Chum444, is your "stuffing box" the size of the large diameter tube under the large filler and the rest of the shaft slips into the shaft tube? If so, the sealing area seems kind of small.

My preference is to have a fairly large sealing area. For example, using the attached drawing, the two ends where the shaft slip fits into are each about 5/8 inch long leaving a long void between the shaft OD and the tube's ID. [EDITED: this area is filled with the sealant lube.] Thus I have no problem with leakage when the entire shaft is below the waterline.

Lew
Florida ⛱️, USA 🇺🇸

Also... as you can see in the photo, the prop shaft is horizontal and sits about 2 inches (50mm) below the waterline. No leaks if you make the stuffing box long enough and use the right sealant lube.
Lew
Florida ⛱️, USA 🇺🇸

MartinH2
Madre Madonna sancta Maria
I do love these old fashioned sailing yachts. They sail like queens onto the water. I wish I owned one
Very well built yachtsman👍👍👍

Another vid from my slipper. I have cut ventilation slots into the bonnets to try and keep the "workings" a bit cooler and she only tripped out once. A very light wind day but good practice for stronger stuff at some stage.😎

You guys really know how to rub it in, What with various problems I am hours and hours from finishing my model which originated from the Inga. I am currently decking, sail making as well as all of the many jobs needing completion before a hoped for launch date.
I hope to post some photos soon meanwhile I hope that you both enjoy a session of fair wind sailing as well as calm.
All the very best ChrisG

My Inga is still in its box in the boat shed as yet unmade. If mine ends up looking half as good as that I’ll be well pleased.

Simply...

It looks real doesn’t it?

…And some people just stop at a bear 🐻 …

A stout looker and very Badass! Love it! I want one!!!!!

planes well,but two months! did you sleep at all? 😊

Very nice,all you need now is something a little larger to sail with her.

Very nice,all you need now is something a little larger

Great looking shark. Does he eat people too?

Commodore H. You do know sharks dont generally eat people? But this one is Vegan so it doesnt eat meat 😂

That is the best looking yacht I’ve seen to date and sails so well on virtually no wind.

The prototype J Class yachts were a class for the Americas Cup back in the 1930s. They were over canvassed and could only sail in less than 20 mph winds!

All of the original were metal hull yachts using the rising aircraft industry design teams for maximum strength against lightness of hull. In the case of the British Endeavour of 1934 she also had to be sailed across the Atlantic to get to the competition! If you look aft on the yacht there is a discrete black hole and this is where the mizzen mast was set for the journey.

The class had a formula which traded off hull length against sail area plus some stuff in between. A couple of hulls have recently been built one of laminated wood but otherwise those 'rescued' have had to be re-fitted to modern standards.
The Endeavour now has an engine with prop in the cut out rudder area and floats a foot lower on the waterline.

One of my yachts is the 1 : 35 scale Amati Endeavour kit modified to take to the water and I found the quadrilateral jib makes her look really good on the water. But as I say there is so much sail are that even at this size there is too much. I set her up to run with local expected breezes without the quad sail and she goes well. When there is a light breeze the quad can go on and I use the rudder to give some weather helm so she is under control.

It can be seen from the hull design that the rudder is sloped away at an acute angle and this can be a problem! Consider the hull heeled over 20 degress and you will see the rudder no longer operates in a directional way but just makes the aft of the yacht rise up and down, so you have lost control!

Therefore the yacht needs to be operated close to the vertical position. The extreme of this is the modern planing cup yachts which only work upright with a mainsail angle of just a few degrees.

I have added the 3rd. photo as it shows the detail of the mast. On the model this is a 'stressed' ally extrusion mast. The cross-trees are scale and the wire shrouds do strengthen the mast. The mast and sails are stored separately in a sail box.

When on static display I have a crew, nice and easy at this scale! There was a class system among the crew, the floppy (Rupert the bear) white hats are the crew the proper seamans caps are the officers. When at sea there were 22 crew on board I have about 9 on show. Ca'nt afford any more.

Roy