My pleasure, Jim. By all means please implement the arm. Here in the U.S. we typically use this method over spools. It is much more efficient and easier to work with.

Make sure you have a strong enough servo to handle the load. At the same time please also be sure to set the arm properly to allow the correct amount of "swing." It will take some trial and error to set the gear on the servo under the arm just right. Doing so will insure proper distance between close haul and a run.

Also, I have a bad back, and so do most of my friends who also sail their model boats with me here in Concord, Ca. I am the Secretary of our model club, the Concord Model Engineers. Anyway, you can fabricate a simple boat carrier for the Atlantis using seat belt material, or a wide nylon type belt. Simply connect two belts together. With a friend on the other end you can launch the boat a little easier.

Enjoy your Atlantis!

Maurice (Singingpug)

Cheers lads, l knew you wouldnt let me down. I was toying with the sail arm idea and if you dont mind Singing pug l will copy and use your idea.
once again to every body who replied your a great bunch of friendly and informative chaps, thank you Jim.

PS she is rather a large lady, not sure how long my old bones will cope with launching and retrieving her. I will enjoy her while l can.

Here's the photo of the sail rigging arm I made for the Atlantis. It works perfectly!

I have a Robbe Atlantis that is fully functional with some modifications. First, I removed the engine. It was a nuisance and caused an unnecessary battery drain.

Next, I replaced the servo's and got rid of the original spool rigging. It was complicated and constantly fowling. I replaced it with a fabricated aluminum "arm" which I attached to a slightly larger sail servo that controls all the sails perfectly. I got rid of the original large (heavy) 7.2 volt battery, and replaced it with a 4 penlight battery cartridge. This also powers the rudder servo as well. Surprisingly, it runs fine for hours!

Hope this helps!

Hi Jim
Just found an article on RC Groups that shows details of the original Robbee rigging in side the hull.
Not what I used and I did not install the Genoa but hope this helps for now

https://www.rcgroups.com/forums/showthread.php?2687329-Robbe-Atlantis-HELP

Hi Jim
I also acquired an Atlantis and eventually managed to rig the sails. My model is stored in a local lockup so I can't look right now but I will take some pics and draw a diagram next time I visit the lockup. I didn't have the plans but the model was complete. Its heavy and I removed the lead keel and cut in half so I could remove for transport. I did manage to find details on-line but didn't keep a record. I remember pulleys but until I look I am unsure. It looks magnificent on the lake but is a handful.
Sorry I can't answer quicker but I will share when I get the details. Pic of my model attached
dave976

I'm jealous! I had an offer of an excellent one at a knock down price but I just could not manage her or store her without trouble from SWMBO.
Roy

Sorry auto text strikes again should read Krick

Hi I think Robbie boats were taken over by Knick,but didn’t continue the model ,but they may be able to help

Jimdogge à good morning
I just found out yesterday because I had the same problem
When you go onto the web and typ Modelboat sailwinch or vice versa
You get the different manufacturers and the scheme how to connect the wires/cables from the sails to the servo
Success