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The following testimonials to our products and service are true to the original writer. They are not edited in any way beyond correcting the occasional spelling mistake and removing private addresses.

Monday, January 31-2005

Dear manufacturers of "Slipstream" Propellers.

Our last letter on you was dated 8-7-2004, a lot of water has past under our keel since then, as well as massive quantities of water past  your propeller.

After all this use, we are still very enthusiastic about your product! The thrust is at all revs, fantastic, even in reverse she gives enough force to maneuver the boat. So, you have another satisfied and enthusiastic user in this part of the world. Under sail the difference in speed is noticeable. Lets say it in this way, the maneuverability of the boat under sail, and the rudder effect is substantially better. As well the height the yacht can sail.

In my opinion it is better to tell the aspirant buyers about this more effective rudder, and greater height to sail with a folding prop, instead of telling them about the enormous speed increase. As well is the boat making a better speed made good. So you see there are a lot of things to tell the people, and to get knowledge about all this good effects of the folded prop in relation to a solid, or even a feathering one.

And make the people believe that it is better to stop the rotating solid prop, than letting here spin. (For then the resistance is equal to the surface of the circle from the rotating blades!)

Kees M. F. Hoopman Naval Architect
Mallorca, Spain

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