I Alaka'builds a flying car on hydrogen, because they do not believe in batteries

Date:

2019-06-04 19:00:10

Views:

161

Rating:

1Like 0Dislike

Share:

I Alaka'builds a flying car on hydrogen, because they do not believe in batteries

Hydrogen fuel cells have great difficulty moving as the energy source for ground vehicles, but many are beginning to look for alternative ways to driving without emissions. A new start-up air taxi, Alaka'i Technologies this week unveiled an electric plane for five passengers, runs on liquid hydrogen, which, according to the creators, will be more efficient and powerful than aircraft batteries, which develop numerous competitors.

the

What is more efficient: electricity or hydrogen?

The Company to create a "flying car" is in Massachusetts and it's run by people from NASA, Raythein, Airbus and the Ministry of defence. Recently she presented the layout of the aircraft with six screws under the name Skai in Los Angeles, BMW Designworks, which collaborated on the design of the aircraft. Alaka'i said that the final product will be able to fly up to four hours to cover 600 kilometers in one loading of fuel which can be replenished in 10 minutes at hydrogen filling station. According to the company, she has created a full-scale functional prototype that will make its first flight "soon".

This is not the first aircraft on hydrogen fuel cells; Boeing did so in 2008. But it will be the first of its kind. Box configuration Skai has an aerodynamic appearance, like the prototypes from Lilium, Bell, and Yes, Boeing. The top speed is only 224 km/h, while other concepts eVTOL (electric vehicles vertical takeoff and landing) promise speeds of up to 270 km/h. Skai was designed more for efficiency which is more important than maximum speed, if carried out dozens of short hops every day.

"Our task was to make it simple and we focus on creating certain images reusable repetition throughout the day," says a veteran of NASA's Bruce Holmes, included in the Board of Directors Alaka'i.

The Argument in favor of fuel cells comes down to energy density: pound (almost a pound) of compressed hydrogen contains 200 times more energy than a pound of batteries, says the founder Alaka'i Brian Morrison. This means that Skai can meet the requirements for speed, range and capacity, which, in the opinion Alaka'i will make it competitive, while allowing to save much weight is a primary consideration for everything that flies. Although the company did not disclose the specifics of the power system, she States that it and its supplier of fuel cell (also not disclosed) managed to make a breakthrough in technology, providing the necessary performance.

Hydrogen fuel cells prove its ability to significantly improve the performance of transport systems: some small unmanned aerial vehicles moved from 30-45 minutes of work on battery up to 2-4 hours of work with fuel cells, says Thomas Valdez, chemical engineer at Teledyne Energy Systems. And they offer the advantages of safety, eliminating the risk of thermal runaway of the battery. Even punched a tank is not a problem. "Under the pressure of the hydrogen will quickly dissipate into the air, therefore, will not accumulate or catch fire, as conventional fuels," says Valdez.

Of Course, as with all startups related to air taxi, Skai is a lot of problems. Chief among them is ensuring the timely receipt of the FAA certificate, which is not guaranteed considering the installation of a new propulsion system in the apparatus of a new type. Holmes believes that they will help to optimize the structure.

"we Have much fewer spare parts than traditional aircraft and half the requirements that must review the FAA," he says. Skai have no tail rotor, and a ballistic parachute means that you won't need to rely on auto-rotate to a safe landing if you fall off the power. The six screws that produce 450 horsepower, are in a fixed position and do not turn in front of the vertical or horizontal take-off.

To cope with this problem, i Alaka'plans to skip the service air taxi at an early stage, focusing instead on the emergency services, search and rescue missions and transporting cargo. These roles do not require the same certification standards, and passenger flights. An extremely optimistic rating from Holmes: certification is just a few months (and will be completed by the end of 2020) instead of the standard five to ten years.

Hydrogen is, of course, there is a disadvantage, namely the fact that it is not so much around. The lack of refuelling infrastructure hinders the work of ground vehicles operating on hydrogen, but aircraft can be easier. Instead of having to rely on a gas station on every corner, the aircraft can have a more centralized fueling centers supplied by tankers.

Another potential obstacle may be the cost of equipment.

"Hydrogen fuel cells used in spacecraft for quite some time. This is a proven technology," said Charles Eastlake, Professor Emeritus of aerospace engineering at the University of aviation them. Embry-Riddle Aeronautical. "But it prevents the cost."

He noted that the project of creation of electric aircraft, which the University undertook in 2011 included the fuel cell, which would cost $ 250,000 on the open market, and all thispower relatively small 40-horsepower electric motor. Although the technology since then has only improved, and the cost falls, it falls not much, given that most of the dollars going to R & d goes to the batteries.

Alaka'i said that the first will be launched first airplane, and then implemented a highly automated and fully Autonomous mode. Startup focused on price around $ 200,000, although the first models are likely to be much more expensive. Production will be approximately 10,000 per year. This is a huge number, none of the manufacturers does not produce more than 700 aircraft.

In the end Alaka'i want to create a version accessible to all citizens, only in the price category as luxury cars. The key difference, of course, will be that these cars can fly.

So, begin to save? More stories you will find .

Recommended

In Estonia create an electric car that can be parked on the wall

In Estonia create an electric car that can be parked on the wall

Today there are more electric cars from various manufacturers. At the same time just to release the electric vehicle is not enough. Need something to surprise and interest the end user. Someone when positioning makes the battery life without rechargi...

Tesla is developing a car with rocket engines

Tesla is developing a car with rocket engines

Tesla, which currently is the most famous manufacturer of electric cars was in 2003. The first car was the Tesla Roadster, which was released only five years after its founding. At the moment it is not sold, but the company is developing an updated v...

What's wrong with the Autonomous truck from Lebedev Studio?

What's wrong with the Autonomous truck from Lebedev Studio?

Movers and truckers at risk of losing their work because soon they will be able to replace robots and trucks with an automatic driving system. The American company engaged in the development of the first year, and very successfully — in the world alr...

Comments (0)

This article has no comment, be the first!

Add comment

Related News

The Norwegian capital will install wireless charging stations for taxi

The Norwegian capital will install wireless charging stations for taxi

the Appetite of Norway the electric cars are rising every year. For example, according to the latest data, 40 percent of all car sales in the country last year was accounted for by electric vehicles. So it is not surprising the ne...

#video | Project of a flying motorcycle Lazareth real — he raised up on metre height

#video | Project of a flying motorcycle Lazareth real — he raised up on metre height

French company Lazareth is known for its fancy motorcycles, which with its stylish, bold and even aggressive appearance demonstrate proper enormous power. At the end of 2018, she introduced flying at the time seemed futuristic exh...

New image pickup Tesla was puzzled by designers

New image pickup Tesla was puzzled by designers

Recently, the company Tesla has finally unveiled its long-awaited electric . It turned out that in one of the demo videos the company has hidden "Easter eggs" in the form of a teaser of the future of the future of the pickup truck...