Sablatnig SF 1
| Sablatnig SF 1 | |
|---|---|
| Type: | Maritime training and reconnaissance aircraft |
| Design country: | |
| Manufacturer: |
Sablatnig / Rethel |
| First flight: |
1915 |
| Commissioning: |
October 1915 |
| Production time: |
1915 |
| Number of pieces: |
1 |
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The Sablatnig SF 1 was a German seaplane from the First World War and the first type designed for the Imperial Navy by the aircraft designer and pilot Josef Sablatnig . According to the pattern assignment issued at the time, it fell into the category of the B types, ie the "unarmed, two-seat float planes".
development
Josef Sablatnig volunteered for the navy after the outbreak of war and was assigned to the Kiel-Holtenau sea pilot station in August 1914 . At this point in time, the development of naval aviation was still in its infancy and Sablatnig, who had already gained some experience as a designer, was commissioned at the beginning of 1915 to develop a suitable sample based on his suggestions for improving the aircraft types used. On leave from military service, he turned to Bootsbau Rethel in Berlin-Friedrichshagen with his designs, asking for support in the construction of the aircraft, which was initially known as the WF 1. The associated metal components were made by Richard Goetze KG in Berlin-Treptow . On August 26, 1915, the completed SF 1 was handed over to the Navy and was given the Navy number 490. In October of that year, the acceptance flights were carried out at the Seaplane Test Command in Warnemünde and the aircraft was then mainly flown for school work. The successful construction resulted in further orders, which led to the series-produced successor SF 2 .
construction
The SF 1 was a two-legged, tensioned double - decker in wood construction with fabric covering. The structure had a staggering of 20 °, a sweep of 3.5 ° and I-posts arranged in pairs. As a special feature, the rear struts of the floating mechanism were provided with strong springs , which were compressed by the weight of the aircraft when rolling on the water, but increased the angle of attack of the two swimmers during take-off , which should contribute to a shortening of the take-off distance when the water surface was moving.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 2 |
| span | 19.1 m |
| length | |
| height | 4.35 m |
| Empty mass | 1015 kg |
| Takeoff mass | 1650 kg |
| drive | a water-cooled six - cylinder in - line engine with a rigid integral propeller (Ø 2.80 m) |
| Type | Mercedes D III |
| rated capacity | 160 hp (118 kW) at 1420 rpm |
| Top speed | 125 km / h near the ground |
| Rise time | 10 min at 1000 m altitude |
| Armament | - |
literature
- Karl-Dieter Seifert: Josef Sablatnig, Sablatnig Flugzeugbau and its chief designer Hans Seehase . 1st edition. Nora, Berlin 2002, ISBN 3-935445-63-6 , pp. 33-35 .
Individual evidence
- ^ Günter Kroschel, Helmut Stützer: The German military aircraft 1910–1918 . Mittler, Herford 1977, ISBN 3-920602-18-8 , pp. 135 .