August Howaldt

Born in Braunschweig, the son of the silversmith David Ferdinand Howaldt, with whom he got his first practice working in metal, Howaldt made an apprenticeship in Hamburg and became a practical mechanicus.

In Kiel he founded together with the Kiel entrepreneur Johann Schweffel [de] the "Maschinenbauanstalt Schweffel & Howaldt", a company initially building boilers for industry and the new railroad companies in between Hamburg and Kiel and agricultural machinery for the surrounding estates in Holstein.

In 1849 Schweffel & Howaldt built its first steam engine for naval purposes for the Von der Tann, a gunboat for the small navy of Schleswig-Holstein, and the Brandtaucher, the first German incendiary diver or submarine designed by Wilhelm Bauer.

The Brandtaucher is today an exhibit of the German Forces Military History Museum in Dresden.

The firm merged with Georg's shipyard in Kiel in 1889 to become Howaldtswerke AG, today known as Howaldtswerke-Deutsche Werft (HDW).