CHAPTER-1 INTRODUCTION 1.1 Introduction :- A hovercraft is a vehicle capable of traveling over most surfaces on a cushion of air trapped under the body for lift. Air propellers, water propellers, or water jets usually provide forward propulsion. Air-cushion vehicles can attain higher speeds than can either ships or most land vehicles due to lower frictional forces and use much less power than helicopters of the same weight. Figure illustrates the operational principles and basic components of a typical hovercraft. Fig 1.1 Components of Hovercraft An air cushion vehicle (air-pad vehicle, ACV) is a specialty equipped for going over area, water, mud or ice and different surfaces both at rate and when stationary. They work by making …show more content…
2.1 Working Principle of Hovercraft 2.2 Movement of hovercraft :- After the crane lifter can push ahead. It must give a different air administrator, which takes an air cushion vehicle. A considerable lot of the vessels used to move a different motor, however some have stand out motor for both capacities - that is, for blowing air under the air cushion vehicle furthermore to make headway. For this situation, the wind current part propeller, which to some extent drives the flyer for floatability, while lion's share of the air is utilized to move the air cushion vehicle . 2.3 Components of Hovercraft :- The hovercraft is the most significant component of the project. The design of this component is documented in the remaining sections of this report. 2.3.1 Remote Station :- The hovercraft itself has a remote station attached to it. The final design used three Arduino boards communicating with I2C. The remote station looks after receiving wireless packets from the base station, sending wireless debug messages to the base station, reading sensors, and autonomous control. 2.3.2 Base Station :- In phase one a base station was attached to a PC with a usb cable and designed to accept user input from the keyboard and a PS2 controller. We wanted a portable base station and an opportunity of experiment with more sensors so we replace the attached base station with two new
Ever since I was little I was amazed at the ability for a machine to fly. I have always wanted to explore ideas of flight and be able to actually fly. I think I may have found my childhood fantasy in the world of aeronautical engineering. The object of my paper is to give me more insight on my future career as an aeronautical engineer. This paper was also to give me ideas of the physics of flight and be to apply those physics of flight to compete in a high school competition.
Dated back as far as 1866, the idea of an “Air Ambulance” has been on the minds of certain individuals across the world. Paris, France first used the hot air balloons in order to evacuate more than 160 soldiers from the besieged city to medical care facilities.3 In the beginning, using a hot air balloon to rescue shipwrecked sailors seemed logical since the balloons where already delivering mail and supplies across the area of operations. This action dire...
By the second week we had had a few complications with the server, which led to us not being able to attain all our sprint goals for the week, thus did not have anything to demo and came to the realization that we might need an alternate solution. By this period, we also had difficulties starting out with developing our ACC since no data could be obtained from the sensor and we were suggested to continue our development and in the need of data, send fake data until further notice.
Over 60 years ago, airships were the "queens of the skies." In the early 1900s, a stubborn, yet brilliant German count, Count Ferdinand von Zeppelin, took keen interest in balloon flights and was devoted to the design and construction of airships. At first, he had many difficulties and setbacks but soon his airships were able to accommodate passengers as well. This lighter-than-air vehicle will later be known as a zeppelin.
In the 1930s airships, better known today as “blimps”, were the main source of air travel. During this time, the airships were used for various different reasons such as: bombing enemy targets, patrolling coastal areas, escorting naval ships during the night or through unsafe bodies of water, or used to make luxury flights across the Atlantic. The Hindenburg was believed to be the biggest and most sophisticated aircraft ever built.
The Air Force military-transport plane is also used to move troops into the war zones perform the medical evacuations and also conduct the airdrop missions. There are some 190 C17As in the service; the aircraft is also propelled by the four turbofan ...
First of all you will have to understand the principles of flight. An airplane flies because air moving over and under its surfaces, particularly its wings, travels at different velocities, producing a difference in air pressure, low above the wing and high below it. The low pressure exerts a pulling influence, and the high pressure a pushing influence. The lifting force, usually called lift, depends on the shape, area, and tilt of the wing, and on the speed of the aircraft. The shape of the wing causes the air streaming above and below the wing to travel at different velocities. The greater distance over which the air must travel above the curved upper surface forces that air to move faster to keep pace with the air moving along the flat lower surface. According to Bernoulli’s principle, it is this difference in air velocity that produces the difference in air pressure.
However, in war use the problem was mounting it avoiding the propeller blades. It was solved by the introduction of the interrupter gear. In those days, once the plane took to the skies, there was no contact with land. Flags and lamp signals had to suffice. Radio use solved this problem.
For a plane to create lift, its wings must create low pressure on top and high pressure on the bottom. However, at the tips of the wings, the high pressure pushes and the low pressure pulls air onto the top of the wing, reducing lift and creating a current flowing to the top. This current remains even after the wing has left the area, producing really awesome vortices.
...l hole in the fenders, tripping poles that swing out from the revive of the upper fenders or beltline, and from beneath the sides of the car, bat wing-like fans spread open. Multiple parts of the siding of the batmobile pop and slide out. A set of wheels on both sides of the car pop out from the engine to support the weight of the car. The original batmobile exterior was made of massive amount of plumbing, vents, outlet sand fans throughout occasional lights inset liberally going on and off. The lights are both bulbs and thin neon like strips. Beneath the vents are four sections that smoothly slide up. They are made up of a mixture of pipe plumbing with solid state circuitry and multi size CRT screens throughout, with plug ports, pull handles and switches. The batmobile has always changed to stay up to date with time and has always been advanced in technology.
Wings create lift for the upward force of an airplane. A great example of how this happens is sticking your hand out of a car window driving down the freeway. The force on your flat palm causes a force that can lift your hand up or down by changing the
Up, Up and Away! So your paper airplane takes to the air and glides gentely to the ground but you still don't understand how it is able to glide. Your paper airplane uses lift to carry it through the air and to its landing area. Now you are interested and want to know how lift works. The lift for your paper airplane doesn't work quite the same as a real airplane but understanding how an airplane maintains lift is useful. Now something important to remember is that lift can only happen when in the pressense of a moving fluid and that air has fluid properties.
Drones are called UAVs, also known as unmanned aerial vehicles. They are new aircrafts that do not need a human operator onboard to operate the aircraft. The human operators are on the ground, usually in a military base, along with the entire unmanned aircraft system: the aircraft, personnel and digital network (Thompson).
Taylor, John, W.R. (1977). Jane's pocket book of remotely piloted vehicles: Robot aircraft today. New York: Collier Books.
Bosnor, Kevin. "How Flying Cars Will Work." Howstuffworks. How Stuff Works Inc., 1998. Web. 24 Jan.