[bolger] Re: Micro Bowsprit & New Member

Thanks, Bill,

You mention Robert Laine, who's a friend of mine, and linked to from my
site in several places. He has both freeware sail and hull software, as do I.

Gregg Carlson
www.carlsondesign.com

At 12:01 PM 9/13/1999 -0700, you wrote:

>Hi, Gregg and y'all,
> It didn't take too long to think about your suggestion to join this
>group, did it? Thank you very much for the details on the bowsprit for
>the Micro, Gregg. For those interested, and from the last few posts
>I've read there are probably more than 2 of you out there who may be
>interested, I will share a web site that provides the panel cutting
>layout for sails that you define.
> Here is a portion of the description of the software from the site:
>"Sailcut CAD are sail design and plot software packages developed by
>Robert Lainé. Sailcut CAD allows you to draw and visualise your own
>sail and compute the accurate development of all panels in flat
>sheets." The packages can be downloaded freely from the download
>section of the site for private, non-commercial purposes.
> I've downloaded the software and have been too engaged in other
>things to look at it. That will happen in due time. The Micro ply
>panels aren't even cut yet. There is another software that plots the
>ply panel development cutouts at the same site. Anyway, for what it's
>worth to the 2 of you, check it out:
>http://users.bart.nl/~jmlaine/sailcut/en-index.html
>Bill Gough
>
>flyerusa@...wrote:
>original article:http://www.egroups.com/group/bolger/?start=277
>> Hi Bill,
>>
>> Thanks for the comments, and good luck on your Micro.
>>
>> My sprit is only 2" by 2" square pole, with a martingale rigged up
>down to
>> the forefoot to reinforce it. It goes through 1"-by-reinforced holes
>in
>> the bow transom and first bulkhead. Inside the cabin is a
>recirculating
>> line to extend or retract - when retracted, it touches the
>companionway
>> bulkhead while still poking just through the bow transom. From
>scaling off
>> the plans, you can probably figure the extended length.
>>
>> Now, the martingale is fixed to the forefoot, going up through a hole
>in
>> the sprit end and terminating in a pulley. The sail tack pendant
>downhaul
>> runs through the pulley so that you can pull the tack forward.
>>
>> Once you design the sprit, you want to sketch your sail on the plans,
>> deciding how high you want the hoist. As you probably know, the clew
>> resides along a line drawn between the mid-point of the luff and the
>place
>> you want to sheet from (in my case, the rear corner). (This sheeting
>line
>> is called the Lp, or Luff Perpendicular.)
>>
>> You can slide the clew along this line (or adjust the hoist) until
>you have
>> the square footage you want. When you're satisfied, you have the 3
>sides
>> of the sail measured.
>>
>> I don't know what mine is, maybe something around the size of the
>mizzen -
>> don't want to spoil the exercise for you, either. There sure wasn't
>any
>> science invloved, and your sailmaker will discuss the materials and
>shape
>> you might want depending on how you want to use it.
>>
>> Let me know if you have any more questions.
>>
>> Think about joining our Bolger group!
>>
>> Gregg
>>
>>
>>
>>
>> >Gregg, Your sight is a real joy for me as I have long been
>> >intrigued by the Bolger boats, many of which you so kindly
>> >shared your experience. Your Micro bowsprit modification is of
>> >particular interest to me as I am just starting to build the
>> >Micro and dreamed about adding more sail to her for light air
>> >conditions which are prevalent here (Lake Allatoona, Georgia)
>> >in the summer. Would you kindly share with me the detail of how
>> >the bowsprit is rigged and your observations and specification
>> >of the sail rig you used with it? BTW, I have a set of Pirogue
>> >plans if you'd like to build another. ;-)
>> >Bill Gough, a.k.a.,
>> > FlyerUSA©
>> > û
>> > ? from anywhere...
>> >flyerusa@...
>>
>>
>>
>
>
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Hi, Gregg and y'all,
It didn't take too long to think about your suggestion to join this
group, did it? Thank you very much for the details on the bowsprit for
the Micro, Gregg. For those interested, and from the last few posts
I've read there are probably more than 2 of you out there who may be
interested, I will share a web site that provides the panel cutting
layout for sails that you define.
Here is a portion of the description of the software from the site:
"Sailcut CAD are sail design and plot software packages developed by
Robert Lainé. Sailcut CAD allows you to draw and visualise your own
sail and compute the accurate development of all panels in flat
sheets." The packages can be downloaded freely from the download
section of the site for private, non-commercial purposes.
I've downloaded the software and have been too engaged in other
things to look at it. That will happen in due time. The Micro ply
panels aren't even cut yet. There is another software that plots the
ply panel development cutouts at the same site. Anyway, for what it's
worth to the 2 of you, check it out:
http://users.bart.nl/~jmlaine/sailcut/en-index.html
Bill Gough

flyerusa@...wrote:
original article:http://www.egroups.com/group/bolger/?start=277

> Hi Bill,
>
> Thanks for the comments, and good luck on your Micro.
>
> My sprit is only 2" by 2" square pole, with a martingale rigged up

down to

> the forefoot to reinforce it. It goes through 1"-by-reinforced holes

in

> the bow transom and first bulkhead. Inside the cabin is a

recirculating

> line to extend or retract - when retracted, it touches the

companionway

> bulkhead while still poking just through the bow transom. From

scaling off

> the plans, you can probably figure the extended length.
>
> Now, the martingale is fixed to the forefoot, going up through a hole

in

> the sprit end and terminating in a pulley. The sail tack pendant

downhaul

> runs through the pulley so that you can pull the tack forward.
>
> Once you design the sprit, you want to sketch your sail on the plans,
> deciding how high you want the hoist. As you probably know, the clew
> resides along a line drawn between the mid-point of the luff and the

place

> you want to sheet from (in my case, the rear corner). (This sheeting

line

> is called the Lp, or Luff Perpendicular.)
>
> You can slide the clew along this line (or adjust the hoist) until

you have

> the square footage you want. When you're satisfied, you have the 3

sides

> of the sail measured.
>
> I don't know what mine is, maybe something around the size of the

mizzen -

> don't want to spoil the exercise for you, either. There sure wasn't

any

> science invloved, and your sailmaker will discuss the materials and

shape

> you might want depending on how you want to use it.
>
> Let me know if you have any more questions.
>
> Think about joining our Bolger group!
>
> Gregg
>
>
>
>
> >Gregg, Your sight is a real joy for me as I have long been
> >intrigued by the Bolger boats, many of which you so kindly
> >shared your experience. Your Micro bowsprit modification is of
> >particular interest to me as I am just starting to build the
> >Micro and dreamed about adding more sail to her for light air
> >conditions which are prevalent here (Lake Allatoona, Georgia)
> >in the summer. Would you kindly share with me the detail of how
> >the bowsprit is rigged and your observations and specification
> >of the sail rig you used with it? BTW, I have a set of Pirogue
> >plans if you'd like to build another. ;-)
> >Bill Gough, a.k.a.,
> > FlyerUSA©
> > û
> > ? from anywhere...
> >flyerusa@...
>
>
>

Hi Bill,

Thanks for the comments, and good luck on your Micro.

My sprit is only 2" by 2" square pole, with a martingale rigged up down to
the forefoot to reinforce it. It goes through 1"-by-reinforced holes in
the bow transom and first bulkhead. Inside the cabin is a recirculating
line to extend or retract - when retracted, it touches the companionway
bulkhead while still poking just through the bow transom. From scaling off
the plans, you can probably figure the extended length.

Now, the martingale is fixed to the forefoot, going up through a hole in
the sprit end and terminating in a pulley. The sail tack pendant downhaul
runs through the pulley so that you can pull the tack forward.

Once you design the sprit, you want to sketch your sail on the plans,
deciding how high you want the hoist. As you probably know, the clew
resides along a line drawn between the mid-point of the luff and the place
you want to sheet from (in my case, the rear corner). (This sheeting line
is called the Lp, or Luff Perpendicular.)

You can slide the clew along this line (or adjust the hoist) until you have
the square footage you want. When you're satisfied, you have the 3 sides
of the sail measured.

I don't know what mine is, maybe something around the size of the mizzen -
don't want to spoil the exercise for you, either. There sure wasn't any
science invloved, and your sailmaker will discuss the materials and shape
you might want depending on how you want to use it.

Let me know if you have any more questions.

Think about joining our Bolger group!

Gregg

>Gregg, Your sight is a real joy for me as I have long been
>intrigued by the Bolger boats, many of which you so kindly
>shared your experience. Your Micro bowsprit modification is of
>particular interest to me as I am just starting to build the
>Micro and dreamed about adding more sail to her for light air
>conditions which are prevalent here (Lake Allatoona, Georgia)
>in the summer. Would you kindly share with me the detail of how
>the bowsprit is rigged and your observations and specification
>of the sail rig you used with it? BTW, I have a set of Pirogue
>plans if you'd like to build another. ;-)
>Bill Gough, a.k.a.,
> FlyerUSA©
> û
> ? from anywhere...
>flyerusa@...