...Drag Racing is a sport to see who has the best car. What is the history of Drag racing. Drag Racing is very fun to do and watch. If you have seen a race you know how fun they are. Drag racing is fun but dangerous. There are some cars that do not make it off the track in one piece or not run. A speed strip is 200 to 300 feet wide and 500 feet long and that is a big strip. But the longer the strip is the smaller it gets. The smaller the strip gets the faster the car gets and the harder it is to drive the car. The car may or may not lose control. People sometimes do not live if they do lose control. It is a very dangerous sport. But it all starts in the 1930s in a dry river bed. In the 1930s top steed was 100 mph...
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...Some people think that drag racing should be banned or illegal. They say it is something that is too dangerous to do. Drag racing is not just something one can play around with doing. It is a way of life, not just a hobby. Drag racing has been around for decades, brings people together, and gives a person an adrenaline rush. Racing has been viewed in many aspects through many years. People have raced on the back of horses, on motorcycles, and of course in motor vehicles. Drag racing, itself, has been around as long as cars have been on the road. It has become very popular within the last 50 to 60 years. There have been a great number of laws placed against drag racing on the public streets through these years. Now, many racers stick to taking their hot rods to the track to race them. At these tracks, many people come together to gawk and to talk big to each other. People often times try to bet on the car that they think will get down the track the quickest. Through everything, the people that have the same passion for racing, become a type of family. Everyone has each other’s backs. A racing family is completely different from any other type of...
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...sparked my interest. This year was the opening of the new drag strip in Nevis. Racing had become a huge sport in Nevis after the release of the movie ‘The Fast and the Furious’. I could recall one Sunday evening when my sister and I attended a party at Farms Estate where we watched that movie. The thrill and excitement in the air about racing were intense. People were bouncing off their seat trying to reenact scenes, shouting at each other, “Oh that’s my car, I won!” From that point onward racing soared. Many young men started to buy Japanese cars which were better for racing than the American built cars. However, many persons tried to race on the streets but were apprehended by the police, as street racing is illegal. There was one suitable place that these young men thought of which was the Long Point Road. That road led to the deep water pier and was mainly used to deliver or collect goods or cargo sent from overseas. The road is a mile long and at the time there were not many houses or businesses in the area. The young men took to that street. They would meet up at random times in the dead of night to have races or practice performing car and bike tricks, leaving their tire tracks behind. I was never able to see a race but I heard from many persons how exciting the races were. As the group of young men interested in racing started to increase, they decided to establish an association called the Nevis Drag Racing Association (NDRA). This development was the initial step...
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...more women are starting to ride motorcycles. Marketing opportunity #2: Motorized Motorcycles for kids As all parents know that have children, power wheels makes motorized vehicles for children to ride. I strongly believe that Harley should introduce a kid’s motorized vehicle. I would categorize this opportunity as a single. I do not think that it would be a great expense or risk to introduce this line. I think it would be a positive impact on public relations, especially to those parents who own Harley motorcycles already. I believe that this opportunity may only be a minor improvement to the financials. Marketing opportunity #3: Sponsoring teen bike racing I think Harley Davidson should sponsor young teenage drivers aspiring to become drag professionals in the drag racing sport. The cars that Jr. Drag Racing League competitors race are called Jr. Dragsters and are half-scale versions of Top Fuel dragsters. Using a five-horsepower, single-cylinder engine, a Jr. Dragster can go as fast as 85 mph and as quick as 7.90 seconds...
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...nitrous oxide system. Instantaneously I was thrown back into my seat. All of a sudden a loud pop disturbed the smooth roar of my engine. Halfway down the track my engine shut off and forced me to coast the car to the finish line. My teammates were already waiting at the end of the drag strip. Unable to restart my car, we pushed it back to our pit area. My hopes were crushed as I went over the fact that my day of racing was already over. Drag racing is a big part of my life. All of my spare time is spent working on my 1996 Honda Accord. With a big import drag racing approaching quickly, I spent most of my waking hours for a week tuning my car. Sweat and hours of hard work finally prepared my car for racing. The interior was stripped down to the sheet metal and contained only the driver's seat to reduce weight. The whole exhaust system was removed to gain that little edge of power, which is essential for racing. My car was finally race ready, waiting to tear up the track. The following day, our race team met up at the track. In the pit area, we changed out our street tires for high performance drag slicks. After a few more last minute adjustments, I pulled into the staging lane and waited for my turn to race. Little did I know that my first race would end up in disaster, a blown engine. All of the hard work and dedication towards my car seemed to be a futile effort because...
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...Drag Racing 4x4 is the favorite spin-off from Drag Racing, it showcases larger and also badder 4x4 suvs as well as vehicles, from the fabulous Ford F-150 to the massive Monster Truck. You'll get amazing exhaustions as well as numerous upgrades all on your Android tool! Unlike various other automobile racing games, this is genuine vehicle burden racing on the road as well as on the track. Difficulty your competitors and also good friends online. GREAT DEALS OF TRUCKS We understand you like vehicles as well as SUV's as well as 4x4 tires, so we've consisted of the best brand names in Drag Racing 4x4. That's right; Dodge, Ford, GMC, Infiniti, Land Rover, Nissan, Range Rover, VW and also even more! Sporting activity SUVs? Inspect. Pick-up Trucks? Inspect. Beast Trucks? You wager! The very...
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...Michael Xu The first thing I considered before creating my car was the wheel size that I would use. After a bit of research, I came to the conclusion that using large back wheels and small front wheels would be most effective. I got this idea from the unique looking drag racing cars that have small front wheels and large back wheels. The reason for this is because during acceleration, the large wheels at the back can take advantage of the weight transfer during acceleration. The wheels at the front were made small due to aerodynamics. Since the small wheels at the front puts my car at a slope, air resistance will be greatly minimized. The second thing I had to consider was what type of rubber bands to use. I had access to large thin rubber bands, small thick rubbers bands and small thin rubber bands. I decided to use three small thick rubber bands tied together so that they acted like one giant rubber band. The reason I did this was because I felt that a small thick rubber band could store far more energy than a large thin rubber band or small thin rubber band if all of them were to be pulled 10 cm. If what I believed was true, then my car would make the maximum distance using the rubber bands I had. I also tied the three rubber bands together so that the energy would be increased. Three rubber bands allowed me to pull the rubber bands farther back without them snapping which also ultimately gave my car more stored energy, allowing it to travel farther and faster. The...
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...As I helped at a unique food pantry on the Southside of Milwaukee for sophomore service, a man named John expressed his appreciation for movies to me. The food pantry happens to be unique because it stands right in the middle of a major gang area. The gangs know that this food pantry is a sacred place and helps the community. Because the food pantry remains a sacred place the gang members do not participate in any gang activity near the pantry. However, when the gang members walk a few blocks away the gangs go back to selling drugs, stealing, shooting, etc. A man named John approached me after everything was cleaned up with the food pantry and he started to talk endlessly about his favorite movies and why he loved them. He explained that he can’t afford to buy many movies. When he finds a movie at the thrift store that he hasn’t seen before he becomes ecstatic. He quickly bumbles through his wallet looking for enough to purchase the movie. When he buys a new movie, he explained that he and his two boys watch the movie several nights in a row. The first night John brings home a new movie the kids would walk down to the convenience store and use the little money they could find to buy a few snacks. While the kids get the snacks, the dad moves the extra chairs into the family room. John lost his job after a machine injured him at his warehouse job, and he cannot do manual labor. He does not have a degree so he can’t find a stable job where he earns enough to easily support his...
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...and understanding how physics is applied in sports improves the athlete’s performance and develops new techniques. With the time, new experiences, new records make people search and study harder in applied physic to reach best results in sports. Newton’s laws of motion help us to understand mechanics of rowing better. In this paper, some of the physics concepts will be studied in the process of rowing. The stroke A rowing stroke has four steps; catch, drive, finish and recovery. These are the most important elements for the efficient rowing. The catch is the beginning of the stroke; when the blade meets the water a stroke starts. Starting with the first catch, boat accelerates and starts moving forward. As the boat moves forward, the drag force is going to slow down the boat. When the acceleration reaches down to zero, rower should put the blade into water again with an angle through the direction toward movement to prevent sudden break effect that the blade could create. If the rower starts the second catch early and puts the blade into water, the intended speed cannot be reached. Second step, drive, occurs while the blades are inside the water. The blades that went into water with an angle...
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...Question: “Theory: Drag for objects moving in a fluid (air is a fluid) has been determined to be D=1/2CpAv^2 where D is the drag force, C is the drag coefficient, p is the density of the fluid, and A is the surface of the body exposed to the fluid. Do your results support this relationship? Explain.” This equation does support the relationship of moving objects through a fluid, in this lab; air is the fluid being taken into account. The equation itself has many constants within it. The constants stay the same and isn’t what is varying. More or less they become less significant this would be, p, the density of air, C, the drag coefficient, due to the drag isn’t changing since the coffee filters keep their shape. Terminal velocity is when the falling object is no longer accelerating, due the balanced forces between an objects weight and its drag force. With coffee filters, one can easily add weight with out changing the objects shape since coffee filters fit nicely together. With a consistent shape, it doesn’t change the surface of the falling body, essentially A becomes another constant. With in the lab, through careful measurements and calculations the equation, shown in the graphs can be properly represented as D=1/2CpAv^2 or what the group found to be D=1/2v^2, which are both identical equations. Ratings & Evaluations Individual: I was personally “out of it” for the first couple of days of the lab. I couldn’t get started and felt zoned out and just not...
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...Communication and Navigation, Take off and Landing and some others. A question that sounds easy but in theory, it’s not simple at all, “How does a plane fly?” whether it is an Airbus, a glider and any other planes, the forces that acts on a plane are exactly the same. There are four main forces to make a plane fly and they are Lift, Weight, Thrust and Drag. The Four Forces As I mention in the introduction, the four forces are Lift, Weight, Thrust and Drag and I will be describing these forces with more details in the following passage. A plane’s weight, descending towards the ground is balanced by the lift force, which ascends upwards. This is created by a flow of air over the wings. When air travels through the wing of a plane, it is bounce off downwards and all the pressure under the wing is bring in to bounce off the air that makes an opposite force, which is ‘Up’. Drag is the air resistance of all planes as they meet the airflow, and its force acts in the opposite directions. Thrust is provided by many sources of power, such as a jet engine, or by the energy descend from being carried into the air. Thrust must always balance drag for the plane to fly. (Barnard, 2007). Communication and Navigation For many training pilots, radio communication and navigation is one of the most irritating factors of aviation. This is because it’s embarrassing to come across as awkward on the radio and it is also embarrassing if you were lost and you had to communicate even though you...
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... HUB & BLADE Faculty Advisor Easir Arafat Papon Group Members Shoyon Panday Adib Belhaj Hasan Nafiz Ahmed Khan Borhan Uddin Manam Table Of Contents Executive Summary Conceptual Design Preliminary Design Detail Design Flow Simulation Of Whole Aircraft Manufacturing Process & Plan CG Location Reference * ACRONYMS, ABBREVIATIONS, AND SYMBOLS NACA National Advisory Committee on Aeronautics | AR Aspect Ratio | Re Reynolds number | b Span | c Chord | s Wing area | t/c Thickness-to-chord ratio | MAC Mean Aerodynamic Chord | Cd0 Airfoil minimum coefficient of drag | CDi Aircraft induced drag coefficient (vortex drag) | CD0 Aircraft parasite drag coefficient | CD Aircraft drag coefficient | | CL Lift Co-efficient | * a) Executive Summary This report encompasses the design and manufacturing processes, conducted by the MILITARY INSTITUTE OF SCIENCE & TECHONOLOGY (MIST), DHAKA, where team ‘Hub & Blade’ is destined for their design report entry in the 1ST NATIONAL AERO-DESIGN COMPETITION & EXHIBITION . The theme of the competition is to design an aircraft. The goal of this competition is that the design will be in such a way that can fly with the highest advantageous materialistic body, having the lowest possible cost and weight. Team “Hub & Blade” is well on its way to bring a competitive fixed wing rc plane...
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...Hyperloop Alpha Intro The first several pages will attempt to describe the design in everyday language, keeping numbers to a minimum and avoiding formulas and jargon. I apologize in advance for my loose use of language and imperfect analogies. The second section is for those with a technical background. There are no doubt errors of various kinds and superior optimizations for elements of the system. Feedback would be most welcome – please send to hyperloop@spacex.com or hyperloop@teslamotors.com. I would like to thank my excellent compadres at both companies for their help in putting this together. Background When the California “high speed” rail was approved, I was quite disappointed, as I know many others were too. How could it be that the home of Silicon Valley and JPL – doing incredible things like indexing all the world’s knowledge and putting rovers on Mars – would build a bullet train that is both one of the most expensive per mile and one of the slowest in the world? Note, I am hedging my statement slightly by saying “one of”. The head of the California high speed rail project called me to complain that it wasn’t the very slowest bullet train nor the very most expensive per mile. The underlying motive for a statewide mass transit system is a good one. It would be great to have an alternative to flying or driving, but obviously only if it is actually better than flying or driving. The train in question would be both slower, more expensive to...
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...How Planes Stay Up In the Air I remember a picnic with Becky, my girlfriend, at Maidu Park five years ago. We lied on the lush green turf and held hands as we watched the clouds drift by. We were captivated and intrigued by the definitions in the clouds as we matched them to shapes of animals and other objects. She pointed towards a blanket of clouds on the right and said, “There! That one looks like a dragon.” Right at that moment, a plane flew right above us as it cut through clouds. She quickly sat up and followed the plane with her head. Her eyes widened and her eyebrows shot up as she burst out, “Wow! How do you think it stays up in the sky like that?” As any mischievous thirteen year old would, I simply the magic dust and invisible angels carried the plane on their backs. She laughed and called me stupid for not knowing the answer. However, now as a college student embarking towards my future, I made my personal goal to be a pilot and learn about planes. I got accepted to Embry Riddle, an aeronautical school in Arizona, straight out of high school. Although the fear of planes falling out of sky held me back; so I decided study at Sierra College until I’m ready. Sean palmer, a sophomore at Sierra College, flys planes for a hobby. He pointed out that, “Flying a plane is not like driving a car, it’s far more complicated, but at the same time fun… I fly almost every week, but it’s little expensive to rent planes. So, I’m saving up for my own Cessna 120 for almost two years...
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...dragonfly wing section as well as its comparison to a corresponding profiled airfoil and a flat plate were conducted at Re = 10,000. The main focus of the current investigation was to determine the primary flow features and mechanisms that are responsible for the enhanced performance of these biological wing sections at these relatively low Reynolds numbers. A time-accurate Cartesian grid based Navier-Stokes immersed boundary solver was utilized in the current study. The numerical results indicate that the pleated airfoil at a zero degree angle-of-attack generates the least drag despite its unconventional shape. Additionally, a higher transitory lift is produced by the pleated airfoil at a five degree angleof-attack when compared to the profiled airfoil. Nomenclature c CD CDs CDp CL CLs CLp P Re τ t t* ui = = = = = = = = = = = = = = = = chord length drag coefficient shear drag coefficient pressure drag coefficient lift coefficient shear lift coefficient pressure lift coefficient Pressure Reynolds number thickness dimensionless time time xi component of velocity free stream velocity Cartesian coordinates angle of attack U∞ xi α I. Introduction A number of insect species including locusts, dragonflies, and damselflies employ wings that are pleated along the chord. These ultra-light membranous insect wings support a variety of aerodynamic and inertial forces during...
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