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
Bolkcom, Christopher. "V-22 Osprey Tilt-Rotor Aircraft Congressional Research Service Report for Congress." Foreign Affairs, Defense, and Trade Division Congressional Research Service, The Library of Congress. N.p., 7 Jan. 2005. Web. 16 Mar. 2014.
...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.
The airmobility concept is one of Army Aviation’s most prominent battlefield innovations, almost single handedly shaping the Vietnam War and in many ways, helping to influence how we fight wars today. In its essence, airmobility is a concept that utilizes Army aircraft in order to enhance the ground forces’ ability to perform the five fundamentals of combat: command and control, firepower, intelligence, mobility, and communications (Rottman, 2007). At the zenith of the airmobility concept is the airmobile assault or commonly known today as, the air assault. The airmobile assault was more than just moving troops from point A to point B; it involved intense planning and preparation. When implemented correctly, the airmobile assault provided light infantry greater mobility on the battlefield, along with the ability to seize the initiative and to synchronize attacks.
With the development of the integrated circuit in the late 1950’s, ride designers were opened to a multitude of new c...
four wheelers. It is also called a quad or ATV. An ATV is built to go
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.
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.
Creative engineers can take advantage of the ground effect and create craft called Ekranoplans. These were gigantic boat planes built by the Soviet Union during the Cold War to transport large amounts of material quickly. These planes could only fly in the ground effect (over water, ice, or flat ground) but were very efficient.
Ever wondered how roller coasters work? It’s not with an engine! Roller coasters rely on a motorized chain and a series of phenomena to keep them going. Phenomena are situations or facts that have been observed and proven to exist. A few types of phenomena that help rollercoasters are gravity, kinetic and potential energy, and inertia. Gravity pulls roller coasters along the track as they’re going downhill. Potential and kinetic energy help rollercoasters to ascend hills and gain enough momentum to descend them and finish the track. Inertia keeps passengers pressed towards the outside of a loop-the-loop and in their seat. Gravity, potential and kinetic energy, and inertia are three types of phenomena that can be observed by watching roller
To safely hover taxi an MV22 Osprey, we will need at least two people to marshal the aircraft. One person will marshal, and the other will stand behind them and brace them from the rotor arch.
Flight is one of the most important achievements of mankind. We owe this achievement to the invention of the airfoil and understanding the physics that allow it to lift enormous weights into the sky.
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
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.
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).
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.