Re: AS 29 updates
--- In bolger@y..., "petehodges" <petehodges@y...> wrote:
they are coming from behind the boat then the flat bottom of the
stern makes 90%. Since water is incompressible,when the wavelet
energy hits the bottom, the only escape is for it to move the boat.
energy could escape to the sides more easily.
>If the wavelets are coming from in front of the boat, about 90%. If
>
> --------
>
> How much of the noise and vibration is coming from the bow area?
they are coming from behind the boat then the flat bottom of the
stern makes 90%. Since water is incompressible,when the wavelet
energy hits the bottom, the only escape is for it to move the boat.
>Sound= maybe half? That's a guess. Vibration= much or most of it. The
> In your opinion, how effective would adding the rounded hull with
> multi layers of plywood be in dampening the sound and vibration?
energy could escape to the sides more easily.
>John
> Thanks again.
>
> Pete
As to the slapping under the bow, it is *quite* loud, but that is not
as much problem as the shuddering it causes when wavelets vibrate the
whole boat. HARD TO SLEEP THROUGH...
John
--------
How much of the noise and vibration is coming from the bow area?
In your opinion, how effective would adding the rounded hull with
multi layers of plywood be in dampening the sound and vibration?
Thanks again.
Pete
as much problem as the shuddering it causes when wavelets vibrate the
whole boat. HARD TO SLEEP THROUGH...
John
--------
How much of the noise and vibration is coming from the bow area?
In your opinion, how effective would adding the rounded hull with
multi layers of plywood be in dampening the sound and vibration?
Thanks again.
Pete
> It is aOne builder described it as "not hard, but intricate." - Peter
> pretty complex boat and I don't see it as being quickly buildable.
--- In bolger@y..., Vince and Mary Ann Chew <vachew@v...> wrote:
Thanks much for the info. It is hard to see that there's anywhere
else it could go.
My AS 29 was built 92-94, but not by me- I bought it last spring.
After putting some 700 hours into restoration I'd _guess_ that new
construction would take maybe 1600 hours full-time, or 2000 part-
time, with the usual caveats about level of finish, etc. It is a
pretty complex boat and I don't see it as being quickly buildable.
The main effect of the specific design on construction is that it
allows a less-skilled builder to do a decent job, but not necessarily
a quicker one.
The builders report to me that the boat cost them, by '94, between
$25,000 and 30,000 US completely equipped (good quality stuff); they
had the masts professionally built which probably raised the cost a
bit.
As to the slapping under the bow, it is *quite* loud, but that is not
as much problem as the shuddering it causes when wavelets vibrate the
whole boat. HARD TO SLEEP THROUGH...
John
> John,w/car
>
> John,
>
> I'm not Paul, but I have the MAIB article in front of me. The new
> arrangement calls for a aluminum extrusion Harken type traveller
> located at the forward edge of the deckhouse.(snip)Vince, Paul,
Thanks much for the info. It is hard to see that there's anywhere
else it could go.
> How long ago did you build your AS29? About how many hours did itPete,
> take? About how much did the materials cost?
> How noisy is the flat bottom at anchor?
My AS 29 was built 92-94, but not by me- I bought it last spring.
After putting some 700 hours into restoration I'd _guess_ that new
construction would take maybe 1600 hours full-time, or 2000 part-
time, with the usual caveats about level of finish, etc. It is a
pretty complex boat and I don't see it as being quickly buildable.
The main effect of the specific design on construction is that it
allows a less-skilled builder to do a decent job, but not necessarily
a quicker one.
The builders report to me that the boat cost them, by '94, between
$25,000 and 30,000 US completely equipped (good quality stuff); they
had the masts professionally built which probably raised the cost a
bit.
As to the slapping under the bow, it is *quite* loud, but that is not
as much problem as the shuddering it causes when wavelets vibrate the
whole boat. HARD TO SLEEP THROUGH...
John
John,
John,
Im not Paul, but I have the MAIB article in front of me. The new
arrangement calls for a aluminum extrusion Harken type traveller w/car
located at the forward edge of the deckhouse. There is a block on the
boom located a few inches aft of a point vertically above the traveller,
a block at the aft end of the boom, and an eye on the boom about 1/2 the
distance between the two blocks. It is difficult to tell from the
picture whether there is more than a simple two part system between the
forward block and the traveller.
It appears that the aft end of the sheet is fixed at the mizen mast
about 1 foot below the foot of the sail. Bolger says there are various
methods for running the sheet [forward part] aft over or around the house.
Vince Chew
John,
Im not Paul, but I have the MAIB article in front of me. The new
arrangement calls for a aluminum extrusion Harken type traveller w/car
located at the forward edge of the deckhouse. There is a block on the
boom located a few inches aft of a point vertically above the traveller,
a block at the aft end of the boom, and an eye on the boom about 1/2 the
distance between the two blocks. It is difficult to tell from the
picture whether there is more than a simple two part system between the
forward block and the traveller.
It appears that the aft end of the sheet is fixed at the mizen mast
about 1 foot below the foot of the sail. Bolger says there are various
methods for running the sheet [forward part] aft over or around the house.
Vince Chew