9P How Flying Cars Work
Transcription
9P How Flying Cars Work
Nelson How Flying Cars Will Work Magazine Article by Kevin Bonsor While sitting in a sea of cars in bumper-to-bumper traffic on an endless expressway, have you ever daydreamed about your car taking off and flying over the road? Imagine if you could just flip a switch and unshackle yourself from the pavement! Traffic jams are a nuisance for all commuters. Many of us spend an hour or so stuck in traffic every week. The growing population is partly to blame for our congested roads, but the main problem is that we are not expanding our transportation systems fast enough to meet ever-increasing demands. One solution is to create a new type of transportation that doesn’t rely on roads, which could one day turn traffic jams into a twentieth century relic. To do this, we must look to the sky. In the last century, airplanes and mass-produced cars have changed the way we live. Cars, which became affordable for the general population mid-century, have allowed us to move farther away from cities, and planes have cut travel time to faraway destinations considerably. At the beginning of this new century, we may see the realization of a longheld dream—the merging of cars and planes into “roadable” aircraft, or flying cars. You’ve probably heard promises about flying cars before, but now the technology to make them safe and easy to fly may finally be here. Around the world, engineers are taking on the challenge to design a new breed of flying cars. While sleeker, more advanced cars have been developed in the last decade, no one has come close to opening up a flying car dealership. Here are a few of the individuals and companies attempting to deliver a flying car: Canadian Paul Moller has spent 40 years and millions of dollars developing his Skycar. He is now very close to Reading: Making Inferences and Asking Questions (Teen Builds Electric Pickup) developing the first ever mass-marketed flying car. In 1965, he released the XM-2, which hovered off the ground but didn’t go anywhere. In 1989, Moller International unveiled the M200X, which has now flown 200 flights and can hover as high as 15 m off the gound. Paul’s latest design, the Skycar M400, is designed to take off and land vertically in small spaces. It can reach speeds of 644 km/h and can travel 1449 km on one tank of gas. Gasoline, diesel, alcohol, kerosene, and propane can be used to fuel the Skycar. Its fuel efficiency is comparable to that of a medium-sized car. The initial cost of the Skycar will be about $1 million, but once it is in mass production that price could come down to as low as $60 000. The Skycar M400 makes flying cars a reality. MACRO Industries in the United States is developing a flying car called the SkyRider X2R. This aero-car will be able to take off and land vertically. The SkyRider incorporates the interior design of a two-seat sports car with the mobility of a helicopter or airplane. The company says it is also developing five- and seven-seat models of the SkyRider, which should fit in most two-car garages. The navigation system will be controlled almost entirely by GPS satellites Reading: Making Inferences and Asking Questions (Teen Builds Electric Pickup) and cellular services. Drivers will simply get in, turn on the power, and enter the address or phone number of their destinations. The SkyRider will do the rest. MACRO says that the system will be almost fully automatic, but may allow some manual control. Commands will be entered by simply telling the car what you want it to do. In Israel, Dr. Rafi Yoeli of Urban Aeronautics is testing the CityHawk, a prototype of a fly-by-wire (or computercontrolled) car. He’s also working on a project centered around the X-Hawk, a rotorless Vertical Take-Off and Landing vehicle (VTOL). The CityHawk is similar to the Skycar and SkyRider in that it also takes off and lands vertically, but there are some key differences. The CityHawk will be powered by fans that are driven by four internal combustion engines. Much like in the Skycar, the extra engines in the CityHawk will allow the vehicle to land even if one of the engines is lost. The CityHawk is about the size of a Chevy Suburban, and will have cruising speeds of 145 to 161 km/h. CityHawk developers say that it could be used as an air taxi, for news gathering, and for traffic control. The future mass availability of flying cars could be very exciting or very scary, depending on how you look at it. If proper safeguards are put in place, they could be the answer to our ever-worsening traffic jams. Flying cars that can travel at hundreds of kilometres per hour would cut most rush-hour commutes to a few minutes. They would also allow us to live farther from work and still make it to the office faster than we do in our road-bound cars of today. Copyright © 2010 by Nelson Education Ltd.d. Reading: Making Inferences and Asking Questions (Teen Builds Electric Pickup)