it's 6 months different things from life than your parents do. i just want to pursue was that's my thought. fired or you think you kid is 2 different risk, irresponsible, unreasonable, or some part of those nonsense. i wonder if my son to the doctor, is there an alternative plan? we've done everything to prevent a divorce, but nothing works. so in the, it's time you were a sweet thing for us. and then when generation industry is kind of fun, it feels like there's the free the, the best throughout the world. i think i flew in this electric

please. who's johnny, you could argue started in 1883. that was the 1st electric aircraft that ever flew around 20 years before the right brothers, along the line of funding and useful aircraft scheme, often including unmanned aerial vehicles in proteins and let the father to day. oh my god. this is the 1st flight of fun saying to fly electric and the was right. the dozens of projects that are on the now figuring out how to finally make electric aviation reality and some of the speed of downright funky, that convinced the time has come. some companies already settings tickets. the silent, cheap to operate and potentially up to 90 percent more efficient than just you with across an e plans or just. but as you can see here, it's really easy to get caught up and all the hype, they've never really worked at security before. so i'm in north eastern sweden to find out fly. we all know slang electric,

and it won't surprise you to hear that. how we fly today needs to change if you shouldn't mix up for around 3 percent of global emissions. and okay, that really doesn't sound so bad. but by 2050, that number is projected to rise to over 8 times. but, and there are no real ways to fly pollution free. so what is, why are you, what is the most promising solution? so a vision pollution, a biofuels more broadly sustainable aviation fuels. they mostly made from non petroleum products like bio mass. so out again, you can basically just swap the fossil fuels in here for biofuels. i'll make a blend, but we need so much of it. the scaling up is very hot and the land that they use for other purposes like throwing food or saving far. and then there's also hydrogen that shrink from this, especially hydrogen made sustainably, a lot of prototypes are being tested. electric plants are a 3rd option, and they can make a really compelling case up here where we know we were run off hydro power or wind

power. so they liked us and we have is a sustainable renewal. so for us that's, that's the, the most sustainable we can do. right now for the, for us, this is you on know, but as going to of 80 ition and one of the only people flying airplanes. every day . we did an a vision school in sweden where future pilots are being chained and flying electric lands. we, we want to sort of me the industry into something new and showing that it's possible to find new products with high quality and, and bought in a sustainable way. i mean, you sound quite confident that it's going to happen. i mean, i feel confident in the way that i'm an electrical engineer as well as one major difference compared to maybe 10 years ago with stuff there is proper money being put into. that's because if we get electric engine side, we, when the efficiency get electric engine is going to be 3 times more efficient than those that he was supposed to the fields. and of course they don't degrade the equity during operation. the biggest little bell as they fly here doesn't need much

electricity. it takes around an hour and a half to charge on which is going 545 minutes with the result of 30 percent. patchy is mostly used for pilot training or private key. she left the airport has a one mega what charging station, which is enough to judge a small suite of electric plans on the same time. so i get faster tough to get in. so hoss 1st is easier i'm ready. all right, let's go the . 7 as fast this is a super light plane, but it can only go to people with no hand luggage to go any bigger e plans off face with a big problem. heavy batteries, even though they've been

a lot of advancements in factories, we actually haven't come that far. because successful for cause, roughly for an electric chevrolet boat to drive the distance, a honda civic, good on a full deck with you was the battery would need to be 17 times have you and cause to stay on the ground. so the width doesn't matter so much, but for boeing, 747 to fly from say, london to it's done with batteries will need to be this much heavier than a full time. this just going to work, since this wouldn't be 10 times heavier than the heaviest payload ever lifted. when you're storing energy, you need a very high level of energy density. that's good, garry, how does the apples program at the us, department of energy use national renewable energy lab and petroleum and petroleum related products or petroleum drive products like biofuels have a really high energy density when compared to the energy density of traditional fuel batteries? they have very poorly coming in at only 2 percent. but conventional aircraft to be

flying today i've been, is for just use it all started with a design off and the 1950s. we've been propeller plans the most popular at the time, and still by an end to it looks like this. the performance characteristics between those 2 aircraft were the turban was slightly faster, but it could go as far. and, you know, you got marginal gains by doing that. and then 5 years later, they figured out for different sizes for different configurations, all of a sudden it makes sense to use these because of now how like you can make a service over time. this though, bye in or cuban wing design became vastly more efficient. okay. we know if the res, today's deadline has been almost 50 percent less fuel passenger kilometer, then they did 50 years old. but they have a better engines improve aerodynamics and a lot of other open, invisible changes. but the thing is, this design has peaked in the way it's very hard to become more carbon efficient unless you squeeze even more people onto already very died plans. so governments

and many of the industrial going back to the drawing board to redesign and another 1950 style design of it's a really, really interesting time in that sense because things are up for grabs. again, this is done by a vision expert we looked at on the ground infrastructure to support the transition by working together with detroit. but we looked at 2 main modes of operation for doing that one, which was a battery charging system, so where the battery would remain fixed within the craft. you would plug it in as if you would like a normal device. you would just charge it. this would be the simplest way operationally speaking, but they also found the charging would waste precious time when current edge traffic relies on a quick don't around fans, wood ok by limited space in the airport. and of course, the amount of power needed would take away significantly from the city's grid. the 2nd sort of mode of operation we looked at was a battery swapping system. and that would be where you would have pre charged x

rays. and then when an across came in, you would remove the battery from the frame and then swap it with the one that had already been pre charged. this would save space and time, but it would require a lot of specialization, which we currently don't have anywhere. and it would be a big risk meddling with an airframe is always dangerous. and there's also the major risk of files from holding so many batteries in one place. so of the 2 systems we, we favored the battery charging system. but we were very aware of the potential limitations that compose, so not easy. the, i mean you can find your. so what do i do if you want to know if it goes down when i push the thick forward, if you want to take it back to this real, to the 1st plans to be certified. but this is another huge. i don't know what

a vision has compared to because being certified for safety. so everything takes time for r n d testing and tony for battery safety and the use long certification process. but this january, the urban, solomon bush for the idea of more e plans for shot in mid range flights. there's a spot of a while to go to got 90 percent of emissions from transport by 2050. all right, thank you. oh, that was great. he said, i don't, my mother actually. okay, the company than me that the district is now working on a full see the plane and the already bigger ones, a plane called alice secretary, 9 passenger. the 2 crew members seem to be close to commercialization, promising to fly around $400.00 to auditors. a hot aerospace in sweden has a proof of concept aircraft that looks like 25 passengers up to 800 kilometers by 2026. when you look at, if you think about their existing cargo routes that use small aircraft, their existing communities, that they're only connection as a, as a 9 senior crap unless they take a ferry for or 6 hours type of

a situation. and those are real existing route that have to be either subsidized or paid for by by communities. this is the main application so far, and it is significant. and 2020, the us spent $326000000.00 to subsidize the costs of across to smaller apples. the don't see a profit ambulances at the axis. and small cargo plans also need only smaller across the child has or the 12 plans for lower emissions postal deliveries which can help local noise and quality too. but let's put this all in perspective. ready with everything that electrification can do now, based on current, patrick check and operational challenges, a study by the international center on team aviation estimates. the electric aircraft could cover 9 percent of the coming to markets that slides with more than 19 passengers and distances shorter than 500 kilometers. but this only accounts the 0.002 percent of global deviation. by 2050,

the estimated could be up to 0.2 percent, which is still smaller. what am i talking about? carbon emissions. but this is purely electric. we're talking about equals a house versions of hybrid. so you could have a series hybrid which is where essentially fuel is used to power an electric my to which then powers the aircraft. so you're using fuel to charge a battery, essentially. and then you also have a cool power low hybrids, which is why you have the electric lights up and the fuel source, so kerosene to hydrogen, probably is being used for propulsion. i couldn't imagine this tiny pen getting much bigger in the next 2 years, but the hybrid argument really makes sense. the idea estimates of hybrids would be the next leap. navigation of the 2030 is the new designs, replacing the tube and wing. and this will contribute to

a 40 percent reduction and emissions by 2050 long flights and most likely use by of deals with some parts of the plane electric side and some use of hydrogen. the position is a small step, but it gives hope for the potential of the diversity of technologies that are going to need for the 0 to the plan and the future of plants. like that's the comments section below. come back every friday. the interest of what did you do before i played tennis. she survived the ocean bits. thanks to music. he was the nazis favorite conductor positions under the swastika, a documentary about the sounds of power and inspiring story about survival. music in nazi germany, watch now on youtube dw documentary. you cream was like

a stepping points. you know, 5 votes you into that was, he wants to finish just now. yeah. train. you can just go back to somewhere else. the more people than ever on the world wide in search of, of best in life. so why do i want to go back tonight? yeah. like, i don't have any reason. there's no reason, investment thing for me this. yeah, i believe something that is coming very, very soon on. we know when the story in for my 3 reliable me. so migraines, wherever they may be, the we hear sound and understand speak. ready ready