[brian eiland]

To be installed on the new Panamax 'super-ketch'

"It’s not the only movable appendage below the waterline. Like an increasing number of new yachts, the Panamax ketch will take advantage of the advances in diesel electric power generation , in this case designed by MR Fertigung-Technologie GmbH, a German company based in Rostock. This allows the use of two retractable, electrically driven propellers developed by the award-winning Dutch company Van der Velden. By swinging or retracting the props into the hull the yacht's underbody will become perfectly flush when sailing, further enhancing -performance

Instead of using a conventional engine for propulsion, the Panamax will befitted with a number of generating sets (the likelihood is four) which, as Erik Wassen put it: “Will provide a power sharing opportunity with a priority system.”

In other words the generating sets will automatically deliver power to the numerous systems precisely when they want it and at sufficient levels, whether it be the hydraulic pumps for the big winch packages, domestic power to run the hotel systems or power for propulsion. Heavy battery banks are limited to emergency sets.

The generating system can devote all its energy to the retractable hubless props—the blades of the propellers are set on the inner surface of the circular units, which house the electric motors themselves instead of on a central hub."

...more
http://www.ybw.com/yw/blog/200700281...vid_glenn.html

http://www.balticyachts.fi/documents/Pressrelease.pdf