Is superfast really better? An airliner that can reach six times the speed of sound is being developed, but some worry about its effect on the environment.
2030 forecast: travel goes hypersonic
Is superfast really better? An airliner that can reach six times the speed of sound is being developed, but some worry about its effect on the environment.
Kevin checks his watch. School starts in an hour and he is still 2,000 miles away: unless the shuttle arrives soon he will be in serious trouble. Suddenly, to his relief, it glides to a halt in front of him. Fifty minutes later he is at his desk in the classroom.
Not everyone's journey to school in 2030 will be as dramatic as Kevin's. But new advances in science mean it could be possible.
A Texas company, Venus Aerospace, is working on a hypersonicTravelling at speeds of more than five times the speed of sound (Mach 5). jet called the Stargazer. If it works, the flight time from London to New York could drop from almost seven hours to less than one.
The Stargazer's revolutionary ramjetA type of jet engine that draws in air using the forward speed of the vehicle and compresses it for combustion. engine is designed to reach MachA unit of measurement charting the speed of an object in relation to the speed of sound. Travelling at Mach 1 means travelling at the speed of sound. 6 or 3,600 mph. The aircraft will fly at an altitude of 110,000 feet - so high that the passengers will be able to see the curvature of the Earth. It will have a range of 5,000 miles.
But the Stargazer is estimated to cost £26m - and will only have room for 12 people.
Another problem is noise. Even travelling at Mach 1, an aircraft creates a sonic boomA loud explosive sound caused by shockwaves created when an object travels faster than the speed of sound. . This is hugely annoying for people on the ground and can damage buildings.
NasaThe National Aeronautics and Space Administration, responsible for the US space programme. has been working on an aircraft called the X-59. According to test pilot Jim Less, it will "turn loud supersonic booms into quiet supersonic bumps".1
Another company, VeriJet, aims to cut journey times by using small, single-engine jets. These can travel between local airports where check-in times are much shorter than at larger ones.
Rail travel could be revolutionised by Hyperloop trains. The idea is to send pods at very high speed through a sealed tube which reduces air resistance. A journey from London to Scotland should take just 45 minutes.
Meanwhile, high-speed rail networks are growing rapidly. You can now travel from London to BarcelonaA city in Spain's Catalonia region, known for its architecture and art. - a distance of nearly 1,000 miles - in one day.2
Is superfast really better?
Yes: A huge proportion of people's waking lives is spent travelling, whether to work and school or for leisure. A superfast system would give us all extra hours to do things that are actually productive.
No: We already live at a ridiculously fast pace. What we really need to do is slow everything down so that we can appreciate our planet, rather than increasing energy use and making more demands on it.
Or... It might be useful, but it is incredibly expensive to achieve. The money being invested in it would be much better spent on other things, such as relieving poverty and helping the environment.
Keywords
Hypersonic - Travelling at speeds of more than five times the speed of sound (Mach 5).
Ramjet - A type of jet engine that draws in air using the forward speed of the vehicle and compresses it for combustion.
Mach - A unit of measurement charting the speed of an object in relation to the speed of sound. Travelling at Mach 1 means travelling at the speed of sound.
Sonic boom - A loud explosive sound caused by shockwaves created when an object travels faster than the speed of sound.
Nasa - The National Aeronautics and Space Administration, responsible for the US space programme.
Barcelona - A city in Spain's Catalonia region, known for its architecture and art.
2030 forecast: travel goes hypersonic
Glossary
Hypersonic - Travelling at speeds of more than five times the speed of sound (Mach 5).
Ramjet - A type of jet engine that draws in air using the forward speed of the vehicle and compresses it for combustion.
Mach - A unit of measurement charting the speed of an object in relation to the speed of sound. Travelling at Mach 1 means travelling at the speed of sound.
Sonic boom - A loud explosive sound caused by shockwaves created when an object travels faster than the speed of sound.
Nasa - The National Aeronautics and Space Administration, responsible for the US space programme.
Barcelona - A city in Spain's Catalonia region, known for its architecture and art.