Focke-Wulf S 1

Focke-Wulf S 1
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Type:	Trainer aircraft
Design country:	German Empire
Manufacturer:	Focke-Wulf
First flight:	1925
Number of pieces:	7th

The Focke-Wulf S 1 was a training aircraft made by the German manufacturer Focke-Wulf .

history

The Focke-Wulf-S 1 was created in 1925 as a direct successor to the Focke-Wulf A 7 . In 1926 it became the S 1a, five of which were built, and later developed into the Focke-Wulf S 2 , which had identical dimensions, although the wing of the S 2 was now arranged on struts above the heads of the pilots. The S 2 had its maiden flight on November 30, 1927 with pilot Edzard on board. The machines did not achieve economic success, which was due to the poor view of the ground from the cockpit and the strong competition from Klemm and Raab-Katzenstein .

On February 6, 1927, Willi Steinkrauss landed the S1 with the registration number D-790 as the first in winter on the deeply snow-covered Brocken .

construction

The S 1 was a wooden shoulder wing without struts and a tombstone with a Zanonia wing. The seats were arranged next to each other in the center of gravity. A Siemens & Halske Sh 5 radial engine with 63 kW was used as the drive for the S 1a , and an example called the S 1b was given a Junkers L 1a with 63 kW. A Sh 11 with 60 kW power was used for the S 2, which increased the cruising speed of the S 2 to 135 km / h.

Technical specifications

Parameter	Data (S 1)	Data (S 1a)	Data (S 1b)
crew	1
Passengers	1
length	8.10 m
span	12.0 m
height	2.30 m
Wing area	22 m²
Wing loading	30 kg / m²		32 kg / m²
Power load	12 kg / hp		9 kg / hp
Preparation mass	470 kg	510 kg
Takeoff mass	670 kg	740 kg
Fuel mass	50 kg		70 kg
Engine	Siemens & Halske Sh 10 with 70 HP (51 kW), later Sh 4	Siemens & Halske Sh 5 with 85 PS (63 kW)	Junkers L 1a with 85 PS (63 kW)
Top speed	130 km / h	140 km / h
Cruising speed	120 km / h		135 km / h
Landing speed	50 km / h	55 km / h
Climbing time to an altitude of 1000 m	12 min	10 min
Service ceiling	3000 m	3500 m	3600 m
Range		350 km
Take-off run	125 m

Web links

Individual evidence

↑ FliegerRevue February 2010; Pp. 56-58; Focke-Wulf's birds
↑ Gerd Kley: In two world wars. The eventful life of Willy Steinkrauss . In: FLiEGERREVUE X . No. 73 . PPV Medien, 2018, ISSN 2195-1233 , p. 10 ff .
↑ ^a ^b ^c Helmut Stützer: The German military aircraft 1919–1934 . E. S. Mittler & Sohn, Herford 1984, ISBN 3-8132-0184-8 , p. 182 .
↑ ^a ^b ^c ^d ^e ^f ^g K. Grasmann (Ed.): Airplane type tables. DMZ 1925-1927 . 1977 (facsimile reprint of Deutsche Motor-Zeitschrift 16/1925).

[FR02/10-1] FliegerRevue February 2010; Pp. 56-58; Focke-Wulf's birds

[2] Gerd Kley: In two world wars. The eventful life of Willy Steinkrauss . In: FLiEGERREVUE X . No. 73 . PPV Medien, 2018, ISSN 2195-1233 , p. 10 ff .

[Stützer,_Militärflugzeuge-3] Helmut Stützer: The German military aircraft 1919–1934 . E. S. Mittler & Sohn, Herford 1984, ISBN 3-8132-0184-8 , p. 182 .

[Typentafel_DMZ_16/1925-4] ↑ ^a ^b ^c ^d ^e ^f ^g K. Grasmann (Ed.): Airplane type tables. DMZ 1925-1927 . 1977 (facsimile reprint of Deutsche Motor-Zeitschrift 16/1925).