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Rim Driven Propulsion is a 'Silent Drive' (Patreon)

Published:
2020-04-26 15:19:34
Imported:
2026-06
Tags:

Content

RDP has no mechanical link to the engine room of a submarine. A nuclear powered or electric submarine powers the motor that is housed in the sheath of a pump jet.  The electric drive has no mechanical link, just an energy field turns the propeller without a shaft.

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Comments

Kjell Anders Waage-Pettersen

Would such a system only be useful for slow speeds? Or could you actually use this as the main propeller of a sub?

chris goffa

This is only as silent as the roller bearings that support the state ring/rotating assembly, also there will be thrust bearing issues for both forward and reverse

Robert Sanges

I could envision a 'maglev' concept used as thrust bearings with no physical contact between the surfaces. I have no idea if it has this.

PAUL LIM

Fluid dynamic bearing would be a more suitable choice for this than roller or magnetic bearings. These types of bearing would also be suitable as the thrust bearing.

Raven Coldheart

The 212 A uses only an electric motor for it's propulsion, the Dieselmotors are only electric generators.

Whitzwolf

So is this what the Red October used? :P

The Wells Report

Actually, RO used a Magneto-Hydrodynamic Drive system that used sea water as the propulsive fluid....impelling it along equidistant drive tunnels. The flaw was the length of the tunnels which resonated with the dual electromagnetic fields and sea water flow velocities....With the vibrations variable based on salinity. Soviet engineers were able to partially dampen the resulting harmonics by carefully regulating the length of Captain Ramius' haircut....an effect that interfered with the skipper's medula oblongata causing a Scottish lilt to his otherwise perfect Russian. Coming up....We'll discuss the Irradiated Mutant Hamster Drive that propelled Seaview....

The Wells Report

Special thanks to Saturnax for supplying an engineering diagram, and a picture of a retired Hamster Drive Unit. Unfortunately, I'm having difficulty adding them to this narrrative..... ;-(