– Active light units (infra red) for "Wasserballoon"
Ing. Krewett, Ing. Rudat

– Preliminary experiments in use of "Argus" tube (as in "V-1") for sweeping
sub-sonic acoustic mines

– Hydrodynamics (Water ballistics), and effect of underwater explosions
Dipl. Ing. Snay

– Mine parachute development
Dipl. Ing. Heinrich

– Mine parachute development
Dr. Schussler

– Measurements of sea-waves and water pressure
Dr. von Klitzing, Ober Ing. Schau
(Their own extensive experiments at Skagen, Denmark)

– Oceanographic problems
Oberbaurat Hansen

– Mine-design work
Dr. Thienhaus