[C38] death roll

[Joseph Launie]

Bob,
    Great picture. It was likely that the wave and gust threw you by the 
lee. All it takes is a few seconds in 30 knots. Joe Launie, Macavity, 
Commodore

Bob Porter wrote:
> Hi Les;
>
> The Pic was about 1/2 hour before, we were at about 8.5 K boat speed in 25 
> to 30 k of wind. She was stable but we got hit by a wave and gust together.
>
> The logo is from the train, Hiawatha, after which the boat is named. My Dad 
> was a real railroad fan and it was the 1935 Hiawtah that lit his passion for 
> railroads. As he was dying we talked and I told him my next boat would be 
> named after him, Hiawatha.
>
> As we head out to this season's races, I hope we do as well as we did in 
> 2005 w/o the excitement! (teh Chicago Mac is in its 100th running!)
>
> Thanks
>
> Bob Porter
>
> ----- Original Message ----- 
> From: "Les" <hlhowell at pacbell.net>
> To: "Catalina 38 Listserve" <listserve at catalina38.org>
> Sent: Saturday, June 21, 2008 7:55 PM
> Subject: Re: [C38] death roll
>
>
>   
>> This must have been JUST before.  The stern is lifting, the bow is going 
>> down, and the main is tight.
>>
>> The logo on your spinnaker is beautiful.  Did you guys design that?
>>
>> Regards,
>> Les H
>> On Wed, 2008-06-18 at 09:13 -0400, Bob Porter wrote:
>>     
>>> Hi Patrick;
>>>
>>> The death roll has to do with the wind filling the spinnaker while it
>>> is on the leeward side of the main in heavy wind. The forces pull the
>>> bow to the side and you are likely to end up being dragged sideways
>>> down the courses. We did one in the Chicago Mackinac Race in 2005.
>>> Bent the release pin of the spinnaker pole, tore the boom vang apart
>>> --- and bent our rudder. This is a just before picture.
>>>
>>> Bob Porter
>>> Hiawatha hull #247
>>>
>>>
>>>
>>>         ----- Original Message ----- 
>>>         From: Patrick Harpole
>>>         To: Listserve at catalina38.org
>>>         Sent: Tuesday, June 17, 2008 8:00 PM
>>>         Subject: [C38] death roll
>>>
>>>
>>>         I wonder if the “death roll” has anything to do with hull
>>>         speed?   As we know a displacement vessel will only go so
>>>         fast…..square root of length at water-line times some number
>>>         (1.2?).    No matter how much power you apply boat’s speed
>>>         will not increase.  Death roll probably occurs from having too
>>>         much sail up….wonder if a sea anchor would slow down .
>>>         Probably better idea to decrease sail.
>>>
>>>         Patrick
>>>
>>>
>>>
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>
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