The Heinkel HE 1 (aka Caspar S 1) was a two-seat, low-wing
monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes.
A monoplane has inherently the highest efficiency and lowest drag of any wing con ...
floatplane, designed in 1921 by
German designer
Ernst Heinkel
Dr. Ernst Heinkel (24 January 1888 – 30 January 1958) was a German aircraft designer, manufacturer, '' Wehrwirtschaftsführer'' in Nazi Germany, and member of the Nazi party. His company Heinkel Flugzeugwerke produced the Heinkel He 178, th ...
at
Caspar-Werke.
The HE 1 was produced under licence in
Sweden for the ''
Marinen'' (Swedish Navy) in 1921 as the Svenska S.2. The HE 1 was powered by a
Maybach Mb.IVa
The Maybach Mb IVa was a water-cooled aircraft and airship straight-six engine developed in Germany during World War I by '' Maybach-Motorenbau GmbH'', a subsidiary of Zeppelin. It was one of the world's first series-produced engines designed sp ...
engine
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy.
Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power ...
; one test aircraft was powered by a
Siddeley Puma
The Siddeley Puma was a British aero engine developed towards the end of World War I and produced by Siddeley-Deasy. The first engines left the production lines of Siddeley-Deasy in Coventry in August 1917, production continued until December 1 ...
engine.
Specifications
Operators
;
*
Swedish Navy
*
Swedish Air Force
References
*
{{Swedish military aircraft designations
Low-wing aircraft
1920s German military reconnaissance aircraft
1920s Swedish military aircraft
HE 001
Floatplanes
Svenska Aero aircraft
Single-engined tractor aircraft
Aircraft first flown in 1923