This report analyses and discusses the discovery of high-speed manned flight and ‘Mach’ - in particular research and aviation breakthroughs relating to the specified topics. High-speed speed flight is technically defined as ‘flight near, but below the speed of sound’ [1A]. This begins at an airspeed of around 250 mph, or 400 kph. Properties regarding the airflow around an object at low speed or below this threshold of 400 kph are relatively straightforward, and can be compared to that of an aircraft moving through a body of water. This is due to the negligible change in air density at these speeds, and conducting calculations without factoring in the compression yield remain accurate. However as the speed surpasses 400kph, some of the energy from the aircraft is used to compress the air in front - increasing the air density in a local area around the object[2A]. This is known as “compressibility”, and is a key factor in high speed flight. The pilot of an aircraft such as a Cessna with a top speed of 302 kph can ignore compressibility altogether, however faster aircraft must be able to factor this in. Ernst Mach and Christian Doppler, are among the main contributors regarding research and theoretical work towards the current understanding of supersonic flight. In 1842 Christian Doppler proposed the widely known “Doppler Effect”. He theorised that if the source of a sound that is emitted is moving towards the observer, the frequency of the sound will increase due the sound waves emitted being closer together in the medium they travel through - in Earth’s most common scenario air. For the source travelling away from the observer, the inverse is true. This can be directly related to the effect of compression that air undergoes in f... ... middle of paper ... ...f sound. Jettisoned from the bomb bay of a B-29 ‘Flying Fortress’ travelling at 400 kph, Yeager advanced with his plane through the transonic range up to Mach 1.06 (1,300 kph), at an altitude of 43,000 ft. Chuck reported extreme buffeting before breaking through into a quiet environment, with regained control and no buffeting. The sound barrier had been conquered. BIBLIOGRAPHY 1A - http://www.langleyflyingschool.com/Pages/CPGS%204%20Aerodynamics%20and%20Theory%20of%20Flight%20Part%201.html#High-speed%20Flight , Para 35. 2A - http://www.grc.nasa.gov/WWW/BGH/machrole.html , Para 1. Lockheed P-38 Lightning 4A - Swatton, Peter J. 2010, Principles of Flight for Pilots, e-book, accessed 21 May 2014, Page 207 . 5A -
supersonic and stealth fighters and helicopters. The skies became an important battlefield to master, a feat that would require the best of the best military aircraft. The use of military aircraft dates back as early as the 1800’s with lighter- than air flight and because of many people and developments, aviation has become a very important aspect of a country’s military. There are many important events that helped progress the evolution of military aviation. In 1907, the United States established the
January 28, 1986, at 11:38am, one minute until the Challenger space shuttle lifted off, the weather was bad, but still have lot people drove to and watch the launch at that freezing day, people don’t know the bad weather are leading to a disaster, actually the engineer already warn that the launch are extremely dangerous at such a cold day, at 11:39am, the Challenger space shuttle took off, few second later abnormal black smoke comes out from the roll booster, around 45 second after took off observed
The Gulf War The Gulf War was much more than a fight to liberate Kuwait. It was the first non-conventional war; in which new, fairly new, or even experimental weapons were used. The Gulf War displayed much new technology that you will learn lots about in this paper. This paper may sound very technical, but that is what it is about, the new weapon technology vs. the conventional types of weapons used in previous wars. This paper is about the advancement of weapon technology, and how the military