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Flip Flops At The White House. A Good Idea?
Should a certain type of dress be expected for special occasions? Should a person be required to dress a particular way when an event is considered formal or semiformal? What would you wear on a visit to the White House?
I don’t mean your...
New Sports forum launched
Everyone loves talking about sport and they have no better place to talk than a new Sports forum.
Who should be sacked? Who is injured? Who is playing well? Who is going to win the Superbowl? These are the types of questions that get...
Shop Planet Golf
Nicholas Alexander also known as Nick Faldo was born on July 18,
1957 is considered to be undoubtedly the best and the most
successful European golfer ever with over 42 titles to his
credit. Nick always demonstrated a natural aptitude for...
The Up-Side of Driving Motor Scooters
For years traditional scooters have been a common kid’s toy, second only to a bicycle, simply because they are fun to ride and they move you around easily to closely surrounding areas. Motor scooters have also existed for many years but until...
Whey Protein- Nature's Amazing Muscle Builder
Are you concerned about taking care of your body before and after strenuous activities or workouts? Do you try to avoid supplements that contain additives and possible side effects? If you are interested in better health and improved physical...
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Scramjets: The Hypersonic Challenge
Almost 60 years ago, the sound barrier was thought impossible to pass. Yet soon after the X-1’s success, programs were already in the works to take us beyond Mach 1 and into supersonic flight (Mach 1- Mach 5). However, to cross the next barrier of hypersonic flight (any speed greater than Mach 5), drastic problems would have to be over come in design, propulsion, and construction materials that were currently unavailable. With years of research and testing, these obstacles were finally overcome with the recent success of Mach 9.8 flight achieved in November of 2004. Powered by the Scramjet (Supersonic combustion ramjet), NASA’s X-43A test vehicle touched a realm of flight rarely found by air-breathing airplanes, hypersonic flight. With the X-43’s amazing thrust potential being produced by an engine that has no compressors or moving parts, scientists and countries alike are intrigued to see how this technology can be applied towards future goals and projects.
Scramjets are not a new idea. Although the most exciting developments and successes have taken place most recently, the concept has been actively pursued since the 1940’s. With government supersonic flight programs like the F-80 Shooting Star, Republic XF- 103 and the X-15, valuable information was gained about ramjet/scramjets performance. Their advances in studying hydrocarbon-fueled engines alone have helped scramjet technology to reach its current developmental state.
Scramjet engines are a far departure from the conventional turbine jet engine. Air enters both engines and is compressed. Fuel is added to the compressed air, ignited, and
forced out the back of the engines. This is basically the only thing the two engines have in common. However, if hypersonic flight is to be achieved comparisons need to be drawn against this and other a power plants to see why the scramjet is the answer for hypersonic propulsion.
With the successful demonstration of these engines by the United States and other countries, many possibilities are now attainable. From precision guided missiles to Mach 10 flight, and the proposed X-43B, the technology is here to stay. If funding can be secured, new generations of long range bombers, fast-reaction cruise missiles, and a space launch system that could cut the costs associated with propelling astronauts and payload into space to one-hundredth of today’s prices, could be realized. Civilization continues to strive for faster and more efficient means of transportation and with scramjet-powered vehicles, the hypersonic barrier now does not seem impossible. With promise, scramjets powered vehicles might one day live up to the aggressive political goals stated by President Reagan in 1986 in regards to the National Aerospace Plane, “To provide travel from New York to Tokyo in two hours.” However talk is cheap, and one thing scramjets have definitely proved, low cost scramjet research and development doesn’t exist.
About The Author
Tim Patterson, webmaster for http://www.magneticdrainplug.com is a commercial pilot and aviation enthusiast. Email him at webmaster@magneticdrainplug.com.
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