In this task, you are given an article. Your task is to summarize the article in a sentence.
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Question: The project is being developed at Google X, the company's clandestine tech research arm, which is also responsible for its self-driving car.
Project Wing has been running for two years, but was a secret until now.
Google said that its long-term goal was to develop drones that could be used for disaster relief by delivering aid to isolated areas.
They could be used after earthquakes, floods, or extreme weather events, the company suggested, to take small items such as medicines or batteries to people in areas that conventional vehicles cannot reach.
"Even just a few of these, being able to shuttle nearly continuously could service a very large number of people in an emergency situation," explained Astro Teller, Captain of Moonshots - Google X's name for big-thinking projects.
Google's self-flying vehicle project was first conceived of as a way to deliver defibrillator kits to people suspected of having heart attacks. The idea was that the drones would transport the equipment faster than an ambulance could.
"When you have a tool like this you can really allow the operators of those emergency services to add an entirely new dimension to the set of tools and solutions that they can think of," said Dave Voss, incoming leader of Project Wing.
The prototype vehicles that the company has built have successfully been tested by delivering packages to remote farms in Queensland, Australia, from neighbouring properties.
Australia was selected as a test site due to what Google calls "progressive" rules about the use of drones, which are more tightly controlled in other parts of the world.
Project Wing's aircraft have a wingspan of approximately 1.5m (4.9ft) and have four electrically driven propellers.
The total weight, including the package to be delivered, is approximately 10kg (22lb). The aircraft itself accounts for the bulk of that at 8.5kg (18.7lb).
The small, white glossy machine has a "blended wing" design where the entire body of the aircraft provides lift.
The vehicle is known as a "tail sitter" - since it rests on the ground with its propellers pointed straight up, but then transitions into a horizontal flight pattern.
This dual mode operation gives the self-flying vehicle some of the benefits of both planes and helicopters.
It can take off or land without a runway, and can hold its position hovering in one spot. It can also fly quickly and efficiently, allowing it to cover larger distances than the more traditional quadcopter vehicles available commercially.
The vehicles are pre-programmed with a destination, but then left to fly themselves there automatically.
This differs from many military drone aircraft, which are often remotely controlled by a pilot on the ground, sometimes on the other side of the world.
Eventually Google said it could use unmanned flying vehicles to deliver shopping items to consumers at home. That's a use that retail giant Amazon has already stated an interest in, with its proposed Prime Air service - the announcement of which generated headlines at the end of last year:
Amazon has asked the US Federal Aviation Administration for permission to conduct outdoor tests.
"The things we would do there are not unlike what is traditionally done in aerospace," said Mr Voss.
"It will be clear for us what level of redundancy we need in the controls and sensors, the computers that are onboard, and the motors, and how they are able to fail gracefully such that you don't have catastrophic problems occurring."
Other unusual vehicles have been investigated for humanitarian aid, including flying cars and hoverbikes, with the same aims of reaching cut-off areas quickly.
"We will have to see what kind of specific technology works best within the aid landscape, and if the new technology can integrate positively in the local context," said Lou Del Bello from news site SciDev.net, speaking about the category in general.
"It will need to demonstrate it can be cost effective, and respond to actual needs of local people."
You can hear more about Google's self-flying vehicles on The Science Hour this weekend on the BBC World Service

Answer: Google has built and tested autonomous aerial vehicles, which it believes could be used for goods deliveries.


Question: Dame Helen led the business lobby group in the immediate aftermath of the financial crisis between 2009 and 2011.
The CBI's current president Paul Drechsler said she was "a brilliant leader" who was "widely respected".
The Economist Group, of which she was chief executive from 1997-2008, said business had "no better ambassador".
Dame Helen, who was married with three children, had been battling cancer for several years.
She began her career in publishing at Faber & Faber, before moving to the Economist Group in 1985, where she became managing director in 1993 before taking the helm in 1997.
Her career also included boardroom roles at Rolls-Royce, Centrica and Northern Foods.
The number of high-profile city and business roles she had during her career meant Dame Helen was seen as a trailblazer for women in business.
She was also co-chair of the Hampton-Alexander review - a government commissioned review into increasing the number of women in senior business roles.
Announcing her death, the Economist said she was "self-effacing but a world-class networker".
It paid tribute to her leadership style, which "lacked fireworks and did not seek fame but deserved more recognition, for both its humanity and effectiveness".
The CBI's Mr Drechsler added: "People will remember Helen for being a great listener with a thoughtful sense of humour. She will be greatly missed by me and by everyone who knew her, both in the UK and beyond."

Answer: Tributes have been paid to Dame Helen Alexander, the first female president of the Confederation of British Industry (CBI), who has died aged 60.


Question: Murray, 28, said that he was moved to act by coverage of people travelling to claim asylum in Europe.
"Having seen the images broadcast on the news I felt I had to do something to help," he said.
Murray's sponsor Standard Life, along with the Lawn Tennis Association and ATP, will each match his donation.
The world number three will play for Britain in their Davis Cup semi-final and is also due to compete in events in Shanghai and Paris before the World Tour Finals in London in November.
The British number one hit 64 aces in his four matches at the US Open earlier this month.
Murray has been one of Unicef's celebrity supporters since 2014 and starred in a series of comedy skit videos in June to raise money for the charity.

Answer:
Andy Murray has pledged to give £50 to children's charity Unicef every time he hits an ace for the rest of the season in a bid to help the refugee crisis.


