[Public-List] More on the rudder discussion

Wehicks wehicks at gmail.com
Fri Jan 18 06:27:37 PST 2019


How much? 

Sent from my iPhone

> On Jan 17, 2019, at 9:09 AM, Jason S via Public-List <public-list at lists.alberg30.org> wrote:
> 
> Does anyone need for a brand new rudder shoe?
> 
> On Thu, Jan 17, 2019, 9:27 AM Michael Connolly via Public-List <
> public-list at lists.alberg30.org wrote:
> 
>> Perfect! Could not resist. See how much fun we can have with the snow
>> still on the ground
>> 
>> 
>>> On January 16, 2019 at 8:56 PM Gordon Laco <mainstay at csolve.net> wrote:
>>> 
>>>    Scoundrel!
>>> 
>>>    Gord
>>> 
>>> 
>>> 
>>> 
>>> 
>>>>>        On Jan 16, 2019, at 7:00 PM, Michael Connolly via
>> Public-List < public-list at lists.alberg30.org mailto:
>> public-list at lists.alberg30.org > wrote:
>>>> 
>>>>        Normaly rivets are set with a small air hammer set to a
>> specified pressure. The business end of the air tool can have several
>> different shaped "anvils' to conform to the factory head shape of the
>> rivet. The "dolly" or "bucking bar" can also have different shapes to allow
>> the formed head to take various shapes. This is for most riveting
>> jobs......................................of course then there is Gord who
>> enjoys the feel and satisfaction of a hand job. Oh gosh did I say the wrong
>> thing?
>>>> 
>>>> 
>>>>>>> On January 16, 2019 at 3:33 PM Rod Symmes via
>> Public-List < public-list at lists.alberg30.org mailto:
>> public-list at lists.alberg30.org mailto:public-list at lists.alberg30.org >
>> wrote:
>>>>> 
>>>>> 
>>>>>               Gord:
>>>>>               The only addition to your excellent description that
>> I would make is to use the ball end of a ball/peen hammer to round over the
>> rivet. It improves the mushrooming effect.
>>>>>               Granted, all my experience is with iron rivets. Would
>> this also be true with copper , Gord ?
>>>>> 
>>>>> 
>>>>> 
>>>>>               Cheers, Rod
>>>>> 
>>>>>               -------- Original message --------
>>>>>               From: Gordon Laco via Public-List
>>>>>               Date:16-01-2019 10:59 AM (GMT-05:00)
>>>>>               To: jonathan.adams at analyticaltern.com mailto:
>> jonathan.adams at analyticaltern.com mailto:jonathan.adams at analyticaltern.com
>> , Alberg 30 Public List -- open to all
>>>>>               Cc: Gordon Laco
>>>>>               Subject: Re: [Public-List] More on the rudder
>> discussion
>>>>> 
>>>>>               Hello Jonathan - I’ve done a fair bit of riveting in
>> boatbuilding contexts.
>>>>> 
>>>>>               Riveting is a very secure mode of fastening… it’s
>> easy to remove a rivet by either grinding or drilling off the burr on one
>> side, then driving the rivet out with a pin and hammer.
>>>>> 
>>>>>               Replacing the fitting by riveting involves use of a
>> soft metal compatible with the fitting being secured… Cut a pin such that
>> when run through the hole in the structure and fitting, about 3/16”
>> protrudes on each side. The fit in the hole needs to be tight. Place a
>> heavy mass (called ’the dolly’) on one end of the pin, and strike the other
>> protruding end of the pin with a light hammer. I’ve found that repeated
>> lighter blows with a lighter hammer works better than fewer harder hits
>> with a heavy hammer. I’ve successfully used a hammer heavier than the one
>> I’m hitting with as a good dolly. Be very sure that before each hit with
>> the hammer, the dolly is in contact with the rod/rivet. What you don’t want
>> is for the rod to get knocked through so you lose the protruding end which
>> you are trying to spread.
>>>>> 
>>>>>               Why does the rod only spread at the protruding end?
>> Because you ensured a tight fit in the hole, there is nowhere else it can
>> spread in response to the blows.
>>>>> 
>>>>>               Take care that the pin is remaining ‘centred’ with
>> protrusions as equal as possible from either side… switch the side you’re
>> hitting and the side with the dolly often. You’ll develop a spread on each
>> end of the pin which you can encourage and develop as the hitting
>> progresses. At some point the pin will become secure, and when that
>> happens, you can really start riveting. What happens as the spread on the
>> end is developing, is that metal is ‘flowing’ out of the shaft area of the
>> pin into the spread… this forces the grip of the rivet to become very
>> tight. Magic.
>>>>> 
>>>>> 
>>>>>               Gordon Laco
>>>>>               #426 Surprise
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>>>>> 
>>>>>>>>>>> On Jan 16, 2019, at 10:48 AM,
>> jreadams6 via Public-List < public-list at lists.alberg30.org mailto:
>> public-list at lists.alberg30.org mailto:public-list at lists.alberg30.org >
>> wrote:
>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>>                    All here are
>> some pics of Laughing Gull's rudder and comments. anyone have
>>>>>>> 
>>>>>>>>>>>       any knowledge of the rivetted
>> type fastenings?
>>>>>> 
>>>>>> 
>>>>>>>>>>> 
>> https://alberg30maintenance.wordpress.com/2019/01/16/rudder-work/
>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>>                    Jonathan
>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>               Jonathan Adams
>>>>> 
>>>>>>> 443-223-2534
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>>>>> 
>>> 
>> 
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