[Rhodes22-list] Wingnuts (not political)

[Michael D. Weisner]

As I stated in a previous reply, a lockwasher is not suited to this 
application.  Self locking nuts (aircraft fasteners) were developed just for 
this type of application.  Loss of the mast bolt assembly WILL result in 
catastrophic failure of the mast system.  This can cause major loss of 
property and become extremely dangerous to individuals on and around the 
craft.  I see no reason to accept a less than ideal solution.  I do not see 
it as an unrealistic requirement for one to have a pair of wrenches 
available when raising the mast to secure the bolt and locking nut.

As far as your history with a wing nut, they have a saying in the financial 
world "History is no guarantee of future performance."

Mike
s/v Shanghaid'd Summer ('81)
       Nissequogue River, NY

From: "Stephen Staum" Saturday, September 12, 2009 7:40 PM
>I have a wingnut on mine which I added a lockwasher to for security.
> In 6 seasons it has not been a problem and is much easier at rigging/
> derigging  time for those of us who do not have the luxury of keeping
> the mast up year round.
>
> Stephen Staum
> 87 Rhodes 22, Carol Lee
> Sent from my iPhone
>
> On Sep 11, 2009, at 11:04 PM, "Michael D. Weisner"
> <mweisner at ebsmed.com> wrote:
>
>> Ben,
>>
>> On my R22 the mast bolt is secured with an "aircraft fastener" or self
>> locking nut not a wing nut.  You should change yours to the same to
>> avoid
>> disaster.  A wing nut should not have been used to secure the mast
>> bolt.
>> See attached image of nut types.
>>
>> Mike
>> s/v Shanghaid'd Summer ('81)
>>       Nissequogue River, NY
>>
>> From: "BenCittadino" Friday, September 11, 2009 9:22 PM
>>>
>>> So last week I was getting ready to cast off all lines for an
>>> afternoon of
>>> gliding smoothly on the bay inside the protective barrier of Sandy
>>> Hook,
>>> when I noticed an odd thing. Sitting balanced atop the cabin overhead
>>> within
>>> a few inches of the base of the mast sat a wingnut.  "Now where the
>>> heck
>>> did
>>> that come from?", says I. Did someone throw it? All my stays and
>>> shrouds
>>> are
>>> taped and secure. As I'm about to stick it in my pocket I look at
>>> the base
>>> of my mast. Now understand I have never had this mast down. I have
>>> it in a
>>> slip in season and she gets hauled out and stored at the marina all
>>> winter
>>> with the mast up.
>>>
>>> I now see that the bolt holding the mast is more than halfway out
>>> of the
>>> mast and the wingnut is clearly the fastener for the end of that bolt
>>> holding the mast in position. The wingnut has of course been
>>> subject to
>>> the
>>> twisting and other stresses working on this craft, and has managed
>>> to work
>>> itself loose.
>>>
>>> Moral of the story: Unlike the car that I jump in and go with every
>>> day
>>> without so much as a single walk-around, my pre-departure checklist
>>> for
>>> the
>>> boat needs to be amended to include a thorough inspection of all
>>> nuts and
>>> bolts, including those on the engine and steering gear. Thought the
>>> other
>>> newbies on the list might like to know.
>>>
>>> Another disaster, narrowly escaped.
>>>
>>> BenC
>>> SV Susan Kay (93 recycled 08)
>>> Highlands, NJ
>>>
>>> -- 
>>> View this message in context:
>>> http://www.nabble.com/Wingnuts-%28not-political%29-tp25410666p25410666.html
>>> Sent from the Rhodes 22 mailing list archive at Nabble.com.
>>>
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>>
>>
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