Imperian German Navy seaplanes numbers 401 to 403 were the only three examples of a unique seaplane design produced for the Navy's flying service during the First World War.

[1][2][3] Production of these types commenced in April 1915 in an effort to supply the navy with a seaplane trainer of contemporary design.

[1] With the outbreak of war, the output of Germany's major seaplane manufacturers was taken up with producing front-line types, and the only trainers available were obsolete or rebuilt machines withdrawn from their original duties.

[1] Number 401 and its two siblings were delivered to the Navy in August 1915.

[1] Data from Kroschel & Stützer 1994, p.135General characteristics