Now to know more about balsa wood. Firms such as Guillows are
recognized as a famous manufacturer of regular kits uses pieces that are created
from balsa wooden. Your dedicated components like wing ribs and fuselage formers
are made from sheets of balsa whilst balsa strips make what's left of the
construction. Thin modeling grade balsa is also employed within several vital
regions of a model plane like engine bulkheads and landing equipment plates. The
primary reason behind the recognition of balsa as a materials might be ascribed
to the indisputable truth that it has a glorious bodyweight to durability
proportion.
The Balsa Remote controlled model plane kits feature a strategy that is
typically laid out on a flat board. You want to adhere to the plan on every step
to correctly construct the airplane and to attach the necessary components like
wings, tail, fuselage et al. After this really is complete then arrives the most
important job of covering the components with a heat delicate piece of
plastic.
You'll be able to attach the film onto the components using an iron. The film
stays to the balsa with the assistance of an adhesive coating and this softens
due to temperature. A soldering iron is then utilized to reduce the scale of the
film. But this really is a more modern day approach. If you purchase a
traditional balsa model airplane you will find it's covered with light-weight
tissue paper and banana oil. These days you will find this strategy in those
versions which are copy of the vintage planes. In this way the model looks
standard too. With changing times we have seen model aeroplanes being built from
foam, plastic, fiberglass not to mention the, balsa.
In the last 10 years or so the admiration for Remote control RTF ( Ready to
fly ) and ARF ( Just about prepared to fly ) have risen consistently. NexStar
Select 46 is an extremely popular model which has helped lure numerous folks
into Remote control model airplane flying.The reklated article go to http://www.balsafactory.com/.
2013年7月31日星期三
2013年7月28日星期日
Where does Balsa Wood come from?
By this article to more about the balsa wood. Model airplanes are no
different than any other type of flying machine, large or small — THE LIGHTER IT
IS BUILT, THE BETTER IT WILL FLY! With that in mind, it is easy to understand
why balsa wood has been the standard material for model airplane construction
since it first became readily available in the U.S. in the late 1920s. Its
outstanding strength-to-weight ratio enables hobbyists to construct durable
models that fly in a totally realistic manner. Balsa also absorbs shock and
vibration well and can be easily cut, shaped, and glued with simple hand
tools.
Model airplanes are no different than any other type of flying machine, large or small - THE LIGHTER IT IS BUILT, THE BETTER IT WILL FLY! With that in mind, it is easy to understand why balsa rectangle has been the standard material for model airplane construction since it first became readily available in the U.S. in the late 1920's. Its outstanding strength-to-weight ratio enables hobbyists to construct durable models that fly in totally realistic manner. Balsa also absorbs shock and vibration well and can be easily cut, shaped, and glued with simple hand tools.
Where does Balsa Wood come from?
Balsa trees grow naturally in the humid rain forests of Central and South America. Its natural range oeicoqmb extends south from Guatemala, through Central America, to the north and west coast of South America as far as Bolivia. However, the small country of Ecquador on the western coast of South America, is the primary source of model aircraft grade blasa in the world. Blasa needs a warm climate with plenty of rainfall and good drainage. For that reason, the best stands of balsa usually appear on the high ground between tropical rivers. Ecquador has the ideal geography and climate for growing balsa trees. The scientific name for bass polywood is ochroma lagopus. The word balsa itself is Spanish meaning raft, in reference to its excellent floatation qualities. In Ecquador it is known as Boya, meaning buoy.
Model airplanes are no different than any other type of flying machine, large or small - THE LIGHTER IT IS BUILT, THE BETTER IT WILL FLY! With that in mind, it is easy to understand why balsa rectangle has been the standard material for model airplane construction since it first became readily available in the U.S. in the late 1920's. Its outstanding strength-to-weight ratio enables hobbyists to construct durable models that fly in totally realistic manner. Balsa also absorbs shock and vibration well and can be easily cut, shaped, and glued with simple hand tools.
Where does Balsa Wood come from?
Balsa trees grow naturally in the humid rain forests of Central and South America. Its natural range oeicoqmb extends south from Guatemala, through Central America, to the north and west coast of South America as far as Bolivia. However, the small country of Ecquador on the western coast of South America, is the primary source of model aircraft grade blasa in the world. Blasa needs a warm climate with plenty of rainfall and good drainage. For that reason, the best stands of balsa usually appear on the high ground between tropical rivers. Ecquador has the ideal geography and climate for growing balsa trees. The scientific name for bass polywood is ochroma lagopus. The word balsa itself is Spanish meaning raft, in reference to its excellent floatation qualities. In Ecquador it is known as Boya, meaning buoy.
2013年7月26日星期五
How to Work with Balsa
balsa wood was first
used during World War I as a substitute for cork. During this period, life rafts
and armor plates were constructed of balsa. In World War II, balsa use was
upgraded for the making of airplanes. It became the primary material for the
famous British de Havilland Mosquito combat airplane.
Apart from being lightweight and durable, balsa wood also has the ability to float, which makes it an ideal material for surfboards and other water sports equipment. Another popular use for balsa lumber is model kits, usually that of airplanes. Again, because the material is light, model airplanes constructed from balsa generally perform better than its other counterparts. Doll houses and the miniature furniture that accompany them are also routinely made out of balsa. The same is true for stage furniture and other props. The other parts of the balsa tree are used for insulation, stuffing, sound-absorption and packing.
Before hacking into the wood, one must have a ta3zwdkv clear plan as to what the end product would be. When manipulating balsa, it is important to be careful because, as said earlier, its price is quite high, so waste is something to avoid. Another thing to bear in mind is to choose the right type of balsa for a particular project. This will ensure the quality of the wood used for the endeavor.
In order to manipulate balsa wood for whatever purpose, the necessary tools should be on hand. While it is relatively soft and easy to carve and shape, using the proper equipment would make the job more accurate. In addition, the wood is also quite expensive, and the chances of improper handling are lessened with the right gadgets. No need for power tools or saws – for the most part, four or five precision knives are all that is needed. It is also more convenient to keep replacement blades around. Sanding blocks are also necessary tools to smooth out the wood.
The bottom line is that balsa wood is a great lightweight material of great strength that has many valuable uses and applications, it should be strongly considered when deciding upon your choice of wood.If you want to know more about balsa sheet , you can go to our wesite right now.
Apart from being lightweight and durable, balsa wood also has the ability to float, which makes it an ideal material for surfboards and other water sports equipment. Another popular use for balsa lumber is model kits, usually that of airplanes. Again, because the material is light, model airplanes constructed from balsa generally perform better than its other counterparts. Doll houses and the miniature furniture that accompany them are also routinely made out of balsa. The same is true for stage furniture and other props. The other parts of the balsa tree are used for insulation, stuffing, sound-absorption and packing.
Before hacking into the wood, one must have a ta3zwdkv clear plan as to what the end product would be. When manipulating balsa, it is important to be careful because, as said earlier, its price is quite high, so waste is something to avoid. Another thing to bear in mind is to choose the right type of balsa for a particular project. This will ensure the quality of the wood used for the endeavor.
In order to manipulate balsa wood for whatever purpose, the necessary tools should be on hand. While it is relatively soft and easy to carve and shape, using the proper equipment would make the job more accurate. In addition, the wood is also quite expensive, and the chances of improper handling are lessened with the right gadgets. No need for power tools or saws – for the most part, four or five precision knives are all that is needed. It is also more convenient to keep replacement blades around. Sanding blocks are also necessary tools to smooth out the wood.
The bottom line is that balsa wood is a great lightweight material of great strength that has many valuable uses and applications, it should be strongly considered when deciding upon your choice of wood.If you want to know more about balsa sheet , you can go to our wesite right now.
2013年7月25日星期四
when you attempt to design your own glider
Now an article about designing balsa wood glider. There are many
factors that come in to being when you attempt to design your own glider. There
is the wing shape, the wing size, the wing placement and the tail size. In this
section I will attempt to summarize the major points of design so you can
successfully design and build your own glider.
Materials: The materials of a plane are one of the most important factors. Since this glider we are building is going to be relatively small I recommend a light but stiff material. Two good choices are high grade balsa wood or heavy oak paper. If you use the balsa wood it may be necessary to be more concerned with the weight of your plane. You will also need something to hold the plane together, I found that model wood glue worked well for balsa wood an plain old glue is fine for paper. It is important that in construction we don't use to much glue because glue is heavy and it will weigh down your glider.
Design: The first major step in designing your glider is determining the wings shape and size. I recommend a simple rectangular wing shape this shape makes for the easiest calculations later. The wing size and shape also play a major role in determining the dimensions of the rest of the plane.
The first calculation is for determining the size of the horizontal stabilizer. This equation is: SH=(1.2) times S(T) divided by DCG. Now, before you panic let me explain. SH= The surface area for the horizontal stabilizer(cm. sq.). S=Main wing surface area (cm. sq.). T=Chord length of main wing (cm.). DCG=Distance from center of gravity to the horizontal stabilizer (cm.). So, basically the horizontal stabilizer is equal to the wing area times the chord divided by the distance from the center of gravity times 1.2. Now enter your ideal numbers into this calculation, nvktazrew my guess is that you will find that you tail is to big for you liking. The best way to fix this is to reduce the length of you cord and make the wings longer from end to end to preserve enough surface area.
The next step in the design is to determine the size of the vertical stabilizer. This equation is SV=S times SP divided by DCG times .05. S and DCG are the same as above. SP= the wing span SV=surface area of vertical stabilizers. The surface area of the vertical stabilizer generally does not pose a problem.
Once you have your numbers and sizes all worked out you can begin construction.
Wings: The wings, once they are cut out must be curved slightly so Bernoulli's principle can work. After you have them shaped (paper you can just bend, balsa wood has to be braced in the curved position and left over night) place them on top of the body so that the center of gravity is about a quarter of the total wing cord in from the leading edge. Make sure also that the wings have a dihedral of about 5-15 degrees. The wings should also have a angle of attack of about 2 degrees. After this place the vertical and horizontal stabilizers as your calculations determine. They should both be flat with no up down or left right angle in them.By the way , we offer you large number ofbass polywood ,you can take a look.
Materials: The materials of a plane are one of the most important factors. Since this glider we are building is going to be relatively small I recommend a light but stiff material. Two good choices are high grade balsa wood or heavy oak paper. If you use the balsa wood it may be necessary to be more concerned with the weight of your plane. You will also need something to hold the plane together, I found that model wood glue worked well for balsa wood an plain old glue is fine for paper. It is important that in construction we don't use to much glue because glue is heavy and it will weigh down your glider.
Design: The first major step in designing your glider is determining the wings shape and size. I recommend a simple rectangular wing shape this shape makes for the easiest calculations later. The wing size and shape also play a major role in determining the dimensions of the rest of the plane.
The first calculation is for determining the size of the horizontal stabilizer. This equation is: SH=(1.2) times S(T) divided by DCG. Now, before you panic let me explain. SH= The surface area for the horizontal stabilizer(cm. sq.). S=Main wing surface area (cm. sq.). T=Chord length of main wing (cm.). DCG=Distance from center of gravity to the horizontal stabilizer (cm.). So, basically the horizontal stabilizer is equal to the wing area times the chord divided by the distance from the center of gravity times 1.2. Now enter your ideal numbers into this calculation, nvktazrew my guess is that you will find that you tail is to big for you liking. The best way to fix this is to reduce the length of you cord and make the wings longer from end to end to preserve enough surface area.
The next step in the design is to determine the size of the vertical stabilizer. This equation is SV=S times SP divided by DCG times .05. S and DCG are the same as above. SP= the wing span SV=surface area of vertical stabilizers. The surface area of the vertical stabilizer generally does not pose a problem.
Once you have your numbers and sizes all worked out you can begin construction.
Wings: The wings, once they are cut out must be curved slightly so Bernoulli's principle can work. After you have them shaped (paper you can just bend, balsa wood has to be braced in the curved position and left over night) place them on top of the body so that the center of gravity is about a quarter of the total wing cord in from the leading edge. Make sure also that the wings have a dihedral of about 5-15 degrees. The wings should also have a angle of attack of about 2 degrees. After this place the vertical and horizontal stabilizers as your calculations determine. They should both be flat with no up down or left right angle in them.By the way , we offer you large number ofbass polywood ,you can take a look.
2013年7月23日星期二
3 kinds of balsa wood grian
Balsa Wood Grain
All know that balsa wood is different from the other wood, but how much do you know about this kind wood.Balsa wood is unique from all other woods. Its properties make it valuable to bridge builders, wood carvers, surfers, and many others. Bridge builders have to be careful, however, when using Balsa. You can’t simply pick up two pieces of Balsa with the same dimensions lktjic2do and expect them to perform the same. Learn what to look for in this article.
Not all pieces of Balsa wood are equal. Besides having different densities (strength), Balsa wood also has different grain structures. What is a grain structure? Take a look at these pictures. Click for a closer view.
B grain Balsa wood lies somewhere in between A and C.
A grain Balsa wood has long fibers across the entire length of the sheet. Pieces like this are the best type for tension members. You should make sure that the grain goes straight across the piece of wood, and doesn’t go on an angle. C grain balsa rectangle wood is better for compression members. C grain is more stiff than A grain.
It is easy to tell the difference between the grain types when you are looking a full sheet of Balsa wood. But it isn’t so easy with a small square or rectangle piece. That is another reason to cut your own strips of balsa wood . Buy the way the balsa round offered in our store are all with high quality and cheap price.
All know that balsa wood is different from the other wood, but how much do you know about this kind wood.Balsa wood is unique from all other woods. Its properties make it valuable to bridge builders, wood carvers, surfers, and many others. Bridge builders have to be careful, however, when using Balsa. You can’t simply pick up two pieces of Balsa with the same dimensions lktjic2do and expect them to perform the same. Learn what to look for in this article.
Not all pieces of Balsa wood are equal. Besides having different densities (strength), Balsa wood also has different grain structures. What is a grain structure? Take a look at these pictures. Click for a closer view.
B grain Balsa wood lies somewhere in between A and C.
A grain Balsa wood has long fibers across the entire length of the sheet. Pieces like this are the best type for tension members. You should make sure that the grain goes straight across the piece of wood, and doesn’t go on an angle. C grain balsa rectangle wood is better for compression members. C grain is more stiff than A grain.
It is easy to tell the difference between the grain types when you are looking a full sheet of Balsa wood. But it isn’t so easy with a small square or rectangle piece. That is another reason to cut your own strips of balsa wood . Buy the way the balsa round offered in our store are all with high quality and cheap price.
A Description Of Wood For Hardwood Panels
There are many types of woods used in making hardwood panels. Some hardwoods
tend to be harder and more expensive than the softwood. One good example of a
hardwood that is not very hard is Balsa, which is used in making model planes.
Hardwoods are sawn to the size the customer specifies. They can be machined into
panels, dowels, beading, and more.
Beech tree is a straight-grained hardwood. It has a fine texture and light color. It is one of the toughest hardwoods in the industry, thus it is ideal in manufacturing toys, tool handles, and furniture. They can be bashed around and used often. Also, the beech tree is easy to work with.
Oak is another hardwood. It is really strong and has light color. It is also open grain and hard to work with. However, when treated, it can really look classy and elegant. Generally, it is used for high class furniture, panels, boats, beams in buildings, and veneers.
Mahogany is an easy to work with type of hardwood. It is reddish brown in color and really expensive. vpthaumrg Among its uses are expensive indoor furniture, bars, veneers, and shop fittings.
Teak, too, is a hardwood. It is also oily and golden brown in color. It is known for its high-resistance to moisture and outdoor weather. Teak hardwood is commonly used in manufacturing outdoor furniture, boat building, laboratory furniture, and equipment. But it can be used to make hardwood panels.
As mentioned at the outset, the balsa is a hardwood, but not very hard. It is among the softest hardwood in the market. Its color ranges from gray to white, and has a distinct velvety feel. Moreover, it has impressive strength to weight. Besides model airplanes, balsa hardwood is also used in making model building or subdivision construction.
Hard Maple tree has its famous sap turned into syrup. While the sapwood color ranges from cream to reddish brown, the hardwood itself varies from light to dark brown with red highlights. Sometimes, it has fine grain. Other times, it has wavy grain. It is 15% harder than Oaks and is subject to a medium degree of changes in color such as creamy white to golden in time.
Hardwood panels can also be made from Red Oak, North Americas most famous species for floorings. Its color is from pink to reddish brown, and it has a straight grain. It is hard and durable. Over time, it undergoes changes in color such as light amber of pink or tan to brown.
Rosewood is among the most beautiful hardwood species. It is preferred for decorative veneers, instruments, furniture, cabinets, and floors. Its color ranges from brown to deep purple with black highlights.
Beautiful and versatile-these are two characteristics of a Cherry wood. It is a fine-figured wood and has a straight grain. Its color varies from dark to reddish color as it ages. It is 25% softer than Oak.
Walnut, a dark and exclusive wood, is among the types used in making hardwood panels. Its color is from light brown to dark chocolate, and sometimes purple. It gains luster as it ages and has a straight graining. It is 20% softer than Oak. For more, the related article comes from http://www.balsafactory.com/.
Beech tree is a straight-grained hardwood. It has a fine texture and light color. It is one of the toughest hardwoods in the industry, thus it is ideal in manufacturing toys, tool handles, and furniture. They can be bashed around and used often. Also, the beech tree is easy to work with.
Oak is another hardwood. It is really strong and has light color. It is also open grain and hard to work with. However, when treated, it can really look classy and elegant. Generally, it is used for high class furniture, panels, boats, beams in buildings, and veneers.
Mahogany is an easy to work with type of hardwood. It is reddish brown in color and really expensive. vpthaumrg Among its uses are expensive indoor furniture, bars, veneers, and shop fittings.
Teak, too, is a hardwood. It is also oily and golden brown in color. It is known for its high-resistance to moisture and outdoor weather. Teak hardwood is commonly used in manufacturing outdoor furniture, boat building, laboratory furniture, and equipment. But it can be used to make hardwood panels.
As mentioned at the outset, the balsa is a hardwood, but not very hard. It is among the softest hardwood in the market. Its color ranges from gray to white, and has a distinct velvety feel. Moreover, it has impressive strength to weight. Besides model airplanes, balsa hardwood is also used in making model building or subdivision construction.
Hard Maple tree has its famous sap turned into syrup. While the sapwood color ranges from cream to reddish brown, the hardwood itself varies from light to dark brown with red highlights. Sometimes, it has fine grain. Other times, it has wavy grain. It is 15% harder than Oaks and is subject to a medium degree of changes in color such as creamy white to golden in time.
Hardwood panels can also be made from Red Oak, North Americas most famous species for floorings. Its color is from pink to reddish brown, and it has a straight grain. It is hard and durable. Over time, it undergoes changes in color such as light amber of pink or tan to brown.
Rosewood is among the most beautiful hardwood species. It is preferred for decorative veneers, instruments, furniture, cabinets, and floors. Its color ranges from brown to deep purple with black highlights.
Beautiful and versatile-these are two characteristics of a Cherry wood. It is a fine-figured wood and has a straight grain. Its color varies from dark to reddish color as it ages. It is 25% softer than Oak.
Walnut, a dark and exclusive wood, is among the types used in making hardwood panels. Its color is from light brown to dark chocolate, and sometimes purple. It gains luster as it ages and has a straight graining. It is 20% softer than Oak. For more, the related article comes from http://www.balsafactory.com/.
2013年7月22日星期一
HOW DOES BALSA WOOD GROW?
There is no such thing as entire forests of balsa trees. They grow singly or
in very small, widely scattered groups in the jungle. For hundreds of years,
balsa was actually considered a weed tree. They reproduce by growing hundreds of
long seed pods, which eventually open up and, with the help of the wind, scatter
thousands of new seeds over a large area of the jungle. Each seed is airborne on
its own small wisp of down, similar to the way dandelion seeds spread. The seeds
eventually fall to the ground and are covered by the litter of the jungle. a
There they lay and accumulate until one day there is an opening in the jungle canopy large enough for the sun's rays to strike the jungle floor and start the seeds growing. Wherever there is an opening, made either by a farmer or by another tree dying, balsa will spring up as thick as grass. A farmer is often hard put to keep his food plot clear of balsa. As the new balsa trees grow, the strongest will become predominate and the weaker trees will die. By the time they are mature, there may be only one or two basa trees to an acre of jungle.
Balsa trees grow very rapidly (like all pesky weeds). Six months after germination, the tree is about 1-1/2 inches in diameter and 10 - 12 feet tall. In 6 to 10 years the tree is ready for cutting, having reached a height of 60 to 90 feet tall and a diameter of 12 to 45 inches. If left to continue growing, the new wood being grown on the outside layers becomes very hard and the tree begins to rot in the center.
Unharvested, a balsa tree may grow to a diameter of 6 feet or more, b1giodhxr but very little usable lumber can be obtained from a tree of this size. The basla leaf is similar in shape to a grape leaf, only a lot bigger. When the tree is young, these leaves measure a much as four feet across. They become progressivly smaller as the tree grows older, until they are about 8 - 10 inches across. Balsa is one of the few trees in the jungle which has a simple leaf shape. This fact alone makes the balsa tree stand out in the jungle. The more related article comes from http://www.balsafactory.com/.
There they lay and accumulate until one day there is an opening in the jungle canopy large enough for the sun's rays to strike the jungle floor and start the seeds growing. Wherever there is an opening, made either by a farmer or by another tree dying, balsa will spring up as thick as grass. A farmer is often hard put to keep his food plot clear of balsa. As the new balsa trees grow, the strongest will become predominate and the weaker trees will die. By the time they are mature, there may be only one or two basa trees to an acre of jungle.
Balsa trees grow very rapidly (like all pesky weeds). Six months after germination, the tree is about 1-1/2 inches in diameter and 10 - 12 feet tall. In 6 to 10 years the tree is ready for cutting, having reached a height of 60 to 90 feet tall and a diameter of 12 to 45 inches. If left to continue growing, the new wood being grown on the outside layers becomes very hard and the tree begins to rot in the center.
Unharvested, a balsa tree may grow to a diameter of 6 feet or more, b1giodhxr but very little usable lumber can be obtained from a tree of this size. The basla leaf is similar in shape to a grape leaf, only a lot bigger. When the tree is young, these leaves measure a much as four feet across. They become progressivly smaller as the tree grows older, until they are about 8 - 10 inches across. Balsa is one of the few trees in the jungle which has a simple leaf shape. This fact alone makes the balsa tree stand out in the jungle. The more related article comes from http://www.balsafactory.com/.
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