The Development Of Blackhawk Helicopter

The year was 1972. The year when the USAF had learn their lessons in the Vietnam War. This year gave the need to replace Bell?s Huey series and produce more reliable and versatile helicopter. And so, the US Army commissioned the Sikorsky and Boeing-Vertol to produce and initially test 3 prototypes helicopters that were robust, simple, and within the requirements of the UTTAS or the Utility Tactical Transport Aircraft System.

The Skorsky helicopters were named YUH-60A while the Boeing-Vertol helicopters were named YUH-61A. Years later, both companies went head to head. Sikorsky?s YUH-60A was declared the winner. Sikorsky was immediately contracted to produce the first 15 units of UH-60A Blackhawks.

Since the Army created the specifications of the helicopter, the general appearance was literally made within the requirements set by the Army- the one that is stated to fit as a UTTAS helicopter.
One of the conditions is that the Blackhawk helicopter should fit and can be air-lifted in the cargo bay of the C-130 Hercules. Thus, the Blackhawk was characterized by a long, downward-sloping tail with a mobile stabilizer, four-bladed anti-torque rotor and sharply-swept vertical tail. This was designed produce more lift.

In 1979, the first Blackhawks were delivered to the US Army. After the initial production, Sikorsky became the sole producer of the Blackhawks. And in 1988, the company had produced almost 1000 units to the Army that served several purposes such as special warfare-support roles, aeromedical evacuation, and utility transport.

In response to the good reputation of the Blackhawks, the Army had ordered Sikorsky to produce 2 Blackhawk variants: the EH-60A and EH-60B. These are the 2 electronic warfare Blackhawk helicopters.

The EH became a more high-tech Blackhawk helicopter during the 80s.

Blackhawk helicopters are made for war. YUH-60A was designed to sustain heavy fire with a variety of structural features. The strong but flexible body protects both the passengers and the crew under hostile firing. The self-sealing fuel tanks, together with the armored cabin and the strong main rotor blades that can sustain hits of up to 23mm anti-air keep the Blackhawk maintain its flight. The wheeled landing gears are designed to sustain and absorb heavy landing and vertical impacts.

Over the years, the Blackhawks are tested at wars and are produced into several variants. Today, the Blackhawks are used in more than 25 countries around the world with different purposes such as peacekeeping, combat assault, drug interdiction, border patrol, medical evacuation, and disaster relief.

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The Early Years In The Helicopter History

History tells us that the first concept of man trying to defy gravity and actually fly was through a helicopter flight. Accounts date way back 400 BC in ancient China with a hand-spun toy made from a stick and feather that flew when rapidly spun between palms to generate enough lift and then released.

However, the very first, more realistic concept of a helicopter dates in the 15th century when Leonardo Da Vinci attempted to produce a working helicopter (gyroscope). This was not made into production since his sketch was noted to be way ahead of his time and the period had inadequate technology and understanding about the nature of lift and the availability of a machine that could create such massive lift.

Several other attempts had been made over the next centuries. All these had failed but had contributed little advancements on the development of the helicopter. The reason of failure? Same as that of Da Vinci?s time. From the time of Da Vinci up to the end of the 19th century, there was no adequate machine that is powerful enough to generate power and create lift.

The breakthrough came when the internal combustion engine was invented that made full-size prototype production a possibility. But then, problems after problems occurred. With a little understanding on the concept of torque and balance, all the initial attempts failed. Models tend to flip over. Others cannot be controlled in mid-air. Many would not even get off from the ground.

The break came in 1907 when Paul Cornu, a French pioneer created a twin-rotor helicopter that lifted off the ground for few seconds. That event was followed by other successful tests but not until 1924 when another French by the name Etienne Oehmichen made a historic helicopter flight that lasted for 7 minutes and 40 seconds.

Others came to follow these two Frenchmen. Boris Yuriev and Geogrij de Bothezat (Russian), Ellehammer (Dutch), Louis Brennan (Briton), Pescara ( Argentina ), Etienne Oehmichen ( French), D'Ascanio (Italian), and Juan de la Cierva (Spanish) are among other pioneers who came up with their own version of helicopter. In 1936, with the German Focke-Wulf Fw 61 introduction, the concept of vertical flight became a reality. This was hailed as the very first practical helicopter that rose as high as 11,243 feet and as far as 143 miles.

The long dream of man to fly became a reality.
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The Helicopter Game

Have you tried the helicopter game lately?

If you are bored with the same old game you usually play over the more popular gaming sites, then why not try the helicopter game? If you are looking for something new, then the helicopter game must be for you.

So what?s with the helicopter game?

First things first? do not expect great graphics for you will not see one. You will not see rockets and missiles shooting off the Blackhawk or Comanche because you are neither playing with such helicopters. You will not carry heavy artilleries during the game. You will not have any mission to take or save people for terrorists in the most remote places on earth. And you will not even have to worry about the controls for the missiles, the take off, and the maneuvers for you will never going to need it.

What you will get is a simple 2-D graphic interface taking you back 2 decades ago? Getting the picture? If not try to imagine the legendary Pacman. Yah, yah? no monsters here but the graphic is relatively the same (if not exactly the same).

The helicopter game is a simple flash game with a simple mission: to get as many points as you could while avoiding walls and trying not to hit the upper and the lower borders or the tunnel-like terrain. You fly with a 2-centimeter helicopter (that comes wit a blue rotor, I wonder what is its model) that goes up and down with a click of the mouse. Anyway, the smoke on the tail of the helicopter is just an effect. You don?t need to be troubled about it.

How to play the Helicopter game?

If you know how to click the mouse button, then you surely know how to play the helicopter game. There are 2 ways to navigate: upward and downward. To achieve altitude, you need to hold the mouse button (just make sure you don?t hit the green wall). If you want to go down, but not totally down, just release the mouse button. You get back on flight if you resume your ?mousecapade?. That simple and that easy; your intelligent dog can play it? nah, just kidding.

Helicopter game might be 20 years behind most of the technologically advanced games today. But what the heck? For a change, you can try it and play if for a couple of minutes just to kill time during breaks. You need not to spend you whole day playing it.

This content is provided by Low Jeremy. It may be used only in its entirety with all links included. For more information on RC Helicopter & other useful information, please visit http://rc-helicopter.articlekeep.com