.0 fps / 1.18 kt
Glide ratio : 21.2
Crew : 1
 
DFS108-49Grunau Baby
Wingspan 13.6 m (45 ft)
Length 5.9 m (20 ft)
Height 1.5 m (4 ft 11 in)
Empty weight 160 kg (353 lb)
 
Schleicher Weihe 50
Wingspan: 59.055 ft / 18.0 m
Wing area: 197.4 sqft
Aspect ratio: 17.7
Length: 26.706 ft / 8.14 m
Empty weight: 507lb
Max take off weight: 738.7 lb / 335.0 kg
Max. speed: 92 kts / 170 km/h
Min sinking speed: 1.9ft/sec at 37.5mph
Best glide ratio: 29:1 at43.5mph
Crew: 1
dfs108weihe
DFS 108 Weihe

 

 DFS-Weihe.jpg

 

The Weihe single-seater high performance competition sailplane was designed for the DPS by Ing Hans Jacobs, who was responsible for so many of the leading prewar German types, such as the Meise, Kranich, Rhonadler and  Rhonsperber. The Weihe was developed from an earlier gull wing design known as the Reiher and first flew in 1938,

being placed fourth in the Rhon competition of that year.

 

Produced in large numbers by the Jacobs Schweyer factory and elsewhere in Germany before and during the war, it soon aroused the interest of prospective customers and more than 550 were eventually built in Spain, France, Sweden and Yugoslavia as well as Germany from the original German plans, and including a few built after the war as the Weihe 50 by the Focke-Wulf company when it was reconstituted at Bremen Airport as Focke-Wulf GmbH.

 

The Weihe remained in the front rank of competition sailplanes for a very long time; it took first place in the 1948 World Gliding Championships flown by Per-Axel Persson of Sweden, and at these championships no less than 13 out of 29 competitors were flying Weihes. The type also took the first two places in the 1950 World Championships and third place in the 1954 World contest, being able to hold its own with the many more advanced postwar designs then in use. Persson, who had won the 1948 World contest, had set a world height record of  26,411ft in his Weihe the year before, and in 1959 a Weihe set another height record of 31,709ft.

 

The Schweyer version differed slightly from the D.F.S. model by having a slightly longer nose and larger canopy. Originally produced with D.F.S. airbrakes of limited effectiveness, some late production examples have Schempp-Hirth type airbrakes.

 

 Sch-wei.jpg 3

Schweyer Weihe

 

The 18m span wings have a thin Gottingen 549 aerofoil section, and small spoilers are fitted just inboard of the ailerons. For rigging the high cantilever wings are fitted into the fuselage with their tips on the ground, the tips then being raised and the wings locked into position with a bolt. The Weihe is of conventional wooden construction; the fuselage is rather long with a narrow cross section that makes for a somewhat cramped cockpit. The canopy was originally of the multi-framed type with a sliding window, but the later Weihe 50 had a more streamlined one-piece canopy. Take-offs are made on a jettisonable dolly wheel landing gear and there is a landing skid under the forward fuselage.

 

The Focke-Wulf produced Weihe 50 had a blown canopy, and some of which had a fixed main wheel instead of a jettisonable dolly. Nine Weihe 50s were built postwar by Focke-Wulf GmbH, the prototype of this series first flying on 14 March 1952.

 

Approximately 400 were built, 270 by Schweyer.

 

 


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