Thread: Hull Flexing
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Capt. Mooron
 
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Default Hull Flexing

How does that differ to her usual condition of standing by outside a harbour
with a fouled prop?

CM

"The_navigator©" wrote in message
...
| I'd say It's BS because boats are simply not that rigid and it's hard to
| measure to an accuracy of 4 thou on big objects. The flexability of most
| boats is such that the side stays limit the spread of the hull as the
| backstay is tightened (this is naval architecture 101). Current rig
| tensions are much higher than they used to be. Even Ella has a backstay
| tension of 2,500 lbs when beating.
|
| Cheers MC
|
| DSK wrote:
|
| The_navigator© wrote:
|
| 4 thou. measured on the back of a boat? Complete BS.
|
|
| "The Captain...cap n all" wrote:
| I would have thought so.
|
|
| AFAIK there was no reason to BS about it, the boat was a one-off
| and paid for. If I am interpreting the article about the boat
| correctly, the distortion was measured at the mid length along a
| straight from stem to center transom.
|
| If one is installing high powered hydraulics to control the rig,
| it makes sense to make the hull & deck structure as rigid as
| possible, within reasonable weight limits. I haven't seen any
| figures for the distortion measured on the newest IACC boats but
| the early 1990s boats had very high rig loads (10K kg and up)
| and very little (if any) distortion.
|
| Fresh Breezes- Doug King
|
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