Examination of The Little Matchstick Girl

Examination of The Little Matchstick Girl First published in 1845, The Little Match Girl by  Hans Christian Anderson  is a story about a young impoverished girl trying to sell matches on the street on New Years Eve who is afraid to go home without selling enough for fear of an abusive father. This tragic short story paints a dismal picture of life for the poor in the 1840s but also carries with it that grim hope of a fairy tale with visions of huge Christmas trees and shooting stars appearing before the young match girl- her dying wishes and dreams. The Harsh Realities of Poverty Andersons The Little Match Girl is not far from classic fairy tales by the Brothers Grimm- they both share a certain darkness to their content, a melancholic and an often morbid obsession with consequences for actions or for merely existing. Its an often studied piece in academic circles. In The Little Match Girl, Andersons titular character dies by the end of the piece, but the story is much more about the perseverance of hope. In these sparse, unforgiving lines, Hans Christian Andersen packs so much simple beauty and hope: The girl is cold, barefoot, and poor- without a friend in the world (it seems)- but she is not without hope. She dreams of warmth and light, of a time when she will be surrounded by love, and filled with happiness. Its so far outside of the realm of her current experience that most of us would have long since given up such dreams, but she holds on. Still, the harsh realities of poverty haunt the little girls reality- she must sell a match for fear of being beaten by her father upon returning home and this fear propels her to stay outside all night, which ultimately leads to her death by hypothermia. Lessons and Adaptations Thanks to its brevity and delicate approach to the topic of death, The Little Match Girl serves as a great tool, like most fairy tales, to teach children important lessons about the tougher topics in life like death and loss as well as social issues like poverty and charity. We may not want to think about the horrible things that happen every day, and its certainly hard to explain such things to our children. It does seem, though, that we can often learn the greatest lessons from the children- in how they deal with the most hopeless situations. In those final moments, this little girl sees visions of splendor. She sees hope. But, her passing- punctuated by the shooting of a star in the night sky- is tragic and troubling. Fortunately, there have also been many adaptations of this short piece by Hans Christian Anderson including several animated and live action short films which provide an easier way for children to access the themes of this brilliant short work of fiction.

Examination of The Little Matchstick Girl

Examination of The Little Matchstick Girl First published in 1845, The Little Match Girl by  Hans Christian Anderson  is a story about a young impoverished girl trying to sell matches on the street on New Years Eve who is afraid to go home without selling enough for fear of an abusive father. This tragic short story paints a dismal picture of life for the poor in the 1840s but also carries with it that grim hope of a fairy tale with visions of huge Christmas trees and shooting stars appearing before the young match girl- her dying wishes and dreams. The Harsh Realities of Poverty Andersons The Little Match Girl is not far from classic fairy tales by the Brothers Grimm- they both share a certain darkness to their content, a melancholic and an often morbid obsession with consequences for actions or for merely existing. Its an often studied piece in academic circles. In The Little Match Girl, Andersons titular character dies by the end of the piece, but the story is much more about the perseverance of hope. In these sparse, unforgiving lines, Hans Christian Andersen packs so much simple beauty and hope: The girl is cold, barefoot, and poor- without a friend in the world (it seems)- but she is not without hope. She dreams of warmth and light, of a time when she will be surrounded by love, and filled with happiness. Its so far outside of the realm of her current experience that most of us would have long since given up such dreams, but she holds on. Still, the harsh realities of poverty haunt the little girls reality- she must sell a match for fear of being beaten by her father upon returning home and this fear propels her to stay outside all night, which ultimately leads to her death by hypothermia. Lessons and Adaptations Thanks to its brevity and delicate approach to the topic of death, The Little Match Girl serves as a great tool, like most fairy tales, to teach children important lessons about the tougher topics in life like death and loss as well as social issues like poverty and charity. We may not want to think about the horrible things that happen every day, and its certainly hard to explain such things to our children. It does seem, though, that we can often learn the greatest lessons from the children- in how they deal with the most hopeless situations. In those final moments, this little girl sees visions of splendor. She sees hope. But, her passing- punctuated by the shooting of a star in the night sky- is tragic and troubling. Fortunately, there have also been many adaptations of this short piece by Hans Christian Anderson including several animated and live action short films which provide an easier way for children to access the themes of this brilliant short work of fiction.

Examination of The Little Matchstick Girl

Examination of The Little Matchstick Girl First published in 1845, The Little Match Girl by  Hans Christian Anderson  is a story about a young impoverished girl trying to sell matches on the street on New Years Eve who is afraid to go home without selling enough for fear of an abusive father. This tragic short story paints a dismal picture of life for the poor in the 1840s but also carries with it that grim hope of a fairy tale with visions of huge Christmas trees and shooting stars appearing before the young match girl- her dying wishes and dreams. The Harsh Realities of Poverty Andersons The Little Match Girl is not far from classic fairy tales by the Brothers Grimm- they both share a certain darkness to their content, a melancholic and an often morbid obsession with consequences for actions or for merely existing. Its an often studied piece in academic circles. In The Little Match Girl, Andersons titular character dies by the end of the piece, but the story is much more about the perseverance of hope. In these sparse, unforgiving lines, Hans Christian Andersen packs so much simple beauty and hope: The girl is cold, barefoot, and poor- without a friend in the world (it seems)- but she is not without hope. She dreams of warmth and light, of a time when she will be surrounded by love, and filled with happiness. Its so far outside of the realm of her current experience that most of us would have long since given up such dreams, but she holds on. Still, the harsh realities of poverty haunt the little girls reality- she must sell a match for fear of being beaten by her father upon returning home and this fear propels her to stay outside all night, which ultimately leads to her death by hypothermia. Lessons and Adaptations Thanks to its brevity and delicate approach to the topic of death, The Little Match Girl serves as a great tool, like most fairy tales, to teach children important lessons about the tougher topics in life like death and loss as well as social issues like poverty and charity. We may not want to think about the horrible things that happen every day, and its certainly hard to explain such things to our children. It does seem, though, that we can often learn the greatest lessons from the children- in how they deal with the most hopeless situations. In those final moments, this little girl sees visions of splendor. She sees hope. But, her passing- punctuated by the shooting of a star in the night sky- is tragic and troubling. Fortunately, there have also been many adaptations of this short piece by Hans Christian Anderson including several animated and live action short films which provide an easier way for children to access the themes of this brilliant short work of fiction.

Archaeological Evidence for Domesticating Potatoes

Archaeological Evidence for Domesticating Potatoes Potato (Solanum tuberosum) belongs to the Solanaceae family, which also includes tomatoes, eggplants, and chili peppers. Potato is currently the second widest used staple crop in the world. It was first domesticated in South America, in the Andean highlands, between Peru and Bolivia, more than 10,000 years ago. Different species of potato (solanum) exist, but the most common worldwide is the S. tuberosum ssp. Tuberosum. This species was introduced in Europe in the mid-1800s from Chile when a fungus disease almost completely destroyed S. tuberosum ssp. andigena, the original species imported by the Spanish directly from the Andes in the 1500s. The edible part of the potato is its root, called tuber. Because the tuber of wild potatoes contains poisonous alkaloids, one of the first steps made by ancient Andean farmers toward domestication was to select and replant a variety with low alkaloid contents. Also, since wild tubers are quite small, farmers also selected the bigger examples. Archaeological Evidence of Potato Cultivation Archaeological evidence suggests that people were consuming potatoes in the Andes as early as 13,000 years ago. In the Tres Ventanas Cave in the Peruvian highlands, several root remains, including S. tuberosum, have been recorded and direct-dated to 5800 cal B.C. (C14 calibrated date) Also, remains of 20 potato tubers, both white and sweet potato, dating between 2000 and 1200 B.C. have been found in the trash middens of four archaeological sites in the Casma Valley, on the coast of Peru. Finally, in an Inca period site near Lima, called Pachacamac, pieces of charcoal have been found within the remains of potato tubers suggesting that one of the possible preparation of this tuber involved baking. Potatoes Around the World Although this may be due to a lack of data, current evidence indicates that the spread of potatoes from Andean highlands to the coast and the rest of the Americas was a slow process. Potatoes reached Mexico by 3000-2000 B.C., probably passing through Lower Central America or the Caribbean Islands. In Europe and North America, the South American root arrived only in the 16th and 17th century, respectively, after its importation by the first Spanish explorers. Sources Hancock, James, F., 2004, Plant Evolution and the Origin of Crop Species. Second Edition. CABI Publishing, Cambridge, MA Ugent Donald, Sheila Pozoroski and Thomas Pozoroski, 1982, Archaeological Potato Tuber Remains from the Casma Valley of Peru, Economic Botany, Vol. 36, No. 2, pp. 182-192.

A critical study of credit risk management in the First Bank of Dissertation

A critical study of credit risk management in the First Bank of Nigeria PLC - Dissertation Example First one is reaction against bank losses from the Newton, it is realized that losses are unbearable after the losses have occurred. The second aspect is that that bank has been pushed by the recent progress in the area of financing securitization, commercial paper and competition with other non-banks to find possible loan borrowers. Big and stable companies have been seen to shift in the open market sources like those in bond markets of finance.The degree of risk of assumed losses can be minimized by organizing and managing the lending criteria with professionalism and also with active approach. Credit risk management issues can be measured if bank could tap progressively refined measuring technique.The adoption of more rigorous credit risk has been facilitated by the technological developments, predominantly the growing availability of low cost computing power and communication. A lot of banks still have a long way to go in the implementation of such new approaches.Competition in t he provision of financial services is increasing probable due to the acceleration of change in credit risk management in the banks which is viewed as an unavoidable response to an environment and, thus need to classify new and gainful business prospects and appropriately measure the related risk is mounting for the banks and other financial institutions. ... When banks extend their credit considering that borrowers will pay back their loan amounts then the extended credit to the borrowers may be at the risk of default, banks income decreases due to the necessity for the provision for the loans as some borrowers usually default. Commercial banks are exposed to an additional risk of variability as they do not have a clue of what proportion of loan borrowers will default. As a matter of fact almost all the financial institutions bear a certain degree of risk when these institutions lend to consumers and to the businesses, hence when certain borrowers fail to repay the loan amount, they experience some loan losses. Credit risk face by a bank has a possibility of loss arising in case of non-repayment of interest or principal or both. Payment delays and the credit risk among procedures can be transferred by the banks and other financial intermediaries (Demirguc-kunt and Huzinga, 2000). Certain techniques are developed for the measurement of th e credit risk which can be linked with pace of evolution (Laker, 2007; McDonough, 1998; Couhy, 2005; Brown, 2004). Different banks are differentiated with their adoption of different credit risk management policies. A bank having assets that constitutes of loans in their portfolio are relatively illiquid and exhibits the highest credit risk (Koch and MacDonald, 2000). According to the asymmetric information, good borrowers and bad borrowers are might be impossible to distinguish, which can result into an adverse selection and moral hazards problems (Auronen, 2003). Due to the adverse selection and moral hazards banks are led to substantial accumulation of non-performing accounts.

Financial report Essay Example | Topics and Well Written Essays - 1000 words - 1

Financial report - Essay Example The process of determining the viable option entailed the application of mathematical techniques and models such as the regression analysis, the LM test and the decision rule to arrive at the most promising and viable investment option. Therefore, 50 countries were used to apply these tests, while using variables such as the GDP per capita, the inflation rates, the consumer price index and the secondary schools to modify the mathematical models and reach at a conclusive decision on the most promising investment opportunity that could be adopted. After the application of the mathematical models and the modification of these models with the above mentioned variable, a decision was reached that investing the 2 billion in secondary school education was more promising than investing the same in the banking sector, where the money could have been used to bail out the banks. Financial decisions are among the most difficult decisions to reach. This because, while making a financial decision, varied considerations should d be made, which call for a greater level of accuracy and precise estimations (Ingersoll, 1987 p47). Additionally, financial decisions are not hundred percent dependable, owing to the large number of factors that affect financial investments and savings. Most significant is the fact that the complexity of making financial decisions is added to, by the nature of the risks involved in the financial sector, where a slight mistake either in prediction or estimation could mean the success or failure of the investments made (Batyrshin, 2007 p23). Therefore, it is extremely important to ensure that financial decisions are reached with the highest degree of precision possible, while at the same time putting into consideration all the factors that determine the viability of the decisions. This financial report presents the considerations that were

Airplanes And Aircraft Engineering Essay

Airplanes And Aircraft Engineering Essay Aircrafts are capable of flight using forward motion that generates lift as the wing moves through the air. Airplane is propelled by a screw propeller or a high-velocity jet, and supported by the dynamic reaction of the air against its wings. There are many components of an airplane however the essential components are a wing system to sustain it during flight, tail surfaces to stabilize the wing, movable surfaces to control the attitude of the machine in flight, and a power plant to provide the thrust to push the craft through the air. An enclosed body which is known as the fuselage houses the crew, passengers, and cargo, as well as the controls and instruments used by the navigator. An airplane also requires a support system when it is at rest on a surface and during takeoff and landing. Airplanes have different shapes and sizes depending on the purpose, but the modern airplanes have some features in common. They are fuselage, tail assembly and control surfaces, wing, power-plant and landing gear. In this report the prime focus is on the Prime components of the aircraft assuring structural integrity while meeting requirements for optimum operational performance of an aircraft. The empennage is also known as the tail is the rear part of the aircraft. Usually it includes the stabilizers, rudder and elevator as many other components as seen below.. It is constructed depending on the aircraft for example in fighter jets it may be constructed around the exhaust nozzle. In commercial aircrafts the empennage is built from the cabin pressure-cone and may contain the Flight Data Recorder (black box), Cockpit Voice Recorder and the pressure out-flow valve. There is another design which does not require an elevator. In this design there is a one-piece horizontal stabilizer that pivots from a central hinge point, such a design is known as a stabilator. 2. Wings: As we can see below is a wing. Wings are airfoils attached to each side of the fuselage and are the main lifting surfaces that help the airplane during flight. There are great variations in the wing designs, sizes, and shapes used by the various manufacturers. Each of these specifications fulfils a certain need with respect to the performance for an airplane. Wings may be attached at the top, middle, or lower portion of the fuselage and are referred to as high-, mid-, and low-wing, respectively. The number of wings may vary. Monoplanes contain a single set of wings while those with two sets are called Biplanes. The principal structural parts of the wing are SPARS, RIBS, and STRINGERS. These are reinforced by trusses, I-beams, tubing, or other devices, including the skin. The wing ribs determine the shape and thickness of the wing (airfoil). Attached to the rear, or trailing, edges of the wings are two types of control surfaces referred to as ailerons and flaps. http://khup.com/view/2_keyword-design-of-aircraft-rib-structure/aircraft-structure.html 2.1 Spars 2.1.1. Definition: The spar is the main structural member of the wing, in a fixed-wing aircraft, running span wise at right angles to the fuselage. There may be more than 1 spar or none at all. 2.1.2 Uses: Fight loads and the weight of the wings whilst on the ground is carried by spars. Spars are also used in aerofoil surfaces such as the tail plane, fin and serve a similar function, although the loads transmitted may be different. 2.1.3. Loads: Upward bending loads from the wing lift force that supports the fuselage in flight. Downward bending loads due to the weights acting. Drag loads dependent on airspeed and inertia. Rolling inertia loads. Chordwise twisting loads due to aerodynamic effects at high airspeeds. 2.1.4. Materials: Wooden construction Early aircraft used spars carved from solid Spruce or Ash. Wooden spar types have been used and tried with such as spars which are box-section in form; or laminated spars which are laid up in a jig, and compression glued to retain the wing dihedral. Wooden spars are still being used in light aircraft such as the Robin DR400. Metal spars A common metal spar in a general aviation aircraft generally consists of a sheet aluminium spar web, with L or T -shaped spar caps being welded or riveted to the top and bottom of the sheet to prevent buckling under applied loads. Tubular metal spars The German Junkers J.I armoured fuselage ground-attack sesquiplane of 1917 used a Hugo Junkers -designed multi-tube network of several tubular wing spars, placed just under the corrugated duralumin wing covering and with each tubular spar connected to the adjacent one with a space frame of triangulated duralumin strips riveted onto the spars. Advantages Gives substantial increase in structural strength at a time when most other designs were built with wood-structure wings. Geodesic construction In aircraft such as the Vickers Wellington, a geodesic wing spar structure was employed which had the advantages of being lightweight and able to withstand heavy battle damage with only partial loss of strength. Composite construction Nowadays aircraft use carbon fibre and Kevlar in their construction, ranging in size from large airliners to small aircraft. Companies have employed solid fibreglass spars in their designs but now often use carbon fibre in their high performance gliders such as the ASG 29 Advantages The increase in strength and reduction in weight compared to the earlier fibreglass-sparred aircraft allows a greater quantity of water ballast to be carried. 2.1.5. Disadvantages: The wooden spar has a danger of the deteriorating effect that atmospheric conditions, both dry and wet, and biological threats such as wood-boring insect infestation and fungal attack can have on the wooded spars; consequently regular inspections are often mandated to maintain airworthiness. Similar disadvantages on metal spars limit their use. 2.2 Ribs 2.2.1. Definition: In an aircraft,  ribs  are forming elements of the structure of a  wing. Ribs are attached to the main  spar, and by being repeated at frequent intervals they form a skeletal shape. Usually ribs incorporate the  airfoil  shape of the wing. They are the cross-section shape of a wing. The ribs can be classified according to the types of load acting on it. Lightly loaded ribs are subjected to aerodynamic loads while a rib is subjected to concentrated forces transferred from primary points is considered as moderately loaded rib. 2.2.2 Function: Maintain the sectional shape of wing box. Function as panel breakers for stringers. Provide support for attachment of other systems. Distribute locally applied air pressure loads. 2.2.3. Stiffness: The ribs contribute little to the overall stiffness of the wing box and also carry little of global bend and twist loads acting on the wing. 2.2.4. Loads: Loads acting on the ribs are of three types: Loads transmitted from the skin-stringer wing panels. Concentrated forces transmitted to the rib due to landing gear connections, power plants nacelle connections, etc Body forces in the form of gravitational forces. Inertia forces due to wing structural mass. 2.2.5. Materials: Ribs are made out of wood, metal, plastic, composites, foam. Carbon reinforced composites (CFC) or Carbon Fibre Reinforced Plastics (CFRP) are used extensively in aircraft structures as they give high stiffness and strength with lower weight. 2.2.6. Advantages and Disadvantages: Wooden ribs are subjected to atmospheric deterioration. http://khup.com/view/2_keyword-loads-acting-on-ribs/report-5.html 2.3. Stringers or Longerons Interior of a Boeing/ Stearman PT-17 showing small channel section stringers. 2.3.1. Definition: A longeron  or  stringer  or  stiffener  is a thin strip of wood, metal or carbon fibre, to which the skin of the aircraft is fastened. Longerons are attached to  formers  in the case of the fuselage, or  ribs  in the case of a wing, or  empennage. In early aircraft, a fabric covering was sewn to the longerons, and then stretched tight by painting it with  dope, which would make the fabric shrink, and become stiff. 2.3.2. Properties: Longeron and stringer are used interchangeably. If the longitudinal members in a fuselage are less in number (usually 4 to 8), they are called longerons. The longeron system requires that the fuselage frames be closely spaced (about every 4 to 6 in/10 to 15 cm). If the longitudinal members are numerous (usually 50 to 100) then they are called stringers. In the stringer system the longitudinal members are smaller and the frames are spaced farther apart (about 15 to 20 in/38 to 51 cm). Longerons are of larger cross-section when compared to stringers. 2.3.3. Advantages: On modern aircraft the stringer system is more common because its more weight efficient despite being complex to construct and analyze. Some aircraft, use a combination of both stringers and longerons. The stringers carry bending moments and axial forces. They also stabilize the thin fuselage skin. 3. Power Plant: A power plant consists of propeller and engine.   The main function of the engine is to supply power to run the propeller. It also generates electrical power, provides vacuum source for flight instruments, and provides a source of heat for the pilot and passengers. The engine is covered by a cowling, or in some airplanes, surrounded by a nacelle. Its purpose is to streamline the flow of air around the engine and to help cool the engine by ducting air around the cylinders. The propeller on the front of the engine converts the rotating force of the engine into forward acting force called thrust that helps move the airplane through the air. 4. Landing gear: Every matter has its base on which it stands. The principle support of the airplane when parked, taxiing, taking off, or when landing is its landing gear. The most common type of landing gear consists of wheels, but airplanes can also be equipped with floats for water operations, or skis for landing on snow. The landing gear consists of three wheels two main wheels-tail wheels and a third wheel positioned either at the front or rear of the airplane-nose wheel, the design is referred to as a tricycle gear A steerable nose wheel or tail wheel permits the airplane to be controlled throughout all operations while on the ground.    5. Fuselage Fuselage is aircrafts main body and covers the majority of the airplane, it holds all other pieces of the aircraft together and other large components are attached to it. The fuselage is generally streamlined to reduce drag. Designs for fuselages vary widely. The fuselage houses the cockpit where the pilot and flight crew sit and it provides areas for passengers and cargo. Some aircraft carry fuel in the fuselage; others carry the fuel in the wings. 5.1. Types of Fuselage Structures: Truss Structure Geodesic construction Monocoque Shell Semi-monocoque 5.5.1. Truss Structure: This kind of structure is used in lightweight aircraft using welded steel tube trusses. A box truss fuselage structure can also be built out of wood-covered with plywood. 5.1.2. Geodesic construction: Geodesic structural elements used by during the wars, World War II, to form the whole of the fuselage, including its shape. In this multiple flat strip stringers are wound about the formers in opposite spiral directions, giving a basket-like appearance. This proved to be light, strong, and rigid and had the advantage of being made almost entirely of wood. Its redundant structure can survive localized damage without catastrophic failure. 5.1.3. Monocoque Shell In this method, the exterior surface of the fuselage is also the primary structure. A typical early form of this built using moulded plywood, where the layers of plywood are formed over a plug or within a mould. A later form of this structure uses fibreglass cloth impregnated with polyester or epoxy resin, instead of plywood, as the skin. A simple form of this used in some amateur-built aircraft uses rigid expanded foam plastic as the core, with a fibreglass covering, eliminating the necessity of fabricating moulds, but requiring more effort in finishing. An example of a larger moulded plywood aircraft is the de Havilland Mosquito fighter/light bomber of World War II. No plywood-skin fuselage is truly monocoque, since stiffening elements are incorporated into the structure to carry concentrated loads that would otherwise buckle the thin skin. The use of moulded fibreglass using negative (female) moulds (which give a nearly finished product) is prevalent in the series production of ma ny modern sailplanes. 5.1.4. Semi-monocoque. This is the preferred method of constructing an all-aluminium fuselage. First, a series of frames in the shape of the fuselage cross sections are held in position on a rigid fixture, or jig. These frames are then joined with lightweight longitudinal elements called stringers. These are in turn covered with a skin of sheet aluminium, attached by riveting or by bonding with special adhesives. The fixture is then disassembled and removed from the completed fuselage shell, which is then fitted out with wiring, controls, and interior equipment such as seats and luggage bins. Most modern large aircraft are built using this technique, but use several large sections constructed in this fashion which are then joined with fasteners to form the complete fuselage. As the accuracy of the final product is determined largely by the costly fixture, this form is suitable for series production, where a large number of identical aircraft are to be produced. Both monocoque and semi-monocoque are referred to as stressed skin structures as all or a portion of the external load (i.e. from wings and empennage, and from discrete masses such as the engine) is taken by the surface covering. In addition, the entire load from internal pressurization is carried (as skin tension) by the external skin. As stated above we are now familiar with the prime components of an airplane. Now let us get into detail, and understand the components such as the bulkhead, Frames, Ribs, Spars, Stringers (Longerons), and Skins. 5.2. BULKHEADS 5.2.1. Definition: A bulkhead is the physical partition that divides a plane or a fuselage into different classes or sections. Typically, a bulkhead is a wall but can also be a curtain or screen. In addition to separating classes from one another, i.e. business and economy, bulkheads can be found throughout the plane, separating the seats from the galley and lavatory areas. Bulkheads also contribute to the structural stability and rigidity of a craft. 5.2.2. Uses: 5.2.3. Loads: 5.2.4. Materials: 5.3. FRAMES 5.3.1. Definition: The airframe provides the structure to which all other components are attached. Airframes may be welded tube, sheet metal, composite, or simply tubes bolted together. A combination of construction methods may also be employed. The airframes with the greatest strength-to-weight ratios are a carbon fibre material or the welded tube structure, which has been in use for a number of years. 5.3.2. Uses: 5.3.3. Loads: 5.3.4. Materials: Material Selection Material Usage Advantages Disadvantages High strength unidirectional graphite/epoxy Spar caps High strength, low weight High cost, low impact resistance, difficult to manufacture High modulus  ±45 ° graphite/epoxy Skin (w/foam core), Shear web, Wing ribs High strength, low weight, low surface roughness, stealth characteristics High cost, low impact resistance, difficult to manufacture Aluminum 7075-T6 Bulkheads, Longerons Low cost, ease of manufacture, good sturctural efficiency Low strength, not weldable Stainless steel (AM-350) Landing gear Relatively low cost, high strength, corrosion resistance High weight Nickel (Hastelloy B) Nozzles and ducting Temperature resistance Low structural resistance Kevlar Internal armor High strength, low weight, high impact resistance High cost, difficult to manufacture