The Shipyard ( Dry Dock ): Builds & Questions > Yachts and Sail

J Class Model Yacht & J Class HUlls

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roycv:
Hi sailorgreg. you are to be congratulated on a nice neat system looks well thought out.  Perhaps the original enquirer might not be aware that this comes out as a unit and is posted into the hull when in use?
I have a 40 inch loa Endeavour J Class and I do wonder if my standard servo copes with the load of the rudder as there is so much sail pressure on the yacht.  The rudder has had to be increased in area as well.  My J class is a sailing version of the Amati 1 : 35 kit.

Also Rocbaroque, re the main sail and boom.  Most models have the main boom shortened so that it lies in board of the stern.  This enables the model to have a back stay. 

On the full size there were two rear stays per side and the leeward set were loosened to enable the boom to swing across them when on a reach.

Best regards
Roy

MartinH:
I recently finished my first model yacht, one of Alan Horne's 60" J class with a Genoa. She sails as if on rails, lovely boat. https://www.youtube.com/watch?v=G4q1LPFBB04

howie55:
Hi Martin, great looking boat and a lovely video, how deep is your keel and how much lead is she carrying, she sails well on a light wind
Howie55

howie55:
Hi Martin
 I would also be interested in the sail set up to the servo, can you outline a sketch please
Regards Howie55

MartinH:
Hello Howie, I am really poor at drawing however I have made a few videos of my running rigging on this boat TOPAZ and a new J, Lionheart that I am working on at the moment with an experimental removable running rigging setup. The videos are for me to remember what I did so are probably a bit dull but I think you will be able to see what you need to see and hope you find something useful. Here are the links. I used about 10.5 kgs of lead ballast in Topaz which I think is a bit too much as she sits pretty low in the water but on the plus side it means she isn't too tender, for Lionhearted I will try with about 7kgs installed with provision for extra lead to be added as required. Hope this helps.


TOPAZ running rigging



https://www.youtube.com/watch?v=PyxDaUyCKbo


and here is the Lionhearted stuff.


https://www.youtube.com/watch?v=GrZky0K88aw


https://www.youtube.com/watch?v=-VK1ab8ZWzg


https://www.youtube.com/watch?v=piw0gRY8TQ4


https://www.youtube.com/watch?v=wBskW8i1rtM


https://www.youtube.com/watch?v=Hrudz28PID0

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