What Powers Our New Electric Airplane? (Sun Flyer Explained)

[@deadeye2924]

My father was a commercial pilot. If alive, he would be very excited about electric aircraft. This is the way of the future. I love the concept of vertical aircraft. One in particular is the German made Lilium Jet. What a wonderful design. I am looking forward to your future videos. Great work!

[@samr5619]

I like the electric plane idea for the channel. I can’t wait for it to be delivered!

[@eladiomarquez]

it doesn't get delivered it has to get flown to the airport

[@moseskelly2886]

Hey Jeffery and Christian!!! JR Aviation is off the charts!!! It's a HUGE success! It's very successful without a doubt in my mind! I absolutely love aviation a ton, I have a huge passion for aviation! I think it's really entertaining how the engine looks on the inside and out! It's extremely awesome to get an inside look at an electric plane and how the engine looks in every way! It would be so cool to see one in person! You both will have such an amazing, outstanding, spectacular experience! Getting to go on journeys and have lots and lots of great moments with those amazing aircraft's! I know for a fact I would for sure! When you fly a plane it feels wonderful especially your very first flight! I remember I was 15 when I got the chance to fly a plane. Getting the experience with a pilot by my side was absolutely incredible! It was so much fun! It was a Piper Warrior!

[@ashrafshadid5870]

Thank you guys

[@SkyLifeFlyer]

I'm curious about that 300 miles cross country you must do to get the instrument rating, is there a portable recharger or something to deal with that?

[@ralphnabozny8494]

you guys have it going on ; good JOB

[@jessevasquezlopez8254]

Wow I love how interested you guys are to really understand your own aircraft.

[@JRAviation]

We love new tech and especially the power of electricity!

[@xpeterson]

What is the energy density of those batteries? Being slightly heavier than normal, what is the takeoff roll of the plane? Stall speed? With the recent crash of the Siemens eFusion, are there additional safety measures? How are the batteries cooled? Can they be vented in case something were to happen? You touched on it in the video but didn’t specify - what is the service ceiling of this plane, assuming you have oxygen? Honestly, I’m still waiting for solid state batteries. You could probably just passively cool those by mounting them in the wings. Also waiting for solar panels to get cheaper. With so much surface area, it just makes sense to put solar panels on your plane and get a free ride once a week.

[@BobDiaz123]

xpeterson Lithium batteries are around 200wh/kgm and could go as high as 250wh/kgm.

[@annakquinn7084]

They blamed the pilot for the crash. They don’t want to look bad and push non sense forward.

[@donaldbingham8990]

So what is the the KWH of the batteries after 50 and 100 charge/discharge cycles? Battery capacity tends to fall off very rapidly. A range of 350 miles when new could easily be less than 75 miles in a year or less.

[@chadx8269]

Electric transportation The Salesman always are lying and double speaking.

[@simant_bhai_8]

Awesome video

[@3deeguy]

An air-taxi service could be built around electric planes. A series of small airports could be built around short flights. Batteries could be swapped out. To me, the idea makes sense. Maintenance also is simplified.

[@rogerwilco4736]

good one guys, this is the future for light aviation particulary flight training and short-haul commuter ops

[@Clayw21]

Two years to get your license! Exciting stuff :)

[@adamkessler4888]

This plane is totally mental. So cool and hope one day Ill be able to fly one...maybe yours😉

[@SamCAviation]

Great video, thanks for sharing! Any estimate for the useful load of the aircraft? Thanks!!

[@Justwantahover]

2up

[@kwasikwakye294]

So is the motor dc?

[@pieterveldsman8551]

Hi guys! Great information! Thank you very much! Do you guys perhaps know if I can undergo training for building and maintaining these electric siemens engines? Great job!!!!

[@FiDonkor]

electric motors need extremely little (practically none) maintenance. if you underwent training on maintaining them you'd be hard pressed to find work

[@patschuster9619]

Can you post their website?

[@AgentSmith911]

One day you young men are probably going to fly 737-800 size electric planes XD

[@rasolmosavi3880]

how many poles is this electrical motor?

[@Nihil1st1347]

On Your Tesla cars, did You check the clearances between the door - and other panels? The 1st model 3 I saw here, looked like the workes had little motivation. The clearances were very unequal, but the car had no accident.

[@NSResponder]

I'm convinced that battery-powered planes (and cars) will ultimately prove to be a transitional stage between petroleum-based fuel and hydrogen.

[@lisamccarty9561]

very nice dont forget Yuma AZ lol how long does it take for full charge from empty ???

[@petercrowhurst]

What is the weight of the engine and battery pack please

[@pbat118]

Why arnt dynimos or alternators used to help recharge batterries maybe even gear driven for fast spinning recharging via fan belt etc ??

[@eugeneputin1858]

Paul Freeman because you need a special illuminati alternator and they stopped selling those to the public

[@midlifeparty]

Love this

[@johnryden1884]

I noticed all the videos of the Sun Flyers have the steam gauges will the certified planes come with an optional Garmin G 1000 glass cockpit?

[@jesuisravi]

so, what price did you lock in?

[@elpatron8696]

Hey JR Aviation so can I put a deposit and get my license in the airplane once they deliver? Will they train?

[@pistolgripjoe]

So rad

[@stevehisey389]

How long to charge these batteries? I Assume temperature control of batteries at alt. flying will consune a percentage of stored power as well?

[@captlarry-3525]

as a 2 place with only 440 lbs useful load.. you should not compare to a C-172.. the speed regime is higher than a C-152.. but the rest isnt. speeds equal to old retractables with 150 hp is not shabby at all !

[@meme-lg4vh]

Electric planes are a big step forward in the world of aviation. The FAA makes small planes go through the same testing as big planes, so advances in GA planes are expensive and hard to do. Gr8 plane tho

[@JRAviation]

Yes indeed!

[@eladiomarquez]

I did't think that was going to get approved by the FAA

[@PistonAvatarGuy]

No range, no speed, basically useless = A big step forward?

[@PistonAvatarGuy]

@@jaxonmattox9267 Maybe, but if the plane can only fly as fast as a car can drive, what's the point of taking a plane? Also, the problem with that kind of thinking is that, when someone needs to fly further, they can't. That's one of the reasons why people wont consider electric cars, because the car might be able to take care of 95% of their driving, but people still want that extra range for when they need it.

[@ashh3051]

Nice! Can electric aviation use jets, or does it have to be propeller powered?

When are the give away winners going to be announced or did it already happen?

[@wpw4508]

If accurate, the graphic shows truly stunning lifetime fuel/maintenance/inspection costs: Sun Flyer 2 $15/hr vs a 172's $90/hr. And hopefully, we'll see much improved powerplant reliability versus a piston O-235 or O-360. Thinking "mountains at night"-level reliability. But it requires such MASSIVE batteries: At 92 kWh at 260 Wh/kg, you're carting around over 350 kg. If I had $350,000 burning a hold in my pocket, I'd hold out for a 3 hour @ 110 kt version (versus the current 3 hr @70 kt), which might be possible with batteries at 400 Wh/kg. Maybe in 5 years?

[@MX304]

This thing will never be more than a local / pattern flyer. No range, no charging infrastructure.

[@MartinSage]

No brained..,put that motor in a composite Quickie Q2 and you could cruise at 200mph!

[@michaelz5171]

Thats insane

[@JRAviation]

Pretty amazing tech!

[@skipperrussell2025]

Plutonium batteries and flux capacitors is the way to go.

[@ninjastarr4063]

Our Mooney cruises 165kt! A few days ago we got 218kt with a 50kt tailwind!

[@Johanfriesen]

Great coverage, what’s the price?

[@daveriley6310]

Last I saw it was $349,000 for the 2-seater.

[@faisalsheikh9522]

you did not mention about the price of plan

[@kenfogarty2968]

What's the parts price and delivery time like , guys?

[@nielsdaemen]

Specs are very similar to a tesla 90kwh! Amazing

[@Kimoto504]

Key tech questions for me would be battery pack weight at 95kWh and cost per kWh to replace it in say, 8 or 9 years. Yes, I know that batteries don't just "die" but gradually, slowly lose capacity over time so at the end of that 8 or 9 years you'll have say, 75% of original capacity... likely much more if the system's well designed and the operators take decent care of the aircraft.

[@marklandry2509]

Update on delivery please

[@Reaglesracing44_]

new subscriber here!

[@tomaspinho5269]

This video is just incredible!!! Love the aviation content.

[@andenw2408]

I want to go into the navy to become a pilot and then buy my own private aircraft some day

[@JRAviation]

Awesome!

[@songmaster9308]

So when are you getting the Sun Flyer 2? It's been almost a year. :D

[@NYRM1974]

I may have a solution to extended flight time for an E-Plane.

[@svesom]

Yes, I'm too. Take the Thermal.

[@CATA20034]

That's the motor and ECU from VW GOLF GTE:)))

[@gravitronrutherford1631]

Perfect for hybrid or all electric vtol passenger drones as well.

[@curtphillipps975]

Why no battery’s in the wings?

[@brucebeverly2629]

Something to consider: Longer wiring runs between motor and batteries increase resistance losses (in heat), increases weight and cost (power wiring), increases stress on wing spars (batteries are usually heavy).

[@workski2]

No where can I find the cost of the units

[@emmanuelmanahan3866]

Im Sure Oil Companies are not Happy with Electric Engine :)

[@BobDiaz123]

Maybe by 2025 to around 2030, solid state batteries will go into production. They exist in the labs, but are not in production yet. Lithium batteries are around 200 to 250 Wh/Kgm and the new solid state batteries should be around 500 to 600Wh/Kgm. This improvement will result in a major shift toward electric cars and aircraft. Lithium offer about 3,000 charge/discharge cycles, while solid state batteries offer over 20,000 cycles. Solid state batteries can be recharged in about 12 to 15 minutes.

[@lightrose100]

I think it would be better if you use electric/gasoline engine the same time for take off, and disengage the electric at cruising altitude using only smaller gas engine for long distance

[@glennbryanbacus1704]

643th Approved !!!

[@daveriley6310]

I'm an enthusiastic proponent of electric propulsion and this airplane looks very good. I've worked in aviation for over 50 years, owned numerous airplanes, and I'm presently thinking of converting my VariEze to electric or hybrid-electric. I should add that I've had 6 EVs (including 5 Teslas), 2 PHEVs, and 2 HEVs, so I'm somewhat familiar. Now... Here is a laundry list of why your video comes up way short. Price? Inquiring minds, etc. $349,000. No wonder it's not mentioned. What is 90 kW of power? Answer, about 120 hp. But what, then, is 92 kWh of battery? Most viewers may not know. It's the energy capacity of the batteries, the "electric fuel supply." It's the equivalent of 2.73 gallons of gasoline. But since electric motors are much more efficient than gasoline engines, it is really equal in usable power to approx. 7 - 10 gallons, depending on numerous factors. George Bye says at one point that the battery supplies "that 90 kW of power" and later says it provides "that 3.5 hours of flight time." True, but misleading. It can do either, but not both. Or that battery could provide 200 kW of power, for about 25 minutes flight time with a different motor and controller. This is sort of like someone saying an F-105 can fly Mach 2.5 and can carry 2.2 hours of fuel. Each can be true, but not both. On the Sun Flyer 2, the battery pack providing 90 kW of power would be empty in about an hour, if it doesn't overheat. Or it can, and does, provide 90 kW for takeoff, but an average of just 26 kW of power, which is what the 3.5 hours represents, an average output of 26 kW/35 hp. He implies it again by saying $3 per flight hour. The math says that's also about 26 kWh. The key is understanding the difference between power output expressed in kW (hp divided by ~1.33) and the amount of stored energy carried expressed in kWh (gallons of gasoline x 33.7). Further, the quoted 1,050 fpm rate of climb tells me that the power is likely limited to perhaps 55 kW right after take-off. Which brings us to where this presentation fails. No mention is made of battery thermal management. This is of of utmost importance. Thousands of people bought Nissan Leafs and regretted it. Why? Lack of thermal management and severely degraded batteries. No one should put down $5,000 on a $350,000 flying Leaf unless they relish disappointment, disillusionment and years of lawsuits trying to recoup some of their loss resulting from a hasty, ill-researched purchase decision. Actual speed? Not 135, or 120, or 100. It is 70 knots/80 mph. Yeah. Do the math. 3.5 hours, 250 miles. The only fair commercial transaction occurs between a fully informed seller and a fully informed buyer. If you were making an advertisement, I guess some would say this video succeeded. If you intended this as an interview to inform your viewers, well.... For those who have read this far, let me just add that this company has a heck of a good management team. Lots of experience, accomplishments, drive and know-how. I fully expect that they and their two aircraft will succeed. There is no reason for me to expect that they would sell an electric aircraft with 92 kWh at a price that could attract a cheapskate, underachiever like myself. My hat's off to George and Charlie for leading the way in the commercialization of electric airplanes. Blue skies and tailwinds to you all at Bye Aerospace. Post Scripts: No, I've never had a Leaf. Just lucky that I thought they were butt ugly. I've never had an F-105 above about Mach 1.6, and am not aware of ever meeting anyone who has. It would run out of fuel in about 7 minutes, or so I was told. How about you, Charlie? Ever been much faster than 1.6, other than as a Concorde passenger, maybe?

[@dvsmotions]

So I can fly 400 miles and refuel in 10 minutes. How long to "refuel" the sunflyer?

[@svesom]

You don´t see those Numbers yet at Electric Planes like this. But if you can fly that fast and long as he say, it will not often be the thing.

[@AClark-gs5gl]

How would you refuel?

[@stacyevans1360]

Yes bigger battery however aircraft use more of that 90 kwh motors power than the cars do. Even if the car is lighter the aircraft will use more power to go faster. The subnotes on the video showed that flight time at only 70 kts. I want to see the battery usage at 75% power not 50%

[@ele4853]

This video was made in 2018... Availability? Price?

[@marionette5968]

1 has been built. They may start production next year. half a million dollars.

[@darrenshawn4188]

Jr Aviation Keep the great work! Edit:OMG! JR AVIATION GIVE ME A LIKE...THANKS

[@JRAviation]

Thanks!

[@carrollmcpherson4530]

I am all for electric aviation. Flown, drove, plowed and dozed behind pistons all my life and getting the newest generation of battery tools in hand i have faith that electric propulsion is the future. This video is exciting stuff!! That said, when i hear the words "get your reservation", "only $5,000" my BS allergy goes BERZERK!! Also missing key info like energy density and battery life in hard d#dgets is a real deal breaker.

[@daveriley6310]

Carroll, battery life should be about 1,000 full recharges (which can be 3,000 partial charges between, for example, 52% and 85%). If you think about this as being 3,500 hours of flight time, that's about double the TBO of an O-200 or O-235. Waiting to find out more about their battery cooling system. This is a critical item for Li Ion batteries.

[@carrollmcpherson4530]

@@daveriley6310 Well I just saw your reply But I must say I appreciate you getting back to me.

[@titasui8703]

Can we Charge the battery with the alternator?

[@joereyes8835]

Electric my kind of thing and if I carry folding solar panels with charger hmmm it sound like a good idea in case I land on country side. 😁😁😁

[@CaptainCurt07]

Check Rand Vollmer CFI Dealer for Pipistrel which is a badass motor glider, I’m about to start my training ( student pilot) Zephyr hills Florida and Texas he is owner of Salsa light sport out of Texas. Gliders are cool I can’t wait til I can get one, Awsome guys n I hope u can’t let me fly that bad boy! Are you still training or have your certification glider, we are thinking of moving to AZ rural

[@oluwaseyiorifunmishe4144]

Why do none of these companies ever give us information on the type of electric motor that is being used?

[@macberry4048]

When this plane comes out I hope it gets the Sandy Monroe teardown

[@johnd5805]

Not many will know what you are talking about. haha

[@plomt6]

Cool

[@carlosacorredoira8338]

Did they deliver this plane for you yet?

[@bettytureaud]

It looks like a Lancair Legacy kit with a electric motor

[@davparksoh]

Ok, so what does this e plane cost?

[@timotypietsch7250]

You'se guys are honestly so inspiring.... teen who are making 6 or 7 digits $$$ I want to do what you guys do I would love to work with planes, cars and make a good living out of what you love

[@hombremunoz5143]

soon its mid summer:D

[@laurentpythoud4713]

When you say hello or goodbye to a guy, look at him it his eyes, thats more polite...

[@Varue]

they might be like me where it’s hard to make eye contact due to anxiety or some other mental issue

[@folk.]

flying high is no option - because no heating

[@jamesclapp6940]

HAHAHAHA and there we were at 15500 ft and the dam power fuse blows!

[@Soothsayer210]

why can't they create a plane that runs on Fuel Cell/ Hydrogen technology considering the energy density of compressed hydrogen can be around 100 times than that of the best batteries available today.

[@Justwantahover]

beendone

[@maxsouthoz2932]

So . . . It's 2025. What has happened to the sun flyer?

[@Brady.John87]

I'm a big guy, I couldn't take a passenger lol

[@noogdubyangchannel6598]

Can the builder build an alternator to recharge the batteries for the airplane so the flight no stop .

[@bernardthedisappointedowl6938]

This was informative - but for your British audience, could you cut down a bit on the optimism and enthusiasm and just generally look more bleak? We do love a bit of despair over here - maybe finish every section with a wistful a sigh, and phrase like, "But honestly, why are we bothering? We'll be enjoying ourselves next", ^oo^

[@GMoneyMacFresh]

Could you imagine if Tesla made the batteries and you could supercharge your airplane....

[@chipb4617]

Sounds great. Unfortunately, there is no supercharger waiting at the airport you land at. How are you going to charge it back up? This is a nice toy, but its not practical.

[@PistonAvatarGuy]

So you can (supposedly) cruise at highway speeds for a couple hundred miles? Why not just take a car?

[@Justwantahover]

130mphcar?

[@Justwantahover]

car60mph plane120mph

[@jackhawk8952]

Unfortunately making the batteries puts out way more toxic chemicals than the entire lifecycle of a fuel engine and that's not including the disposal of old batteries... Just doesn't make any sense.. I fly electric rc jets and planes and deal with all the problems.. They catch fire very easy and if crashed they explode into a extremely hot fast burning fire just ike the cars do but airplane crashes are guaranteed to burn you up can't dump battery fuel before a crash landing.. I would think a clean burning natural gas engine would make more sense than electric.. Last thing you you need is a battery fire at 10,000 feet because of a bad cell... Just saying .. Just bring a parachute or burn alive... Lipo batteries are extremely dangerous I've had several fires i won't even fly my rc planes in the summer because im scared to start a wildfire...

[@kazardomain]

now its pandemic what the future hold for aviation industry.

[@surplusstock8778]

koenigsegg produce a 330hp axial flux motor lighter and more efficient than that one,they should use that one.

[@unkykevy]

wow

[@nitwit652000]

Did you get the plane yet?

[@terriecotham1567]

All things change the electrical aircraft is becoming of age with new avionics systems like the G3 X that gives pilots the cockpit that once fighter pilots looking a school / College in Texas the flight feels in 1980/81 for 40 hours of time was right around $1500 and the same course today at 25 flights hours is right at 6K for the privet pilot course . The electric aircraft could bring down the cost and put it in reach of more people unlike the cost of becoming a 250 hour MEL flight instructor and owing alone in the 25 K range just to become a pilot , when A& P 's or avionics tech and making more to start out and with a much lower cost for school in the 4-6 K range Electra aircraft may someday put an aircraft in the yard of the common man as they say and with a 100 to the 250-mile range at speed of 150 mph it ease to commute to work in some states where the weather is 99% of the time clear., The smaller aircraft could let small airports located in places that today would be in possible due to the noise of engines, it could be no trouble for some business to have grass or paved landing stripes With the up to date avionics and flight computers, traffic could flow in and out with ease and the fact that if one should need to make an off airport landing many of those aircraft could ease land in 100 yards or less and with no fuel the risk of fire is reduced as well At one time the best minds of the time looked at flying from the US to Pairs a fools dream some said the AC - System of current would never work just as some said overnight shipping was a fool ideal as well and now compiles like Fed- X or DHL rock the world sending parts overnight to save a life or to the aircraft that's AOG Thanks for posting for the skies of tomorrow will bring so many new advances to the world after all lots of those who see strange UFO'S have their feet sold on the ground who knows whats in the dark hangers of the USA or small shops were the craze old nut case is working on just like the two craze bicycle guys building a flying machine that 99% of the people would consider a crackpot ideal at best

[@kenbellchambers4577]

I hope an American company can make a better motor and controller, the electric race is underway. Now we need a replacement for a twin engine jet. This is urgent because high altitude heat emissions are very disruptive to the climate.

[@archivaldo4111]

I need a job i would love to be hired by you guys :(

[@kneedeepinbluebells5538]

Cost Is A HUGLY Important Piece Of Information Right ? So ...

[@Mike-01234]

What's that cost $300k? Chinese will figure out low cost version of this eventually.

[@davidfalgout7304]

the public just needs jobs like you have. 1/2 million bucks for a car and plane... sweet gig. Must have a dad in politics that has connections in china.

[@markturner7459]

hardly in depth...lot of questions not asked!

[@captlarry-3525]

The real savings to owner and users will be in lower maint costs and fuel.. both of which are extreme. What the cost is and how that amortizes may continue to make this a rich mans game..when it should not be. battery packs from wrecked leaf cars and one of those wasting away Grumman airframes.. and off we go !

[@weltfremd]

no more crashes due to carburetor iceing