Futuristic Flight The Green Supersonic Machine 1

Overview Green Supersonic Machine Sonic Boom Conclusion 2

Green Supersonic Machine Presented in April 2010 Plane concept by Lockheed Martin Corporation o 1 of 2 concepts NASA asked for o Also asked Boeing High altitude o 13,700 to 16,700 meters High speed o Supersonic (faster than the speed of sound) o From New York to Paris in about three hours → approx. 1,950 km/h o Less than half the time you need today (7.5 hours) Realistic launch expected between supersonic (adj.) = Überschall-

How it looks like Long, narrow, aerodynamic shape for high speed and fuel efficiency Inverted-V shaped "spoiler" to reduce the sonic boom 4

It is designed to be… quiet fast (up to nearly 2,000 km/h) fuel-efficient able to fly at a high altitude (13,700-16,700 meters) causing a low sonic boom Wait. 5altutude = Höhe Sonic boom?

Sonic boom Also "sonic bang" Aircraft makes noise o Forwards & backwards Faster flight → sound waves get compressed o Doppler effect 6sonic boom = Überschallknall

Sonic boom Flying faster than speed of sound o > Mach 1 = 1,225 km/h o Aircrafts breaks through "sonic wall" o Sound waves crash into each other, generating an overpressure, noticed as sonic boom 7 Sonic barrier = Schallmauer

Sonic boom Pressure waves can break glass o Concorde banned from flying over high populated areas Generated continually, as long as the aircraft is supersonic Inverted V reduces boom by modifying and softening the pressure 8

Conclusion 1 of 2 concepts NASA asked for o Lockheed Martin Corporation Quiet, fast, high altitude, low sonic boom Expected launch: Sonic boom o Caused by supersonic aircrafts o Sound waves crash into each other, causing an overpressure o Noticed as sonic boom 9

Thank you for your attention! 10