Premium Essay

Propeller Design Research Paper

Submitted By
Words 612
Pages 3
If you are looking forward to purchasing outboard propellers, there are few things that you must know. You will be able to select the suitable propeller, only when you understand the basics of propellers. The job of an outboard propeller is to convert the horsepower generated by the engines into thrust or in simple words convert power into forward motion. A good propeller will ensure top speed and better load carrying capacity. Today you can purchase your outboard propeller online. There will also be a wide number of choices of propellers available on the internet. You can buy and have it delivered at your home at discount rates.

Before you buy a propeller, it is very important to get accustomed with the terms associated with boat propellers. Terms such as pitch, diameter, cupping, slip, blade thickness, cavitation, ventilation and rake should be properly known about. You should also pay a lot of attention to the material of the propeller you choose. Aluminium is the best known material for outboard propellers. They are extremely durable. A stainless steel propeller will also be a good option. It will guarantee longer life of the boat propeller. The hydrodynamic efficiency in case of stainless steel propellers is also more. …show more content…
The one you purchase should be of high quality and should require low maintenance. After you have received the product; look for any nicks. See if the tips are rolled or the blades are bent. Faulty propellers will damage your engine. Of course, the way you maintain your boat is also an important factor. Always purchase from a website that provides you with a complete replacement of faulty products. You need to conduct a few tests before using a propeller in your boat. The RPM needs to be measured with an accurate tachometer. The maximum RPM should not be exceeded. It decreases the power of the engine. Each test should be conducted with accurate

Similar Documents

Free Essay

The History of the Fighter Plane

...Valerie Thorburn 10/11/2014 ENG-1060 Research Paper #1 The History of the Fighter Plane You are traveling at a speed of 4000 miles an hour; your heart is in your mouth, your face ashen white, you feel as if there is a 100 pound weight on you pressing you into your seat. You are a fighter pilot and this is your first flight. There are many other pilots around you. In the world there are many pilots that fight and put their life on the line for others. They are well trained and well educated. They are to be respected for what they do. The fighter plane and pilots have come a long way since they were first seen in the air of France. The changes are mainly because of the new technology. The first aviation fighter pilots were used in World War 1.They flew very slow but stable planes. It was the Idea of a Frenchman named Roland Garros to strap a machine gun to the nose of the plane. He soon realized that there was a problem, the stream of bullets were wrecking the blade. Roland Garros then had an idea he took steel armor plates and welded them to the lower portion of the blades to deflect any bullets that might hit the blade, this idea worked but it was crude. He took his idea into combat and was able to down four planes. Before Roland Garros idea the pilots normally would use rifles and pistols to bring down a plane (3). When he was fighting later he was trapped behind enemy lines and forced down. The Germans found out his secret and...

Words: 1188 - Pages: 5

Free Essay

Uss Akron

...270 Instructor R. Xavier Koon Embry-Riddle Aeronautical University Extended Campus Patuxent River Resident Center September 27, 2011 TABLE OF CONTENTS Page LIST OF FIGURES iii Chapter I INTRODUCTION 1 II HISTORY OF EARLY FLIGHT 2 III HISTORY OF HOT-AIR BALLOONS 3 IV HISTORY OF THE ZEPPELIN 4 V USS AKRON DESIGN AND CONSTRUCTION 5 VI USS AKRON MISSIONS 6 VII SUMMARY 8 VIII CONCLUSION 9 APPENDICES A BIBLIOGRAPHY 12 LIST OF FIGURES Figure Page 1 Ormithopter Flying Machine 2 2 Montgolfier Brother’s 1783 hot-air balloon 3 3 dirigible 4 4 First ring of the uss akron 6 5 USS AKRON DESIGN PLANS 7 6 USS AKRON 8 7 LONG ENDURANCE MULTI-INTELLIGENCE VEHICLE 9 CHAPTER 1: INTRODUCTION The idea of flight has intrigued man for many years. For centuries, man experimented with ways of how to fly; some ideas of how to fly were good, while other ideas were not so good. Early pioneers of flight would construct wings out of feathers, wood and wax and attach them to their arms and jump off of high structures. These experiments usually ended in injury or...

Words: 2599 - Pages: 11

Free Essay

Enhancing Efl College Students' Speed Reading and Content Comprehension of Computerized Texts

...Enhancing EFL College Students' Speed Reading and Content Comprehension of Computerized Texts ‫ Osama Hassanein Sayed, PhD Community College in Bisha, King Khalid University, KSA, Faculty of Education in the New Valley, Assiut University, Egypt (2009) Paper puplished in CDELT Occasional Papers, Vol. 50, August, 2009. Abstract This study attempted to investigate the effect of training EFL college students in reading computerized texts on their reading speed and content comprehension. The study had a pre-post control group design. Thirty EFL students at the community college in Bisha, king Khalid university, Saudi Arabia, participated in this study. An online speed reading test was used to measure students' speed reading rate and content comprehension. Experimentation lasted eight weeks; three 50-minute sessions per week. A “t” test for small samples was used to analyze the difference between means of scores of the study subjects in the pre-post-measurements. Findings revealed a significant improvement in the experimental group students' speed reading rates and their reading comprehension of computerized texts. Introduction: With the explosion of information we live in nowadays, with the growing emphasis and on the importance concepts of information as and communication with such globalization,informatization, and intercultural communication, strong reading skills, as Kasper (2003) states, are essential not only for students' academic success, but also for their social...

Words: 6851 - Pages: 28

Premium Essay

Airframe

...Powai, Mumbai – 400076 e-mail: arya@aero.iitb.ac.in Abstract: Airframe design is an important step in the development of mini aerial vehicles. Airframe design means the shape and size of the aircraft. Issues related to mini aerial vehicle design are discussed in the paper. In this paper a case study of design of a 0.6 m fixed wing aerial vehicle is presented. This case study also brings out the requirement of various tools to conduct such an exercise. Introduction: Significant interest is being shown by academic institutions in research activities related to Remotely Piloted Vehicles (RPV’s) and Unmanned Aerial Vehicles (UAV’s). Flying platforms and their design with suitable payloads reinforce classroom education while exposing students to a host of flight related problems and issues of systems integration. There has been a long felt need to bring students, especially in the field of engineering, closer to the complexities and risks in dealing with actual systems. The Department of Aerospace Engineering, IIT Bombay has decided to make headway in this direction by developing remotely piloted aerial vehicles as experimental platforms[1]. The various disciplines required for such a design activity are aerodynamics, performance, structures, stability, control and propulsion. Each of these designs are different compared to conventional aircraft. Scalability cannot be applied directly and it opened up new research areas. Low speed aerodynamics, new construction methodologies, efficient...

Words: 4590 - Pages: 19

Premium Essay

Lean Management in Automobile Industry

...Lean Management In Automobile Industry Lean Management In Automobile Industry Arvinder Singh, Bargavi Poloju, Inderpreet Kaur, Inderjeet Kaur, Jaskaran Singh Gill Eastern Institute of Technology September 10, 2015 Abstract Lean and six sigma are widely known business improvement processes for industries /organisations these days for achieving drastic results, which are majorly cost cutting, quality maintenance and time management by specializing in processes to boost performance. Nowadays, There are some industries that are even integrating lean and six sigma into a more cohesive strategy i.e., lean sigma in order to establish even more powerful and effective process which focuses at eliminating wasteful activities and retaining most of the strengths of each activity. Lean Sigma aims to combine waste eliminating strategies of Lean Thinking with variability reducing techniques of six sigma to promote growth and increase revenue from the bottom line of organisations(M. Kumara). Lean management is outlined as a consistent and a methodical approach to determining and eliminating waste through continuous improvement, flowing the merchandise at the pull of the client in pursuit of perfection. The idea of lean management was developed for maximizing the resource utilization through reduction of waste, and eventually lean was developed in response to the unsteady and ever-competitive business organisations. For organisations to face major challenges and competition can be...

Words: 4468 - Pages: 18

Premium Essay

Bmw Ag; Financial Performance Analysis

...BMW AG; Financial Performance Analysis This paper is prepared by: Asif Ahmed BBA 13th Batch Department of Accounting & Information Systems Faculty of Business Studies University of Dhaka, Bangladesh E-mail; asif.ahmed0001@yahoo.com Cell Phone; +8801922939126 BMW AG; Financial Performance Analysis (Asif Ahmed) 1 of 24 Executive Summary: The world is just recovering from a big recessio n. Various big corporations became bankrupt because of this. Many of the automaker giant posted loss during the last 2 or three years, like – Toyota and the biggest corporation of the world General Electric (GE) became bankrupt. More or less all the big corporations are affected by it. BMW, one of the automaker giant, could retain its’ profitability over last three years when the global recession take place. It also affected by the recession but cannot lose the profitability. This interesting thing inspires me to conduct research on the financial performance of BMW AG. In the beginning of my paper I give an overview on the BMW. Later I analyze the net profit, sales revenue, costs and assets base of the corporation for the last 10 years. Then I go for ratio analysis to judge the financial health of the organization. In ratio analysis I use Return of Assets (ROA), Return on Equity (ROE), Basic Earning Power (BEP), Liquidity ratio, Profitability Ratio, Divided Payout (DP) Ratio and Du Pont Chart to conduct my analysis. The findings on the analysis are discussed along...

Words: 4944 - Pages: 20

Free Essay

An Assessment of the Terrafugia Flying Car: Its Problems, Possibilities and Prospects

...December 2013 Acknowledgements This extended essay would not have been made possible without the help of Mr. Edward Jay M. Quinto, who was our guide and inspiration in the making of this paper; the researchers family and friends, who have supported the researchers in their time of need; Mr. Sherwin Magon, who provided us with invaluable information regarding the Transition; the Directory of Open Access Journals, who gave the researchers references to complete the research paper; and the almighty father, who gave the researchers strength to battle through the tough times the researchers encountered during the process of creating this research paper “Cultivate the habit of being grateful for every good thing that comes to you, and to give thanks continuously. And because all things have contributed to your advancement, you should include all things in your gratitude.” ― Ralph Waldo Emerson D.N.C.F J.C.M.F A.R.O.G Abstract Today, Transportation has become one of our daily needs. With the introduction of Terrafugia’s flying car: the Transition, this necessity would become less of a problem in our day-to-day lives. This research aimed to discover the problems, prospects and possibilities that the Transition will bring. The researchers used a qualitative method of research using library research. The researchers also Interviewed Engr. Sherwin Magon to have a broader understanding on the concept of flying cars. the Transition is a light sport aircraft approved by the National...

Words: 3828 - Pages: 16

Free Essay

Plane

...The Wright Brothers Invent the Airplane About one hundred years ago the planet earth was a much smaller place. On December 17, 1903 the Wright brothers, Wilbur and Orville, made history when they took off in flight and invented the first airplane. This is how the planet earth began shrinking geographically making it easier and quicker to travel over long distances. Wilbur was the older of the two brothers by four years. Wilbur was born in 1867 on a farm near Millville, Indiana and Orville was born in 1871 near Dayton, Indiana. As youngsters, Wilbur and Orville looked to their mother for mechanical expertise and their father for intellectual challenge. Milton, their father, brought them various souvenirs and trinkets he found during his travels for the church. One such trinket, a toy helicopter-like top, sparked the boys' interest in flying. In school, Wilbur excelled, and would have graduated from high school if his family had not moved during his senior year. A skating accident and his mother's illness and subsequent death kept him from attending college. Orville was an average student, known for his mischievous behavior. He quit school before his senior year to start a printing business. The two brothers were very intellectual and smart, but both did not ever get their high school diplomas. It just goes to show that even two of the best minds in our history didn’t have to go to college or even finish high school to become these great minds. The first time Wilbur and...

Words: 2223 - Pages: 9

Premium Essay

Management

...SHIP PRODUCTION COMMITTEE FACILITIES AND ENVIRONMENTAL EFFECTS SURFACE PREPARATION AND COATINGS DESIGN/PRODUCTION INTEGRATION HUMAN RESOURCE INNOVATION MARINE INDUSTRY STANDARDS WELDING INDUSTRIAL ENGINEERING EDUCATION AND TRAINING April 1997 NSRP 0532 THE NATIONAL SHIPBUILDING RESEARCH PROGRAM 1997 Ship Production Symposium Paper No. 16: Towards a Generic Product-Oriented Work Breakdown Structure For Shipbuilding U.S. DEPARTMENT OF THE NAVY CARDEROCK DIVISION, NAVAL SURFACE WARFARE CENTER Report Documentation Page Form Approved OMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 1. REPORT DATE 2. REPORT TYPE 3. DATES COVERED APR 1997 4. TITLE AND SUBTITLE N/A 5a...

Words: 5535 - Pages: 23

Free Essay

Aaronpogi

...Writing a journal article review You may be asked to write a journal article review. Although this may be an unfamiliar exercise, it is not as complex a task as writing an essay requiring a lot of library research, and not the same as a review in The Canberra Times which is written for the general reader. Your journal article review is written for a reader (eg, your supervisor, lecturer or tutor) who is knowledgeable in the discipline and is interested not just in the coverage and content of the article being reviewed, but also in your critical assessment of the ideas and argument that are being presented by the author. Your review might therefore be guided by the following questions: Objectives | What does the article set out to do? | Theory | Is there an explicit theoretical framework? If not, are there important theoretical assumptions? | Concepts | What are the central concepts? Are they clearly defined? | Argument | What is the central argument? Are there specific hypotheses? | Method | What methods are employed to test these? | Evidence | Is evidence provided? How adequate is it? | Values | Are value positions clear or are they implicit? | Literature | How does the work fit into the wider literature? | Contribution | How well does the work advance our knowledge of the subject? | Style | How clear is the author's language/style/expression? | Conclusion | A brief overall assessment. | | | | | This image shows a close-up view of the next-generation...

Words: 1714 - Pages: 7

Free Essay

Living on Another Planet

...COMPUTER-AIDED DESIGN (CAD) AND COMPUTER-AIDED MANUFACTURING (CAM) Photo by: higyou Computer-aided design (CAD) and computer-aided manufacturing (CAM) are a pair of often interdependent industrial computer applications that have greatly influenced the chain of processes between the initial design and the final realization of a product. Many would add to this duo a third technology, computer-aided engineering (CAE). Ongoing refinements in CAD/CAM systems continue to save manufacturers tens of millions of dollars in time and resources over non-computerized methods. As a consequence, CAD and CAM technologies are responsible for massive gains in both productivity and quality, particularly since the 1980s. For some purposes CAD and CAM methods can be used exclusively of one another, and in general, CAD is used more commonly than CAM. CAD involves creating computer models defined by geometrical parameters. These models typically appear on a computer monitor as a three-dimensional representation of a part or a system of parts, which can be readily altered by changing relevant parameters. CAD systems enable designers to view objects under a wide variety of representations and to test these objects by simulating real-world conditions. CAM picks up where CAD leaves off by using geometrical design data to control automated machinery. CAM systems are associated with computer numerical control (CNC) or direct numerical control (DNC) systems. These systems differ from older forms...

Words: 2560 - Pages: 11

Premium Essay

Stock Analysis: Boeing Company

...(949) 719 2955 FI560 Securities Analysis Miriam Benard June 08, 2011 Abstract The purpose of this paper is to make buy or sell recommendation for the Boeing Company’s stock based on the technical analysis and fundamental analysis. The technical analysis consists of analysis of return on equity; the company’s projected future growth of earnings; an analysis of its required rate of return using the CAPM measurement; and the company’s intrinsic value using the discount valuation technique. The fundamental analysis consists of describing the competitive forces in the industry including the company’s relative advantages and disadvantages to its competitors and a discussion on ROE as the basis for growth. Based on the technical analysis, we find that Boeing’s stock is overpriced. Its intrinsic value is $13.39 in 2011, which is substantially less than its current price. But, our fundamental analysis shows that Boeing Company has not only greater earnings growth but also little more ability to grow than its competitor Lockheed Marin Corporation. The Boeing Company also has strong prospect for earnings growth in coming years. Based on the technical and fundamental analysis, we recommend hold. Background Boeing is the world’s leading aerospace company and the largest manufacturer of commercial jetliners and military aircraft combined. Additionally, Boeing designs and manufactures rotorcraft, electronic and defense systems, missiles, satellites, launch vehicles and advanced...

Words: 2247 - Pages: 9

Free Essay

Pioneers of Aviation

...these pioneers. Pioneers of Aviation Introduction From the very first flight of the balloon to the flight of the powered airplane, our early pioneers always looked to make changes for the better. Many of these ideas simply built upon ideas of individuals of the past. These great pioneers were from every part of the world, United States, England, France, Germany, and so many other places. They did not look at aviation as a reason to disagree but rather found that flight would help everyone equally. Balloons Joseph and Jacques Montgolfier are the brothers who invented and flew the first hot air balloon. Born in Annonay, France, they had a passion and drive in science. In 1782 they constructed a balloon that was filled by burning paper to heat the air and lift the balloon off the ground (Montgolfier, 2011). This first flight wasn’t until 1783 when Pilatre de Rozier and Marquis d’Arlandes went 7.5 miles in less than a half hour at a height of 3,000 feet (Montgolfier, 2011). This marked the first balloon flight as well...

Words: 2570 - Pages: 11

Premium Essay

Defining Amazon

...Defining Amazon’s Competitive Edge in Today’s Marketplace Introduction to Supply Chain Management University of Memphis Abstract This paper illustrates the ultimate market power that Amazon now has that was once shared by larger corporations. In the recent weeks, Amazon topped their leading competitor, Wal-Mart, in earnings per share. Amazon had been a market leader in their supply chain strategy by analyzing their customer’s orders to show demand, excellent customer service, and individualized product offerings (Muha, 2014). During their holiday season, they bid with the larger capacity 3PL transportation carriers to pay up to three times their normal rate to pick up their freight and deliver on time. Amazon has also sparked an awful lot of controversy over their “Amazon Prime Air” project which is nothing more than a drone dropping a small package at a customer’s door. While this project is still under much scrutiny, Amazon is still testing and moving forward with it. Defining Amazon’s Competitive Edge in Today’s Marketplace Amazon got their start in 1994 as an online book retailer and did not begin to publically trade until 1997. So how did such a small company become one of the world’s largest retailers with such little capital? Prior to doing this research, and I am still partially correct, I thought Amazon took full advantage of the technology boom of the late 1990’s and just grew based on demand. In 1998 they started their music store and in 2000 they...

Words: 1831 - Pages: 8

Premium Essay

Organization Beahvior

...Sundstrand is a global corporation that designs, manufactures and supports aerospace and industrial products for worldwide markets. It is a subsidiary of United Technologies Corporation headquartered in Windsor Locks, Connecticut, US. UTC provides a broad range of high-technology products and support services to the building systems and aerospace industries. Recently, the corporation has been ranked number one in the Aerospace and Defense industry rankings on Forbes Most admired companies list. Among other business units of UTC are Carrier Corporation, Otis Elevator Company, Pratt & Whitney, Sikorsky Aircraft, UTC Fire & Security and UTC Power. Hamilton Sundstrand roots all the way back to 1905. From the early days, the company's legacy product includes machine tools for manufacturing, early aircrafts parts and a unique 10-key adding machine before calculator was available. The company provided propellers for United States and the allies in World War II with rapid production to meet the department of defense needs. The company has about 16, 400 employees located at 150 facilities in 20 countries around the world with key focus on expanding their operation in emerging nations. To maintain their comparative and absolute advantage in vast aerospace technological field the company spends nearly $1 billion a year on engineering and development. The company’s revenues reached $5.6 billion in 2009. Major facilities of the power systems design are in Rockford, IL and in San Diego...

Words: 2566 - Pages: 11