[DoughtyOne]

I like the looks of that.

The prop system is intriguing.

[hosepipe]

Yeah looks quiet.. no cavitation..

[SpirituTuo]

I could be wrong, but I don’t that is the screw, rather I think those act as dive planes and rudders.

[LonePalm]

What you are seeing is the aft stabilizers and hydroplanes. The propeller is shrouded.

The prop blades are shrouded to protect against any nicks and to avoid giving away any information about the acoustic characteristics of the boat's drive train.

"Ceterum censeo 0bama esse delendam."

Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)