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| Rudder attachment | ||
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Moderators: Winston, aew
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| Author | Post | ||
| timtune |
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 Registered Member #5728 Joined: Sun Apr 26 2020, 06:45pmPosts: 21 | As mentioned in my previous thread (Newbie with Billings Pirat) I am curious as to how to go about attaching the rudder so that it can pivot. The plans for this boat are shown in my other thread. Any help appreciated. | ||
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| aew |
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aew   Registered Member #1929 Joined: Wed Nov 30 2011, 03:05pmPosts: 2921 | Purely coincidentally, I've just been looking at a picture of a rudder. There are two posts with pictures of a Dutch fishing boat here. Have a look at the sixth picture in the second post. The bottom pieces, attached to the stern post, are the 'Pintles'. They have a pin sticking up. The pieces on the rudder are the 'Gudgeons' and have a hole to fit over the pintles. The notches in the rudder should be long enough to allow the rudder to be lifted off. | ||
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| Baggywrinkle |
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  Registered Member #5759 Joined: Sat Sep 19 2020, 03:36pmPosts: 205 | Hi Tim, I am new this forum so I have not had time to read through all the build logs. Having seen your question though, I hope this may help you out a bit. You need to make rudder gudgeons (receiver part) and pintles (pin/male part) just like for a real rudder. These can be formed from brass strip soldered to brass tube - you can get all this from a hobby supplier.  Measure the brass strips to size allowing for the bend around the tube (receiver part) and drill holes for securing pins before bending. If need telescope tubes and solder together if the outer and inner diameters are not right for the pintel sizes. That is the OD will need to match the radius/size of the back of the rudder blade, whereas the ID will need to match the pin so there is no slop. Bend the strip around the tube and solder in place, then slice/cut off the tube to the required depth to match the strips.  The pintles are done much the same except you need to have the pin fit the inside of the tube pretty closely then solder in place leaving sufficient drop to engage with the gudgeons. Locating and fitting these to the hull is the trickiest part. I found that if I taped the whole assembly in place (dry fit) with the rudder engaged by the pintles, you can then drill the pin holes and glue the strips and pin them later once the rudder is removed. I hope that makes sense? The rudder needs to have the recesses/niches cut into the back of the blade to accept the gudgeons and leave enough room to lift clear (vertically) of the pintles. Once fitted, the rudder is usually kept in place with a locking pin/block at the top of the rudder before it enters the hull (I have forgotton the technical term for this item for the moment..  I have attached some pics from my build hoping they will help - just holler if this is not enough info or you need clarification. Please note, this is just one way to do t, there may be simpler and better techniques; I know for instance, that some people cut and shape the gudgeons from brass stock complete then solder them to the strips. cheers, and good luck. Pat [ Edited Wed Sep 23 2020, 06:26am ] | ||
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