Going into these trying times of the thought of war and tactics, many people think about how in the world a 28,000-pound helicopter lifts off of the ground. People have said that lifting this size of an object would be impossible with just four rotary blades, an engine, and a drive-train system, but it happens every day.
Lifting a helicopter off the ground involves, of course, the engine. The role it plays is to produce the power to turn the rotor blades, drive-train system, and tail rotor blades. It is kind of like the engine of a car. If it weren't for the engine there would be no movement of the car. As with a helicopter, without an engine, there would be no movement off the ground.
The drive train also works much like the transmission of a car. It receives power from the engine to turn the rotor blades. It acts as a catalyst for these blades. Shafts and gears are also included in the drive train process. They direct the power from the engine to the rotor blades. This is the way that the rotor blades begin to move and eventually make the aircraft take off. .
Rotor blades are the main source of this process. Made up of only honeycomb and titanium, these 175,000-dollar pieces are what produce the lift to get this massive creation off of the ground. These blades must be cut and angled to the exact degree. If there is one flaw in this design, then the blades could explode. To get a good picture of how the helicopter rises off of the ground, think of a ceiling fan. The air is sucked through one side of the fan, much like the air is sucked through the blades of the helicopter. As the wind is moving toward the ground, it causes the lift of the aircraft. As long as air is circulating over and under the blades, then the helicopter will stay in the air. As the blades begin to move slower and the circulation slows down, the aircraft begins to land, and the process starts to reverse.
In conclusion, a helicopter is a very complex machine.
Brothers Louis and Jacques Breget rose some two inches off the ground in their helicopter model. ... Airports for helicopters are called heliports. ... If the area is too small for a landing, the man can climb a rope ladder to the hovering helicopter, or he can be lifted with a winch, cable and basket. ... Nay helicopters are employed in this work. ... Special helicopters have also been designed for the lifting of heavy equipment. ...
How do Planes and Helicopters Fly? How do planes and helicopters fly? ... In summary, when an object is flying straight and level, lift works upward and is opposed by weight, which pulls the object toward the ground. ... There are three things that effect how much lift is created. ... If you increase the speed at which helicopters rotors are turning, more lift will be created. ...
Helicopter Harry explains how Da Vinci studied animals and insects like the dragonfly, birds and pterodactyls, to fashion his first helicopter. ... The story progresses into today's training helicopters, life flight, military, fire-fighting, and heavy lift helicopters. With the use of special effects, animals dissolve into helicopters, which will give children more of an idea how they evolved into today's mighty machines. ... Will the video make money, how soon, and how much? ... Once your financing is in place, you can then break ground....
The decline in military technology and effectiveness of firearms throughout the film showcases how war is a test of strategy and knowledge as much as an arms race. ... The powerful music and constant helicopter noise makes the scene very dramatic and authoritative. ... Kilgore play the music from his helicopter, rather than simply as soundtrack to the film. ... As the fog and smoke begins to lift, the boat is blasted with wooden arrows fired from soldiers hidden amongst the Cambodian Jungle. ... As Chief collapses to the ground, Willard has a blank stare on his face as almost to convey that h...
We learned how to defend ourselves from special attacks, how to fire while blinded by a flash grenade, and how to silently take out guards. ... The helicopter picked us up and we were on our way. ... The helicopter hovered about the ground as we jumped out. ... We stood our ground, side by side we shot down any enemy that came within sight of us. ... Coop lifted me up unto ...
There were nine helicopters in the first lift-off. ... Thompson piloted one of the helicopters. ... Then he noticed what was happening on the ground below, realizing that all that lay beneath him were Vietnamese civilians and no sign of enemy force. ... There was a lot of bragging going on about how many "gooks" (a derogatory term for a Vietnamese citizen) they shot that day. Some of the troops had made bets on how many people they would kill that day, and were trying to decide who had won. ...
But how did these aircrafts come to be, and how have they helped America become what it is today? ... Cayley abandoned the ornithopter tradition, in which both lift and thrust are provided by the wings, and designed airplanes with rigid wings to provide lift, and with separate propelling devices to provide thrust. ... However, the flight was not sustained, and the airplane brushed the ground over a distance of 160 ft. ... Land and sea forces could be supported by aerial observation of the enemy and in informing ground forces about the movements of the enemy. ... A mere handful of people ...
The preparation of the operation took two and a half months and it involved a massive air- and sea lift. ... General Norman Schwarzkopf, pursued a strategy beginning with five weeks of intensive air attacks and ending with a ground assault. ...
The helicopter would drop them far away from their objective so that it would not alert the Viet Cong that they were there. ... When battle came, we were so scared the drip of sweat off your forehead hitting the ground sounded like a gunshot. ... The best thing my dad remembers about the war is how beautiful Vietnam was. ... The worst thing my dad remembers is how the Vietnamese treated each other. ... When we finally reached it there were Vietnamese bodies, all over the ground, some obviously tortured before death. ...
