Papenberg instrument
The Papenberg instrument is a measuring device invented between 1935 and 1941, which was used on submarines and is still used today in boats of submarine class 206 in order to keep the boat at the same depth as possible for the use of the periscope or snorkel to hold, i.e. without the tower with the bridge breaking through the water surface or the snorkel and the periscope with the upper prism submerging.
A vertical sight glass shows the position of the boat in relation to the water surface by means of a water column , for better orientation the silhouette of the tower with extended periscope / snorkel is shown next to the sight glass . Since the water column shows current pressure changes more closely and more precisely than the depth gauge , it is possible for the helmsman to counter any changes in the depth of the boat earlier and more precisely by operating the depth rudder or correcting the trim .
The device can be found between the two steering positions of a submarine.
The Papenberg instrument was named after its inventor, the German naval engineer Heinrich Papenberg (1876 – after 1941), most recently as a corvette captain at the Navy High Command (OKM). On behalf of the Ingenieurskantoor voor Scheepsbouw (IvS) Papenberg was involved as chief engineer in submarine developments in Turkey, Spain and Finland as well as in the construction of the new submarines of the Navy from 1935.
literature
- Lars U. Scholl (Ed.): History of technology in industrial shipbuilding in Germany , Volume 1: Merchant ships, naval surface ships, submarines . Kabel, Hamburg 1994, ISBN 3-8225-0270-7 , p. 183.