[Rhodes22-list] BR Frame Material

[Arthur H. Czerwonky]

Bill,
I always clip the boom to the backstay when not underway. Has nothing to do with BR, but I do it then too.
In my mind, I don't think a fallen BR would be very funny...
Art

-----Original Message-----
>From: Bill Effros <bill at effros.com>
>Sent: Feb 4, 2006 10:16 AM
>To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>
>Subject: Re: [Rhodes22-list] BR Frame Material
>
>Dave,
>
>Of course, I don't really know the answers.  I'm just imagining the 
>problems.
>
>As we used to say when we were kids, if this rig fell on you "it 
>wouldn't tickle".
>
>There is no question you could build a rig that will stay up when the 
>water is calm and the wind isn't blowing.
>
>But would you want your daughter under something you had to worry about 
>all the time?
>
>When the main sail sail is unfurled, the mast supports the boom.  Leave 
>the topping lift slack. 
>
>As I understand this boom room, it is supported by the topping lift.  If 
>the line pops out of the cleat, the whole thing comes crashing down.  If 
>wind gets under it from one side, could it pop the yoke off the 
>boom?...and come crashing down?
>
>The more mass it has, the greater the danger.  If the whole thing is 
>made of PVC and nylon and it falls down, it's just funny, not dangerous.
>
>Carbon fiber is light, but it ain't cheap.
>
>Aluminum is a compromise...
>
>Slim's BR seems to be attached to the frame with Velcro straps.  If we 
>made pockets in the panels, and slipped the frame into the pockets, you 
>would never even see what the frame was made of.  I haven't thought 
>through the physics, but I wouldn't be surprised if you could leave most 
>or all of the frame inside the pockets all the time, and lock them upon 
>assembly.  Storage space would be little more than storage space for the 
>frame itself.
>
>But...when you put the topping lift under tension it hums.  This can get 
>quite annoying.  If the rig weighs a lot, it may be tough to get the hum 
>out of the supporting lines...
>
>Just imagining.  Keep thinking.  More to come.
>
>Bill Effros
>
>David Bradley wrote:
>> Wouldn't the boom support the weight?  If the frame had a yoke on the
>> boom it would balance until the side panels or straps were attached to
>> provide lateral support.
>>
>> Dave
>>
>> On 2/4/06, Bill Effros <bill at effros.com> wrote:
>>   
>>> What would be the weight of a Stainless Steel frame?
>>>
>>> Is this something we want to suspend from a rope on a cleat?
>>>
>>> Bill Effros
>>> __________________________________________________
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>>>
>>>     
>>
>>
>> --
>> David Bradley
>> 203.253.9973
>> dwbrad at gmail.com
>> __________________________________________________
>> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>>
>>
>>   
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