The term "hypersonic speed" is widely defined as any speed above Mach 5, which is more than five times that of sound. This threshold is used to define a true subset of air vehicles whose development represents a significant engineering challenge today. In particular, an object flying at such a speed suffers massive heat flux when it passes through dense layers of the Earth's atmosphere, which inherently makes hypersonic flight particularly difficult and expensive. However, there are also some problems with the definition of "hypersonic speed", and to some extent with the definition of "hypersonic missiles". Today, let's see if we can shed some light on this, while also addressing the debate that inflames experts about the true effectiveness of these marvels of modern technology.
Sources used for this video:
- S. Bugos, K. Reif, "Understanding Hypersonic Weapons: Managing the Allure and the Risks", Arms Control Association, 2021;
- D. Wilkening, “Hypersonic Weapons and Strategic Stability,” Survival: Global Politics and Strategy, 2019;
- T. Zhao, "Conventional Challenges to Strategic Stability: Chinese Perception of Hypersonic Technology and the Security Dilemma", 2018.
Sitography:
www.sipri.org/commentary/topi...
russiancouncil.ru/en/analytic...
allthingsnuclear.org/ctracy/t...
carnegieendowment.org/2013/09...
it.insideover.com/guerra/ce-q...
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