Rod Carr, Carr Sails
Thursday, April 9, 2009
attaching sails
figure-8 cross section shaped sail slides one half of which that slides into the bolt-rope track, while the other half protrudes to hold a jackwire just aft of the after centerline of the mast. One brand that seems to fit many masts is: High Seas Offshore Rigging Components � Mini Double Copper Sleeves, Size A2, 2 mm ID (MDS-BK-A2/100). They are available online from deep sea fishing suppliers. The sail then swivels on the jack wire and doesn�t stream aft for a distance like the bolt rope arrangement, making the mast appear fatter to the oncoming wind, and thereby reducing form drag and upping sail efficiency. Sail lifetimes are greatly extended when the sail sits on the wire rather than being point loaded a discrete �bead� sewing locations.
Sunday, October 8, 2006
Build a Model Sailboat !!
The information used for the " Model Sail Boat Building, Making A Wooden Star45 R/C Sailing Model" includes posts found on the companion blog: The Star 45 R/C Model Sail Boat - Builders Journal
"Model Sail Boat Building, Making A Wooden Star45 R/C Sailing Model" is a start to finish, step by step, building manual. Including directions for covering a wooden star with fiberglass.
With the popularity of radio-controlled models, the number of people interested in owning a model yacht has also grown - in geometric range. As with model aircraft, the choice of sailing models runs the gamut from child's toy to sophisticated craft.
Over the past 30 years I have fielded many questions regarding the choices and considerations which go into selecting a radio-controlled sailboat.
Four questions are asked over and over by prospective skippers: How do the radio-controls work? How much do they cost? What do I look for when I buy mine? And, where can I get plans and instructions for building a sailing model?
The modern R/C model sailing craft is as different from a toy boat as a museum display model is from a child's tinker-toy creation. A model sailing craft operates with the same sophistication of design as any full-sized yacht
The AMYA STAR 45 Class discussion group is a terrific place to exchange ideas and talk about building Star 45 models for racing in AMYA regattas.
Feel free to contact me, Dave Mainwaring mainwaring @ rcn.com
"Model Sail Boat Building, Making A Wooden Star45 R/C Sailing Model" is a start to finish, step by step, building manual. Including directions for covering a wooden star with fiberglass.
With the popularity of radio-controlled models, the number of people interested in owning a model yacht has also grown - in geometric range. As with model aircraft, the choice of sailing models runs the gamut from child's toy to sophisticated craft.
Over the past 30 years I have fielded many questions regarding the choices and considerations which go into selecting a radio-controlled sailboat.
Four questions are asked over and over by prospective skippers: How do the radio-controls work? How much do they cost? What do I look for when I buy mine? And, where can I get plans and instructions for building a sailing model?
The modern R/C model sailing craft is as different from a toy boat as a museum display model is from a child's tinker-toy creation. A model sailing craft operates with the same sophistication of design as any full-sized yacht
The AMYA STAR 45 Class discussion group is a terrific place to exchange ideas and talk about building Star 45 models for racing in AMYA regattas.
Feel free to contact me, Dave Mainwaring mainwaring @ rcn.com
What is a hull ? and construction categories
Dave Mainwaring's definitions
HULL defintion of:
The outer shell, including frames, ribs, interior bulkheads, exclusive of masts, rigging, deck and equipment.
"bare hull" defintion of:
A model boat's outer shell, EXCLUDING, ribs, interior bulkheads, exclusive of masts, rigging, deck and equipment. Example. A fiberglass hull as pulled from a mold.
--
A wooden hull:
one constructed of wood (including plywood).
--
--
HULL defintion of:
The outer shell, including frames, ribs, interior bulkheads, exclusive of masts, rigging, deck and equipment.
"bare hull" defintion of:
A model boat's outer shell, EXCLUDING, ribs, interior bulkheads, exclusive of masts, rigging, deck and equipment. Example. A fiberglass hull as pulled from a mold.
--
A wooden hull:
one constructed of wood (including plywood).
A glass hull:
one constructed of reinforced plastic (cloth impregnated with resin). Nominally referred to as a fiberglass hull.
one constructed of reinforced plastic (cloth impregnated with resin). Nominally referred to as a fiberglass hull.
--
A composite hull:
a hull constructed of wood and covered with reinforced plastic (cloth impregnated with resin).
OR:
a hull constructed using a laminate (sandwich) consisting of reinforced plastic (cloth impregnated with resin) on two sides of a core . Core materials may be foam or wood.
a hull constructed of wood and covered with reinforced plastic (cloth impregnated with resin).
OR:a hull constructed using a laminate (sandwich) consisting of reinforced plastic (cloth impregnated with resin) on two sides of a core . Core materials may be foam or wood.
Builders to do list,
Order Star 45 construction drawing from AMYA store
Buy or borrow books on boat building. Join the Star45 discussion forum.
Decide on type of planking and wood to be used to build the model.
Set aside a work space for building.
Review the bill of materials need to build the model and buy the materials.
Order deck and mast fittings.
Order mast (if you are buying the mast) and order sails (or sail material).
Choose the radio system, buy a sail control unit, Order keel bulb.
While the hull is under construction build:
Keel fin and ballast bulb
Rudder assembly
Make or assemble spars ( mast and booms)
Build cradel to hold boat under construction and when finished.
Test Radio System and sail control unit
After hull is planked:
Install keel trunk or provisions for mounting keel.
Install radio and sail control unit, Then remove while construction continues.
Contstruct deck and hatches
Install/mount deck fittings
Test access to radio and sail control inside the hull.
Provide a exit guide for radio antenna so it can be attached to mast or stays.
Install power switch for turning off batteries
Test mount keel
Paint hull, rudder and keel
Assemble hull, rudder and keel
Set up mast and boom.
Install radio controls.
Check running rigging.
Attach Sails
dry sail model
--
Sail
Display
Storage
Buy or borrow books on boat building. Join the Star45 discussion forum.
Decide on type of planking and wood to be used to build the model.
Set aside a work space for building.
Review the bill of materials need to build the model and buy the materials.
Order deck and mast fittings.
Order mast (if you are buying the mast) and order sails (or sail material).
Choose the radio system, buy a sail control unit, Order keel bulb.
While the hull is under construction build:
Keel fin and ballast bulb
Rudder assembly
Make or assemble spars ( mast and booms)
Build cradel to hold boat under construction and when finished.
Test Radio System and sail control unit
After hull is planked:
Install keel trunk or provisions for mounting keel.
Install radio and sail control unit, Then remove while construction continues.
Contstruct deck and hatches
Install/mount deck fittings
Test access to radio and sail control inside the hull.
Provide a exit guide for radio antenna so it can be attached to mast or stays.
Install power switch for turning off batteries
Test mount keel
Paint hull, rudder and keel
Assemble hull, rudder and keel
Set up mast and boom.
Install radio controls.
Check running rigging.
Attach Sails
dry sail model
--
Sail
Display
Storage
Sailing Model, AMYA Star45 Class | building board
"John Fisher" is building Star 45's. He has provided a series of photographs taken as he builds the model from scratch.
These are posted to the blog along with his notes to help builders assemble the Star 45.
In the following posts you will find comments, notes. and his photographs
Photo's showing the building board and the first couple of steps for putting the frames together.
Building board is 3" wide 3/4" MDF that is glued/screwed together.
The notched balsa template is glued to the building board using a straight edge. Use a staight edge to make sure it stays straight.
S45 Construction: a cradle for the hull of wooden Star 45
From Star45 Yahoo Group - Message:
New use for John's Lasercut Frames-"Cradle Making":
Phil Geren needed a cradle for the hull of my woodie Star 45 under construction, to hold the hull while he fair the gunnels to the frames in preparation for installation of the deck and while designing and installing the controls (keel is not on yet).
Well, the easiest way to make a perfect cradle is by using the holes (which are left in the John Fisher lasercut frame sheets after removal of the lasercut frames, to trace the exact shapes of the outsides of frames 2, 4, 6, 8, and 10 onto 3/8' thick plywood. Allow for the thickness of planking and carpeting by drawing a second trace for each frame so that the hole for the hull is 3/8' bigger everywhere than the frame.
Then cut out each second trace as the inside of a frame for a cradle. Mount the cradle frames on a 2'X4' piece of particle board, using the spacing of the balsa template included in the frames kit, and using a try square to get them vertical, and making sure that they are all on the same longitudinal center and all parallel.
Then hot glue 1' wide strips of carpeting to the insides of the cradle frames. Voila! A perfect hull cradle.
Best,
Phil Geren"
Star45 : Message: The Perfect Cradle: "
Here are the hull cradle fotos I promised you.
Your shadow invention is so useful. The holes left in the plywood sheets after punching out the frames were used as templates to draw perfect frames for a cradle to hold the hull for completion of the construction (before keel installation).
Thanks so much!
Best regards,
Phil Geren"
New use for John's Lasercut Frames-"Cradle Making":
Phil Geren needed a cradle for the hull of my woodie Star 45 under construction, to hold the hull while he fair the gunnels to the frames in preparation for installation of the deck and while designing and installing the controls (keel is not on yet).
Well, the easiest way to make a perfect cradle is by using the holes (which are left in the John Fisher lasercut frame sheets after removal of the lasercut frames, to trace the exact shapes of the outsides of frames 2, 4, 6, 8, and 10 onto 3/8' thick plywood. Allow for the thickness of planking and carpeting by drawing a second trace for each frame so that the hole for the hull is 3/8' bigger everywhere than the frame.
Then cut out each second trace as the inside of a frame for a cradle. Mount the cradle frames on a 2'X4' piece of particle board, using the spacing of the balsa template included in the frames kit, and using a try square to get them vertical, and making sure that they are all on the same longitudinal center and all parallel.
Then hot glue 1' wide strips of carpeting to the insides of the cradle frames. Voila! A perfect hull cradle.
Best,
Phil Geren"
Star45 : Message: The Perfect Cradle: "
Here are the hull cradle fotos I promised you.
Your shadow invention is so useful. The holes left in the plywood sheets after punching out the frames were used as templates to draw perfect frames for a cradle to hold the hull for completion of the construction (before keel installation).
Thanks so much!
Best regards,
Phil Geren"
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