[Public-list] Centre Hatch on 1965 A30

[Roger L. Kingsland]

I am trying to understand the need for an additional hatch in the main 
cabin.  With those four "picture windows", certainly there is plenty of 
natural light.  As for ventilation, the main hatch has to be at least 20% of 
the area of the overhead.  I suppose a second hatch would add to cross 
ventilation but so would a cowl vent with a dorade which could be used in 
all but the worst weather while under weigh.  Would it be feasible to 
install a dorade box (or two) at the aft end of the lower cabin top that 
ventilates the main cabin?

Roger 148

----- Original Message ----- 
From: "Gordon Laco" <mainstay at csolve.net>
To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
Sent: Monday, March 12, 2007 11:26 AM
Subject: Re: [Public-list] Centre Hatch on 1965 A30


> Amen to that!
>
> A good option is to use a portlight as a skylight if ventilation is the 
> main
> interest.... Just be aware that many (like ours) have projecting bolts as
> part of the dogging system - not so good for an overhead!
>
> Gord #426 Surprise
>
>
>
>
>> Any hatch which would fail under the weight of a crew member has no 
>> business
>> being on a boat, particularly an off shore boat like an Alberg. 
>> Production
>> hatches will take your weight if made by a quality Manufacturer like 
>> Bomar,
>> Lewmar, H A, etcetera
>>
>> ATB
>>
>> John
>>
>
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