Originally Posted By: HerrStig
Originally Posted By: Thermo1223
Originally Posted By: HerrStig
Originally Posted By: Blaze
I want a sub with caterpillar drives like Hunt for the Red October.
Ducted props were tried and were in fact subject to low frequency "standing wave' noise. Like the sound which results when you bang your palm over a long section of pipe.
Ahh but if you remember it wasn't a prop. It had no moving parts.
It was magnetic drive, based on what I can remember being eddy currents to push the water out.
I think that was from Clancy's brain. The system the Russians actually tried used an impeller.
Nope.
It was from the brains of many theoretical physicists. From Wikipedia:
A magnetohydrodynamic drive or MHD propulsor is a method for propelling seagoing vessels using only electric and magnetic fields with no moving parts, using magnetohydrodynamics. The working principle involves electrification of the propellant (gas or water) which can then be directed by a magnetic field, pushing the vehicle in the opposite direction. Although some working prototypes exist, MHD drives remain impractical.
The first prototype of this kind of propulsion was built and tested in 1965 by Steward Way, a professor of mechanical engineering at the University of California, Santa Barbara. Way, on leave from his job at Westinghouse Electric, assigned his senior year undergraduate students to develop a submarine with this new propulsion system.[29] In early 1990s, Mitsubishi built a boat, the 'Yamato,' which uses a magnetohydrodynamic drive, is driven by a liquid helium-cooled superconductor, and can travel at 15 km/h. [30]
Russia has a great many excellent physicists and engineers.
Not too hard to extrapolate the successful development of MHD for a sub....20 years after it was demonstrated at UCSB....