Re: Rubens Nymph
It is indeed the 59 square foot leg o mutton used in so many of these
boats (brick, cartopper, surf, elegant punt, ...) I bought mine from
Payson. Delivery was quick, though he says to allow quite a bit of time.
Doug
boats (brick, cartopper, surf, elegant punt, ...) I bought mine from
Payson. Delivery was quick, though he says to allow quite a bit of time.
Doug
--- Inbolger@yahoogroups.com, "loyseal1" <loyseal1@...> wrote:
>
>
>
> I cannot read the sail area of Reuben's Nymph on the Instantboats web
> site. Is it the 59 sq. ft. sail used in many of the other boats. I
> believe that is what you implied, but I want to make sure. I want to
> build one to keep at my inlaw's house on a similar size lake.
> Loy
> Ruston, LA
> --- Inbolger@yahoogroups.com, "oarmandt" <oarman89@> wrote:
> >
> > I have just finished a Rubens Nymph
> > (http://www.instantboats.com/rnymph.htm)and am delighted with it.
> > Well, not really finished - I've had it in the lake for rowing trials
> > and two sails before painting.
> >
> > I selected this design to have an extremely simple boat to sail on a
> > whim in the small lake (45 acres) behind my house. I also wanted it
> > as a stable work boat for tasks along the waterfront. Standing up in
> > the canoe to trim palm fronds was not a good idea.
> >
> > It is only 7'-9" long with pronounced rocker, so it will be no speed
> > demon. It gets around under sail quite well. It gains steerage way
> > when it seems there is no air movement at all. With the severe rocker
> > and the long narrow leeboard, it has all the maneurverability needed
> > to sail in this small lake. I have had winds up to only about 10 mph.
> > My 200 Lbs centered on the fore and aft bench have been enough to
> > hold it up. Getting weight outboard, it will surely handle much more.
> > It should be reasonably comfortable for two while sailing.
> >
> > Beam is 4'-6". (Length/beam = 1.7, not Bolger's usual regime.)
> > Stability is pretty good even though the 2-chine hull lost a lot of
> > volume compared to the usual Bolger Box. Apparently the related, much
> > narrower, Nymph design is treacherous.
> >
> > It gets along surprisingly well under oars. (How does one store 8.5'
> > oars in a 7.75' boat? Mr. Bolger calls for 8' minimum.) It maintains
> > some speed between strokes. It will track straight enough with a
> > minimum of attention. Even my wife can row it straight. It will spin
> > in its own length if desired. The plans show 690 Lbs displacement. I
> > believe it can handle it.
> >
> > Many in the instant boat series are supposed to use the same rig.
> > Same sail yes, same rig, no. There are differences in the masts. I
> > may build a June Bug later, so made a mast that will work in both.
> > For JB, it needs 3" more length, all between step and partner. RN
> > wants a much stouter mast section. (I'm guessing the RN mast is
> > thicker to deal with the larger righting moment implied by the wide
> > beam?) To hold the longer mast off the RN's bottom, I made a open
> > ended 3" plywood box to fit between stops on the mast and the top of
> > the partner.
> >
> > Doug
> >
> > --- Inbolger@yahoogroups.com, <welshman@> wrote:
> > >
> > >
> > > How did you like the Rubens Nymph, how did you use it. Any comments?
> > >
> > > HJ
> > >
> > > ---snip---
> > > > boat, there is no worry. When I built a 'Rubens Nymph', as a test
> > I put her across 2 sawhorses - at least 6 feet apart - and stood with
> > my feettogether in the middle of the hull. At the time I was a quite
> > a bit more 'tubby', so that gave a 'floor loading' of 250lbs per
sq.ft.
> > >
> > > ---snip---
> > >
> >
>
I cannot read the sail area of Reuben's Nymph on the Instantboats web
site. Is it the 59 sq. ft. sail used in many of the other boats. I
believe that is what you implied, but I want to make sure. I want to
build one to keep at my inlaw's house on a similar size lake.
Loy
Ruston, LA
site. Is it the 59 sq. ft. sail used in many of the other boats. I
believe that is what you implied, but I want to make sure. I want to
build one to keep at my inlaw's house on a similar size lake.
Loy
Ruston, LA
--- Inbolger@yahoogroups.com, "oarmandt" <oarman89@...> wrote:
>
> I have just finished a Rubens Nymph
> (http://www.instantboats.com/rnymph.htm)and am delighted with it.
> Well, not really finished - I've had it in the lake for rowing trials
> and two sails before painting.
>
> I selected this design to have an extremely simple boat to sail on a
> whim in the small lake (45 acres) behind my house. I also wanted it
> as a stable work boat for tasks along the waterfront. Standing up in
> the canoe to trim palm fronds was not a good idea.
>
> It is only 7'-9" long with pronounced rocker, so it will be no speed
> demon. It gets around under sail quite well. It gains steerage way
> when it seems there is no air movement at all. With the severe rocker
> and the long narrow leeboard, it has all the maneurverability needed
> to sail in this small lake. I have had winds up to only about 10 mph.
> My 200 Lbs centered on the fore and aft bench have been enough to
> hold it up. Getting weight outboard, it will surely handle much more.
> It should be reasonably comfortable for two while sailing.
>
> Beam is 4'-6". (Length/beam = 1.7, not Bolger's usual regime.)
> Stability is pretty good even though the 2-chine hull lost a lot of
> volume compared to the usual Bolger Box. Apparently the related, much
> narrower, Nymph design is treacherous.
>
> It gets along surprisingly well under oars. (How does one store 8.5'
> oars in a 7.75' boat? Mr. Bolger calls for 8' minimum.) It maintains
> some speed between strokes. It will track straight enough with a
> minimum of attention. Even my wife can row it straight. It will spin
> in its own length if desired. The plans show 690 Lbs displacement. I
> believe it can handle it.
>
> Many in the instant boat series are supposed to use the same rig.
> Same sail yes, same rig, no. There are differences in the masts. I
> may build a June Bug later, so made a mast that will work in both.
> For JB, it needs 3" more length, all between step and partner. RN
> wants a much stouter mast section. (I'm guessing the RN mast is
> thicker to deal with the larger righting moment implied by the wide
> beam?) To hold the longer mast off the RN's bottom, I made a open
> ended 3" plywood box to fit between stops on the mast and the top of
> the partner.
>
> Doug
>
> --- Inbolger@yahoogroups.com, <welshman@> wrote:
> >
> >
> > How did you like the Rubens Nymph, how did you use it. Any comments?
> >
> > HJ
> >
> > ---snip---
> > > boat, there is no worry. When I built a 'Rubens Nymph', as a test
> I put her across 2 sawhorses - at least 6 feet apart - and stood with
> my feettogether in the middle of the hull. At the time I was a quite
> a bit more 'tubby', so that gave a 'floor loading' of 250lbs per sq.ft.
> >
> > ---snip---
> >
>
I have just finished a Rubens Nymph
(http://www.instantboats.com/rnymph.htm)and am delighted with it.
Well, not really finished - I've had it in the lake for rowing trials
and two sails before painting.
I selected this design to have an extremely simple boat to sail on a
whim in the small lake (45 acres) behind my house. I also wanted it
as a stable work boat for tasks along the waterfront. Standing up in
the canoe to trim palm fronds was not a good idea.
It is only 7'-9" long with pronounced rocker, so it will be no speed
demon. It gets around under sail quite well. It gains steerage way
when it seems there is no air movement at all. With the severe rocker
and the long narrow leeboard, it has all the maneurverability needed
to sail in this small lake. I have had winds up to only about 10 mph.
My 200 Lbs centered on the fore and aft bench have been enough to
hold it up. Getting weight outboard, it will surely handle much more.
It should be reasonably comfortable for two while sailing.
Beam is 4'-6". (Length/beam = 1.7, not Bolger's usual regime.)
Stability is pretty good even though the 2-chine hull lost a lot of
volume compared to the usual Bolger Box. Apparently the related, much
narrower, Nymph design is treacherous.
It gets along surprisingly well under oars. (How does one store 8.5'
oars in a 7.75' boat? Mr. Bolger calls for 8' minimum.) It maintains
some speed between strokes. It will track straight enough with a
minimum of attention. Even my wife can row it straight. It will spin
in its own length if desired. The plans show 690 Lbs displacement. I
believe it can handle it.
Many in the instant boat series are supposed to use the same rig.
Same sail yes, same rig, no. There are differences in the masts. I
may build a June Bug later, so made a mast that will work in both.
For JB, it needs 3" more length, all between step and partner. RN
wants a much stouter mast section. (I'm guessing the RN mast is
thicker to deal with the larger righting moment implied by the wide
beam?) To hold the longer mast off the RN's bottom, I made a open
ended 3" plywood box to fit between stops on the mast and the top of
the partner.
Doug
(http://www.instantboats.com/rnymph.htm)and am delighted with it.
Well, not really finished - I've had it in the lake for rowing trials
and two sails before painting.
I selected this design to have an extremely simple boat to sail on a
whim in the small lake (45 acres) behind my house. I also wanted it
as a stable work boat for tasks along the waterfront. Standing up in
the canoe to trim palm fronds was not a good idea.
It is only 7'-9" long with pronounced rocker, so it will be no speed
demon. It gets around under sail quite well. It gains steerage way
when it seems there is no air movement at all. With the severe rocker
and the long narrow leeboard, it has all the maneurverability needed
to sail in this small lake. I have had winds up to only about 10 mph.
My 200 Lbs centered on the fore and aft bench have been enough to
hold it up. Getting weight outboard, it will surely handle much more.
It should be reasonably comfortable for two while sailing.
Beam is 4'-6". (Length/beam = 1.7, not Bolger's usual regime.)
Stability is pretty good even though the 2-chine hull lost a lot of
volume compared to the usual Bolger Box. Apparently the related, much
narrower, Nymph design is treacherous.
It gets along surprisingly well under oars. (How does one store 8.5'
oars in a 7.75' boat? Mr. Bolger calls for 8' minimum.) It maintains
some speed between strokes. It will track straight enough with a
minimum of attention. Even my wife can row it straight. It will spin
in its own length if desired. The plans show 690 Lbs displacement. I
believe it can handle it.
Many in the instant boat series are supposed to use the same rig.
Same sail yes, same rig, no. There are differences in the masts. I
may build a June Bug later, so made a mast that will work in both.
For JB, it needs 3" more length, all between step and partner. RN
wants a much stouter mast section. (I'm guessing the RN mast is
thicker to deal with the larger righting moment implied by the wide
beam?) To hold the longer mast off the RN's bottom, I made a open
ended 3" plywood box to fit between stops on the mast and the top of
the partner.
Doug
--- Inbolger@yahoogroups.com, <welshman@...> wrote:
>
>
> How did you like the Rubens Nymph, how did you use it. Any comments?
>
> HJ
>
> ---snip---
> > boat, there is no worry. When I built a 'Rubens Nymph', as a test
I put her across 2 sawhorses - at least 6 feet apart - and stood with
my feettogether in the middle of the hull. At the time I was a quite
a bit more 'tubby', so that gave a 'floor loading' of 250lbs per sq.ft.
>
> ---snip---
>
How did you like the Rubens Nymph, how did you use it. Any comments?
HJ
---snip---
HJ
---snip---
> boat, there is no worry. When I built a 'Rubens Nymph', as a test I put her across 2 sawhorses - at least 6 feet apart - and stood with my feettogether in the middle of the hull. At the time I was a quite a bit more 'tubby', so that gave a 'floor loading' of 250lbs per sq.ft.---snip---
Ron:
For the most part, I agree with you on both points below. I suspect that
the weight estimate based on the number of sheets will be pretty close given
that the framing is mostly ply and the dimension lumber probably weighs less
than the ply scrap. It occurs to me that since this boat is already
complete, another approach might be to measure the displaced volume and
calculate the weight of water displaced. If the sides have water marks on
them, it would not even be necessary to float it to have a good
approximation
As for the strength of 5 or 6 mm ply, I agree that a glassed hull is
significantly stronger than one without. Static loading, however is only
part of the problem. What is important is that the bottom must withstand
dynamic loading in a seaway and while trailering. If the boat will be
trailered, it important to ensure that the cradle system of the trailer
adequately supports and distributes the weight of the ballast.
Chris
-----Original Message-----
From:bolger@yahoogroups.com[mailto:bolger@yahoogroups.com]On Behalf Of
Ron Magen
Sent: Wednesday, July 12, 2006 8:58 AM
To:bolger@yahoogroups.com
Subject: [bolger] Re: Weight of Light Schooner
For a 'quick' estimate of weight, I begin with the ply. A 1/4in {6mm}4x8
sheet weighs 25 pounds {plus or minus}. The f'glass cloth is 'rated' at
ounces per square yard, and use the same for the epoxy used to 'fill &
finish it out'.
If you are trying to guess the 'all up' mass . . . either estimate the
rest of the framing pieces and 20 percent, or look up the figures for
the specific wood {or use Doug Fir as a base} and multiply by the board
footage called out in the Bill of Materials.
In any case, I would rather be on the HIGH side with a weight estimate.
Chris - As far as structural strength goes . . . if you do the job RIGHT
{Lauan, 6 oz glass sheathing, epoxy, etc.}, and don't jump into the
boat, there is no worry. When I built a 'Rubens Nymph', as a test I put
her across 2 sawhorses - at least 6 feet apart - and stood with my feet
together in the middle of the hull. At the time I was a quite a bit more
'tubby', so that gave a 'floor loading' of 250lbs per sq.ft. 'Solid as a
rock' - not even any flexing.
Regards & Good Luck,
Ron Magen
Backyard Boatshop
- NO "GO AWAY SPAMMER!" posts!!! Please!
- no cursing, flaming, trolling, spamming, respamming, or flogging dead
horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
(978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
Yahoo! Groups Links
For the most part, I agree with you on both points below. I suspect that
the weight estimate based on the number of sheets will be pretty close given
that the framing is mostly ply and the dimension lumber probably weighs less
than the ply scrap. It occurs to me that since this boat is already
complete, another approach might be to measure the displaced volume and
calculate the weight of water displaced. If the sides have water marks on
them, it would not even be necessary to float it to have a good
approximation
As for the strength of 5 or 6 mm ply, I agree that a glassed hull is
significantly stronger than one without. Static loading, however is only
part of the problem. What is important is that the bottom must withstand
dynamic loading in a seaway and while trailering. If the boat will be
trailered, it important to ensure that the cradle system of the trailer
adequately supports and distributes the weight of the ballast.
Chris
-----Original Message-----
From:bolger@yahoogroups.com[mailto:bolger@yahoogroups.com]On Behalf Of
Ron Magen
Sent: Wednesday, July 12, 2006 8:58 AM
To:bolger@yahoogroups.com
Subject: [bolger] Re: Weight of Light Schooner
For a 'quick' estimate of weight, I begin with the ply. A 1/4in {6mm}4x8
sheet weighs 25 pounds {plus or minus}. The f'glass cloth is 'rated' at
ounces per square yard, and use the same for the epoxy used to 'fill &
finish it out'.
If you are trying to guess the 'all up' mass . . . either estimate the
rest of the framing pieces and 20 percent, or look up the figures for
the specific wood {or use Doug Fir as a base} and multiply by the board
footage called out in the Bill of Materials.
In any case, I would rather be on the HIGH side with a weight estimate.
Chris - As far as structural strength goes . . . if you do the job RIGHT
{Lauan, 6 oz glass sheathing, epoxy, etc.}, and don't jump into the
boat, there is no worry. When I built a 'Rubens Nymph', as a test I put
her across 2 sawhorses - at least 6 feet apart - and stood with my feet
together in the middle of the hull. At the time I was a quite a bit more
'tubby', so that gave a 'floor loading' of 250lbs per sq.ft. 'Solid as a
rock' - not even any flexing.
Regards & Good Luck,
Ron Magen
Backyard Boatshop
> 1. Re: Weight of Light Schooner?wetherillc
> Posted by: "Christopher Wetherill"wetherillc@...
> Date: Mon Jul 10, 2006 8:09 pm (PDT)and
>
> Timbo,
>
> Given that the bottom is 5mm Luan, great care will be necessary to
> prevent the ballast from breaking it out. One of my great hesitations
> about building some of the light sharpies is that I weigh 235 pounds
> fear I may step through a bottom or deck.Bolger rules!!!
>
> Chris
- NO "GO AWAY SPAMMER!" posts!!! Please!
- no cursing, flaming, trolling, spamming, respamming, or flogging dead
horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
(978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
Yahoo! Groups Links
Where do you find shoes for a square foot?
Roger
derbyrm@...
http://home.insightbb.com/~derbyrm
Roger
derbyrm@...
http://home.insightbb.com/~derbyrm
----- Original Message -----
From: Ron Magen
To:bolger@yahoogroups.com
Sent: Wednesday, July 12, 2006 8:57 AM
Subject: [bolger] Re: Weight of Light Schooner
For a 'quick' estimate of weight, I begin with the ply. A 1/4in {6mm}4x8
sheet weighs 25 pounds {plus or minus}. The f'glass cloth is 'rated' at
ounces per square yard, and use the same for the epoxy used to 'fill &
finish it out'.
If you are trying to guess the 'all up' mass . . . either estimate the
rest of the framing pieces and 20 percent, or look up the figures for
the specific wood {or use Doug Fir as a base} and multiply by the board
footage called out in the Bill of Materials.
In any case, I would rather be on the HIGH side with a weight estimate.
Chris - As far as structural strength goes . . . if you do the job RIGHT
{Lauan, 6 oz glass sheathing, epoxy, etc.}, and don't jump into the
boat, there is no worry. When I built a 'Rubens Nymph', as a test I put
her across 2 sawhorses - at least 6 feet apart - and stood with my feet
together in the middle of the hull. At the time I was a quite a bit more
'tubby', so that gave a 'floor loading' of 250lbs per sq.ft. 'Solid as a
rock' - not even any flexing.
Regards & Good Luck,
Ron Magen
Backyard Boatshop
> 1. Re: Weight of Light Schooner?
> Posted by: "Christopher Wetherill"wetherillc@...
wetherillc
> Date: Mon Jul 10, 2006 8:09 pm (PDT)
>
> Timbo,
>
> Given that the bottom is 5mm Luan, great care will be necessary to
> prevent the ballast from breaking it out. One of my great hesitations
> about building some of the light sharpies is that I weigh 235 pounds
and
> fear I may step through a bottom or deck.
>
> Chris
[Non-text portions of this message have been removed]
For a 'quick' estimate of weight, I begin with the ply. A 1/4in {6mm}4x8
sheet weighs 25 pounds {plus or minus}. The f'glass cloth is 'rated' at
ounces per square yard, and use the same for the epoxy used to 'fill &
finish it out'.
If you are trying to guess the 'all up' mass . . . either estimate the
rest of the framing pieces and 20 percent, or look up the figures for
the specific wood {or use Doug Fir as a base} and multiply by the board
footage called out in the Bill of Materials.
In any case, I would rather be on the HIGH side with a weight estimate.
Chris - As far as structural strength goes . . . if you do the job RIGHT
{Lauan, 6 oz glass sheathing, epoxy, etc.}, and don't jump into the
boat, there is no worry. When I built a 'Rubens Nymph', as a test I put
her across 2 sawhorses - at least 6 feet apart - and stood with my feet
together in the middle of the hull. At the time I was a quite a bit more
'tubby', so that gave a 'floor loading' of 250lbs per sq.ft. 'Solid as a
rock' - not even any flexing.
Regards & Good Luck,
Ron Magen
Backyard Boatshop
sheet weighs 25 pounds {plus or minus}. The f'glass cloth is 'rated' at
ounces per square yard, and use the same for the epoxy used to 'fill &
finish it out'.
If you are trying to guess the 'all up' mass . . . either estimate the
rest of the framing pieces and 20 percent, or look up the figures for
the specific wood {or use Doug Fir as a base} and multiply by the board
footage called out in the Bill of Materials.
In any case, I would rather be on the HIGH side with a weight estimate.
Chris - As far as structural strength goes . . . if you do the job RIGHT
{Lauan, 6 oz glass sheathing, epoxy, etc.}, and don't jump into the
boat, there is no worry. When I built a 'Rubens Nymph', as a test I put
her across 2 sawhorses - at least 6 feet apart - and stood with my feet
together in the middle of the hull. At the time I was a quite a bit more
'tubby', so that gave a 'floor loading' of 250lbs per sq.ft. 'Solid as a
rock' - not even any flexing.
Regards & Good Luck,
Ron Magen
Backyard Boatshop
> 1. Re: Weight of Light Schooner?wetherillc
> Posted by: "Christopher Wetherill"wetherillc@...
> Date: Mon Jul 10, 2006 8:09 pm (PDT)and
>
> Timbo,
>
> Given that the bottom is 5mm Luan, great care will be necessary to
> prevent the ballast from breaking it out. One of my great hesitations
> about building some of the light sharpies is that I weigh 235 pounds
> fear I may step through a bottom or deck.
>
> Chris