[Rhodes22-list] Fractured stern plate.
Michael D. Weisner
mweisner at ebsmed.com
Sun Sep 26 22:46:39 EDT 2010
Pat,
If you want the plate to last, have it "clear anodized"
(http://www.superiormetals.us/anodized-aluminum-applications-marine.htm .)
If Stan can't have it done, just about any machine shop can.
Anodizers close to Maple Lake, MN: http://tinyurl.com/2f6y4w5
Anodize Inc
1102 1st St NE, Buffalo, MN 55313-2528
(763) 682-0400
Mike
s/v Shanghai'd Summer ('81)
Nissequogue River, NY
From: "Pat & Mary Ann" Sunday, September 26, 2010 10:31 PM
> Thanks for the suggestion Rummy. I sail on a fresh water late in
> Minnesota
> called Maple Lake. I'll probably coat the aluminum before I install it.
> Pat.
> ----- Original Message -----
> From: <R22RumRunner at aol.com>
> To: <rhodes22-list at rhodes22.org>
> Sent: Sunday, September 26, 2010 11:56 AM
> Subject: Re: [Rhodes22-list] Fractured stern plate.
>
>
>> If you are going to use aluminum, remember that salt water will attack it
>> very quickly. I would give it several coats of clear lacquer or some
>> other
>> coating to protect it from corrosion. The corrosion won't affect it's
>> strength for many years, it's just a visual thing.
>>
>> Rummy
>>
>>
>> In a message dated 9/26/2010 12:46:15 P.M. Eastern Daylight Time,
>> pmadevig at gra.midco.net writes:
>>
>> Stan suggested I use aluminum for the replacement of the fractured stern
>> plate, so that's what I'll use. Should be ready by spring.
>> Pat----- Original Message -----
>> From: <R22RumRunner at aol.com>
>> To: <rhodes22-list at rhodes22.org>
>> Sent: Sunday, September 26, 2010 7:52 AM
>> Subject: Re: [Rhodes22-list] Fractured stern plate.
>>
>>
>>>I recently ordered some UHMW poly ethylene from Norva Plastics. I told
>> them
>>> what I needed, what it was going to be used for and they cut the piece
>>> to
>>> size and shipped it to me very quickly and at a reasonable price.
>>>
>>> Rummy
>>>
>>>
>>> In a message dated 9/23/2010 8:13:11 P.M. Eastern Daylight Time,
>>> sprocket80 at mail.com writes:
>>>
>>>
>>>
>>>
>>> Pat,
>>>
>>> If this is not a warranty repair by GB and you are going to fix it
>>> yourself, I would recommend NorVa Plastics in Norfolk, Virginia.
>>> http://www.norvaplastics.com/
>>>
>>> You can send them a sketch, the old part, or if you are really
>>> computer
>>> savvy, a CAD file. The will make the part from the material of your
>>> choosing
>>> (UHMWPE?) and ship it to you.
>>>
>>> Todd T.
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: Pat & Mary Ann <pmadevig at gra.midco.net>
>>> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
>>> Sent: Wed, Sep 22, 2010 9:56 pm
>>> Subject: Re: [Rhodes22-list] Fractured stern plate.
>>>
>>>
>>> Mike
>>> Thanks for the thoughtful message. I'm planing to have the problem
>> plate
>>> replicated over the winter so it's ready to go in the spring.
>>> Pat.
>>> ----- Original Message -----
>>> From: "Michael D. Weisner" <mweisner at ebsmed.com>
>>> To: "The Rhodes 22 Email List" <rhodes22-list at rhodes22.org>
>>> Sent: Wednesday, September 22, 2010 10:09 AM
>>> Subject: Re: [Rhodes22-list] Fractured stern plate.
>>>
>>>
>>>> Hi Pat,
>>>>
>>>> As an engineer, the problem appears to be caused by one (or more)
>>> problems
>>>> as follows:
>>>> 1. Motor weight exceeds design specification
>>>> 2. Live load (motor, waves, wind, etc.) exceeds design
>>> specification
>>>> 3. Improper structural material formulation or specification
>>>> 4. Damage or abuse (backed into fixed object, collision, etc.
>>>> 5. Storm damage
>>>>
>>>> Since I must assume that Stan built the motor lift and provided the
>>>> engine,
>>>> one must assume that #1 is out. As good as Stan is, engineers do
>> revise
>>>> their designs to correct "oversights." It is entirely possible that
>>>> as
>>>> the
>>>> 4-cycle electric start engine weights continue to increase, the
>>>> design
>>>> of
>>>> the lift may need to be redesigned (#1, #2 & #3.) An aluminum plate
>>> would
>>>> seem to indicate that such a process has already been started at
>>>> GBI.
>>>>
>>>> If designed properly, you should not be capable of damaging the lift
>> by
>>>> having "raised the Yamaha too high." IMHO, the only time that you
>> could
>>>> be
>>>> at fault would be in cases like #4.
>>>>
>>>> Is it safe to sail? Well, make sure that your safety chain is in
>>>> good
>>>> shape
>>>> and of the correct length so that you do not lose the motor should
>>>> the
>>>> plate
>>>> fail. You could also have difficulty raising or lowering the motor
>>>> if
>>> the
>>>> damage affects the mechanism. Also, be careful since the cracked
>>> material
>>>> can be very sharp.
>>>>
>>>> Mike
>>>> s/v Shanghai'd Summer ('81)
>>>> Nissequogue River, NY
>>>>
>>>> From: "Pat & Mary Ann" Tuesday, September 21, 2010 9:07 PM
>>>>> Hello all,
>>>>> This summer I notied a progresse, increasing series of cracks in
>>>>> the
>>>>> stern
>>>>> plate. I asked Stan about it and he thought it would be safe to
>>>>> sail
>>> til
>>>>> Labor Day, then pull the plate and replace it with an aluminum
>> replica.
>>>>> Has anyone had a similar problem? I wonder if it is because I
>>>>> raised
>>> the
>>>>> Yamaha too high. Any other suggestions for repair or replacement?
>>>>> Pat Devig
>>>>> -------------- next part --------------
>>>>> A non-text attachment was scrubbed...
>>>>> Name: sailboat 002.JPG
>>>>> Type: image/jpeg
>>>>> Size: 1342223 bytes
>>>>> Desc: not available
>>>>> Url :
>>>>>
>>>
>> http://www.rhodes22.org/pipermail/rhodes22-list/attachments/20100921/70899ed1/attachment.JPG
>>>>> __________________________________________________
>>>>> To subscribe/unsubscribe go to
>>>>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>>>>
>>>>> For the list Charter and help with using the mailing list and
>>>>> archives
>>> go
>>>>> to http://www.rhodes22.org/list
>>>>> __________________________________________________
>>>>
>>>> __________________________________________________
>>>> To subscribe/unsubscribe go to
>>>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>>>
>>>> For the list Charter and help with using the mailing list and
>>>> archives
>>> go
>>>> to http://www.rhodes22.org/list
>>>> __________________________________________________
>>>>
>>>>
>>>
>>>
>>> __________________________________________________
>>> To subscribe/unsubscribe go to
>>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>>
>>> For the list Charter and help with using the mailing list and archives
>> go
>>> to
>>> http://www.rhodes22.org/list
>>> __________________________________________________
>>>
>>>
>>> __________________________________________________
>>> To subscribe/unsubscribe go to
>>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>>
>>> For the list Charter and help with using the mailing list and archives
>> go
>>> to http://www.rhodes22.org/list
>>> __________________________________________________
>>>
>>> __________________________________________________
>>> To subscribe/unsubscribe go to
>>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>>
>>> For the list Charter and help with using the mailing list and archives
>> go
>>> to http://www.rhodes22.org/list
>>> __________________________________________________
>>>
>>>
>>
>>
>> __________________________________________________
>> To subscribe/unsubscribe go to
>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>
>> For the list Charter and help with using the mailing list and archives
>> go
>> to http://www.rhodes22.org/list
>> __________________________________________________
>>
>> __________________________________________________
>> To subscribe/unsubscribe go to
>> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>>
>> For the list Charter and help with using the mailing list and archives go
>> to http://www.rhodes22.org/list
>> __________________________________________________
>>
>>
>
>
> __________________________________________________
> To subscribe/unsubscribe go to
> http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>
> For the list Charter and help with using the mailing list and archives go
> to http://www.rhodes22.org/list
> __________________________________________________
More information about the Rhodes22-list
mailing list