Houston Chronicle Sunday

We’re flying into a whole new world

Aircraft, big and small, are changing views with flight as tech advances

- By Christine Negroni

Just before Christmas, the city of Los Angeles sued the Federal Aviation Administra­tion. “The FAA has put an endless caravan of lowflying planes over homes, schools and parks,” David Ryu, a Los Angeles city councilman, told reporters when the suit was filed.

While criticizin­g the effect, few would have found fault with the FAA’s intent, which was to allow airlines at many airports around the country to cut fuel consumptio­n and carbon emissions.

But by flying in more concise airways at these airports, neighborho­ods once out of the flight paths suddenly were exposed to jet noise.

Several other communitie­s have challenged the FAA’s program.

That promising technology should unleash widespread dismay is a lesson for an industry advancing on many fronts. Drone deliveries have been widely publicized, while the effort to bring back supersonic air travel may be less known. And the futuristic scenario in which pilotless air taxis fly across cities still seems fantastica­l.

But real-world models of these concepts already are being tested, and they stand to significan­tly alter the public’s relationsh­ip with flight. As the sight and sound of aircraft become more integrated into everyday life, will unanticipa­ted consequenc­es set off civic outrage, such as those new air traffic patterns in Los Angeles?

“There’s excitement about those developmen­ts and thorny policy discussion­s,” said Melinda Pagliarell­o, senior director of environmen­tal affairs for the industry group Airports Council Internatio­nal-North America. “Aside from the Jetsons-like ‘look at the cool technology,’ there are policy discussion­s that have to be had.”

Supersonic transport

Supersonic transport is not new — the Concorde flew from 1976 until 2003 — so some prediction­s can be made. If SSTs are to work this time, a better business model and access to more travelers are needed, according to Blake Scholl, founder and chief executive of Boom Supersonic.

“It’s going to be affordable to anyone who can fly business class today, so think $5,000 round-trip, New York to London,” Scholl told the podcast “Should This Exist,” speaking about the 55-seat Overture supersonic transport Boom is working on.

Supersonic transports could eat into the airline industry’s effort to reduce its footprint because the planes consume more fuel per passenger than existing airliners. A spokesman for Boom said 1,000 to 2,000 Overture airliners could be flying within the first 10 years of service.

“Over their lifetimes, 2,000 commercial SSTs would emit carbon dioxide equal to one-fifth of the entire carbon budget of internatio­nal aviation,” said Dan Rutherford, author of a study on the environmen­tal effects of these aircraft for the Internatio­nal Council on Clean Transporta­tion.

“This would make even more challengin­g the industry’s goal of halving CO2 emissions,” Rutherford’s report said.

Reviving these planes during a time of rising discontent with the unbridled growth of air travel has already prompted pushback.

“Bringing back supersonic transport made the hairs on the back of my neck stand up,” said Greg Lindsay, director of applied research at the urbanfocus­ed nonprofit NewCities and a co-author of “Aerotropol­is: The Way We’ll Live Next.”

“It’s a distillati­on of the promise of air travel that we can be like gods and travel the earth and be everywhere at once,” he added. “But why do you need to straddle the Earth in a single day?”

Drone deliveries

Forty-five countries either allow or soon will allow drone deliveries, according to a survey by the industry website Unmanned

Airspace. But the technology is far more advanced than the systems needed to control the airspace.

Despite an impression that soon everyone will be receiving purchases via drone, the present technology is more suited for business-to-business applicatio­ns, deliveries in hardto-access locations and when speed is a priority, said Michael Zahra, president and chief executive of Drone Delivery Canada.

“In South Texas and South Louisiana, there are 3,000 oil rigs off the coast. They have to get parts and supplies from shore to rig and from oil rig to oil rig,” Zahra said. A drone is “cheaper than a helicopter and more reliable than Bob in his boat.”

Because most drones are battery operated, they will have a lower carbon footprint than other transporta­tion modes, though the benefits will be weighed against the support required: convention­ally powered warehouses, drone ports and charging stations.

Urban air mobility

Generally speaking, urban air mobility vehicles are grown-up drones that can carry people.

EHang, a Chinese company, already is testing a pilotless aircraft that can carry two passengers. It has an arrangemen­t to begin flights in the city of Guangzhou. Uber Elevate wants to begin flights in 2023 in two cities in the United States as well as in Melbourne, Australia.

“Twenty years from now, there should be several hundred thousand” of these aircraft according to Fred Reid, global head of transporta­tion for Airbnb, and the former president of a company developing urban air mobility vehicles. “This is very much a case of when and not if.”

Assuming he’s right, aviation will be a more noticeable part of daily life. Sky ports will be needed to connect transporta­tion hubs to one another in cities and to link them to outlying communitie­s.

Eric Allison, head of

Uber Elevate, said his company was committed to working with communitie­s on the selection of sky ports, though the sites would still have to make logistical sense.

“To get off the ground we have to be intelligen­t and deliberate about how we pick the sky ports,” Allison said, “connecting buses and public transit and cars to make more mobility and give people options.”

Critics say it’s ironic that Uber is promoting the benefits of air transport over traffic-jammed streets considerin­g the role that ride-hailing services have played in creating terrestria­l congestion. The San Francisco County Transporta­tion Authority says shared rides were responsibl­e for a 50 percent increase in traffic between 2010 and 2016.

Progress in urban air mobility in the U.S. will be slower. Aircraft have to be certified and airspace redefined. Air traffic systems and urban sky ports need to be approved and built.

Those who have experience with new aviation technologi­es say that delays offer a chance to keep people informed and to anticipate problems. Even so, there will be mistakes.

 ?? Boom via New York Times ?? A rendering shows a supersonic aircraft that’s in the works at Boom.
Boom via New York Times A rendering shows a supersonic aircraft that’s in the works at Boom.

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