Olala!
I've read all the reports, amazing!
I'm speechless at the moment and it takes something!
Keep up the good work!
😮😮😮😮 Michel-C.

Would love to see some annotated photos, just to see how it shud operate ! Please ??

I made a kitchen rudder for my steam launch back in the 80’s. Still works great. I use two servos, one rod steering right and left and the other for opening and closing the clam sell. The servo for opening and closing the is mounted on a bolting shaft the connect to the two clam shell. The servo pulls the shell together rather the push them close. This way it will not bend the clamshell shafts. Hard to explain but if you want, I can send some photos🤔

Herman, good afternoon, sadly I am not able to use any of my ic engines for sailing due to them being banned almost everywhere in the UK.
But I keep them for my vintage display at various vintage shows.
So, until I win the lottery, when I will buy a lake just to sail my vintage boats, then when I'm gone my grandson will own my collection.
Cheers Colin.

Colin a good morning
You must be an extremely lucky man that you still can enjoy sailing with this engine. All over thé place in Belgium it is FORBIDDEN.

Here is my kitchen rudder system, model built in 1949 now waiting for restoration.
Not only for steering, but also controls the speed and reversing.
Don't have a suitable transmitter for it so don't know if it still works.
Engine is a 1.3cc Mills, which is a good runner after a complete rebuild, now part of my vintage motor display.
Cheers Colin.

Hi all, there is a not disimilar system called a 'Kitchen rudder'. This has 2 semicircular cups or half tubes. They are hinged at the top and bottom and can be steered like a rudder or hinge forward to slow and then reverse the boat direction.

They were used on small GB Naval pinnaces when warships carried them.
One of our club members has made a few of them and they work very well.
Roy

Hi Ed you are making a fundamental mistake! If you are trying to remember something never walk through a doorway. This will wipe your memory. Trust me it happens to me!😎
Roy

Lew, I often require memory “updates” as well but now days I am finding they take a long time and seldom deliver results. I often go out to my workshop to fetch something and by the time I get there I can’t remember what I came to fetch.😂

I believe there are many variations of Kort nozzles. Upon updating my memory I found some unusual ones made of multiple pieces welded together. The most unusual was what looked like two semicircular parts, one on each side of the propeller with small rudders fixed on the output side. The whole contraption had limited side movement for steering.

In contrast, a better performing setup is the z-drive with a propeller that runs in one direction only (for efficiency). To reverse, the dive is rotated 180 degrees.

With the depth of the Mississippi River (U.S.) varying so much most of the towboats are limited to a draft of nine feet What most people don't realize is there are large propellers under the boat, so large that the upper edge almost reaches even with the surface of the water. However, that is contained (concealed) in a large concave area in the under side of the hull. You can see that in the attached drawing is part of a complete set of plans I made with the intent of building the "M/V Arne Christiansen". (Shown with Graupner z-drives.)

Lew
Florida, USA