Flight has been a dream of mankind, after the completion of the first powered airplane flight initiative from the Wright brothers, aviation technology is changing rapidly. From ancient light aircraft to a hundred tons airliner or even a fighter jet that flexible than eagle, flying technology has become one of the amazing achievement in science and technology. Aerodynamics is a fundamental principle of flight and civil aircraft unit, in order to have the ability to move on the sky, the force balance of the air lift must be greater than weight and the thrust is greater than the drag. An airplane uses wings for lift and thrust engines. Drag is reduced by the smooth shape of an airplane and its weight is controlled by the materials from which it is constructed.
The Evolution of Jet Engines The jet engine is a complex propulsion device which draws in air by means of an intake, compresses it, heats it by means of an internal combustion engine, which when expelled it turns a turbine to produce thrust, resulting in a force sufficient enough to propell the aircraft in the opposite direction (Morgan 67). When the jet engine was thought of back in the 1920's the world never thought it would become a reality, but by 1941 the first successful jet flight was flown in England. Since then the types of engines have changed, but the basic principals have remained the same. In 1921 thoughts of a jet engine were based upon adaptations of piston engines and were usually very heavy and complicated. These thoughts were refined in the 1930's when the turbine engine design lead to the patent of the turbojet engine by Sir Frank Whittle of Great Britian.
The first World War expedited the evolution of aircraft technology, which continued through World War II. These developments revolutionized military strategy and contributed greatly to the final outcomes. The Wright brothers Orville and Wilbur are considered to be the fathers of modern flight. They were not the first to build and fly experimental aircraft, but they were the first who invented controls that made flight controllable. Before they revolutionized flight, many other methods had been attempted such as people jumping off buildings or other high locations with make shift wings attached to their arms, or machines that bounced up and down with something akin to an umbrella on top of them.
Review of Literature Bernoulli’s Principle A Swiss scientist who was named Daniel Bernoulli in the 18th century discovered the Bernoulli’s Principle. Bernoulli (2009) stated that when the velocity of a gas or a liquid increases the pressure of the fluid would then decrease. This can be applied to many things, such as a plane or bird. Basically anything that uses wings to fly uses the Bernoulli’s Principle. Both birds and planes take an advantage of the Bernoulli the Bernoulli’s Principle.
Also, the shape of the blended wing body allows for a much smaller wetted area, which in turn increases the lift to drag ratio. 1.2 Historical Background The transcendence of the aerodynamically efficient BWB design from the standard aircraft design began during the World War II in order to outstrip the already existing designs to prove the superiority and efficiency in military power. The concepts of tailless aircraft and Flying-wing design were remarkably bought to life by the pioneers in USA and Germany. • Early Flying Wing projects After the World War I, in 1912 an English Engineer John William Dunne developed the first successful tailless aircraft. Dunne’s based his design on his success with Tailless gliders.
The jet airplane allowed more passengers to be transferred efficiently and safely making flying in reach of the general public. Problem By the end of WWII in 1945 the jet engine had become a suitable alternative for the piston engine. The new engine required a complete redesign of an aircraft. The transition to high performance aircrafts created a large number of challenges that needed to be dealt with in order to succeed. Knowledge of the old piston aircraft was
Since this was not a popular topic at this time, the authors go on to predict a very successful future for this design due to its increase in efficiency of ... ... middle of paper ... ...ely strong structure and is used widely throughout the aerospace field. It can absorb extremely high forces, all while staying in the elastic deformation stage. When tested by Vos, a morphed airfoil using the pressure adaptive honeycomb generated 20% more lift as compared to without the newly developed structure, which shows how much potential this new material happens. In conclusion, there is still extensive research being conducted in this field. Variable camber wings have the potential to revolutionize the way aircrafts fly.
Conclusion As a conclusion, I hope these previous paragraphs have given you the knowledge that everyone dealing with physics or airplanes should possess. These factors may not show all that physics has to contribute in the flight of an aircraft but they do show the major contributions. After reading these paragraphs, you should now have greater respect for physics, not just in airplanes, but in the world, because it is all around you and nothing can exist or work without it.
The Wright Brothers perfected their design of the heavier than air flying ma... ... middle of paper ... ...Another way to decrease the disturbance over the wings are to move the wings lower than the horizontal stabilizer or visa versa to allow the shock waves moving over each wing to miss each other. Most aircraft today do not have enough fuel to maintain the speed of sound for great distances. Engineers have designed a brand new aircraft known as the F-22, which has the ability to fly an entire mission at supersonic speeds. The speed of light is unattainable by aircraft due to drag. We have no materials that could with stand the heat caused by the friction of the air moving over its body, nor materials strong enough to be able to take the enormous drag.
As a beginning, Wright Brothers tended to work on non-carrying gliders. Because understanding of basics of flying can help them to make complex things. Before they start to work on their gliders, they focused on the studies made in past. One of the people who Wright Brothers regarded his study as an important was Sir George Couley (1773-1857). He was the first who used scientific methods in aviation.