1957 Dräger Norge I

The Norwegian 1957 Norge I

Starting in 1957, Dräger, responding to a request from the Norwegian Navy, developed a variant of the successful “Lieutenant Lund II.” This new version, named the “NORGE,” was designed by Gerhard Haux, an engineer in Drägerwerk’s Department II, while production of the “Lieutenant Lund II” continued concurrently .

The “NORGE” oxygen diving apparatus had a design similar to that of the “Leutnant Lund” model, featuring the same oxygen supply system with two 0.8-liter cylinders, each with a filling pressure of 200 bar. It also retained the constant oxygen dosing of 0.9 l/min and the option to add oxygen via a bypass valve. Additionally, it included a pressure relief valve in the breathing bag, developed by Haux, which was set to release at 15-16 cm WS.

Notable modifications in the “NORGE” included:

– An enlarged scrubber with a net capacity of 3.8 liters, secured by four locking hand screws on the lid, replacing the single locking clamp used previously.

– Breathing tubes with increased flow cross-sections by approximately 60%.

– Control valves with enlarged flow cross-sections housed in a new aluminum rotary slide nozzle.

– A pressure gauge attached directly to the pressure reducer, designed to be non-foldable.

– A redesigned, simplified, and slightly larger breathing lung, without bulges at the shoulder section, offering a movable volume of 9-10 liters. Refer to Figure 48 for comparison.

These enhancements resulted in decreased breathing resistance and an increased capacity for CO2 absorption. The reduced flow rate in the larger lime pattern ensured more effective contact between the breathing gas and the soda lime, preventing inadequate CO2 absorption even at very high flow rates.

Norge I

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