Heinkel HE 1

The Heinkel HE 1 was a two seat, low-wing monoplane floatplane, designed in 1921 by German designer Ernst Heinkel at Caspar-Werke. The aircraft was initially produced under licence in Sweden for the Navy of 1921. The HE 1 was powered by a 179 kW Maybach Mb.IVa engine; one test aircraft was powered by a Siddeley Puma engine.

In 1926, an all-metal version was flown as the HE 4 (Swedish designation S 4). It was tested extensively, but no further examples were built.

Operators

 * Swedish Navy
 * Swedish Air Force
 * Swedish Air Force