Heart Aerospace's X1 completes maiden flight as world's largest electric aircraft
Los Angeles-based Heart Aerospace flew its 30-seat X1 demonstrator for 27 minutes on battery power alone, marking progress toward commercial hybrid-electric aviation.
What to know
- Heart Aerospace's X1 demonstrator completed a 27-minute maiden flight in August 2026, setting a record for the largest battery-electric aircraft ever flown, with a 106-foot wingspan and 30-seat capacity.
- The company's commercial goal is the ES-30, a hybrid-electric regional aircraft targeting 2031 service with 125 miles of pure electric range and 500 miles total hybrid range; United, Air Canada, and JSX have already expressed interest.
- The distinction between the all-electric X1 and the hybrid ES-30 caused confusion in initial coverage; the hybrid powertrain is designed primarily for diversions and contingencies when aircraft cannot land at their intended destination.
- Battery technology improvements and the aircraft's 125–500 mile range position it for short-haul and regional markets, particularly in fragmented geographies like Scandinavia and island routes, though questions remain about competitiveness on high-volume routes.
The dispute Whether the hybrid design is a practical engineering necessity or an admission that battery technology cannot yet deliver the range and performance required for commercial aviation. · positions read across 242 posts and comments
This is genuine progress: battery technology is improving rapidly and short-haul electric aviation fills a real market gap for regional flights and island-hopping routes.
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“Batteries are rapidly improving (on many metrics, but the relevant one here is increasing in energy density). Give it a couple doubling-times though (5 years total?) and it will be.”
gpm · Hacker News
The hybrid compromise undermines the environmental benefit and raises economic questions; the turbogenerators negate carbon savings and the $5 electricity claim doesn't pencil out mathematically.
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“When they did the actual flight I did the math on the $5 worth of power claim, and it just doesn't pencil out even at the lowest power rates in North America.”
dghlsakjg · Hacker News ↗
The hybrid design has real engineering advantages: electric motors are more reliable, offer faster throttle response, and allow fuller power on takeoff even with one engine out.
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“The higher reliability of electric. Losing an turbine engine doesn't mean asymmetrical thrust. Plane still flies normally. Losing an engine on takeoff you still have full power.”
Gibbon1 · Hacker News ↗
The 125-mile electric range is too limited for any meaningful market; rail infrastructure would be far more efficient than expensive short-haul electric aircraft.
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“I'm not sure how building an electric aircraft would help with this. Are people going to suddenly switch to commuting by plane? Fixing America's commute problem is primarily an urban planning one.”
infotainment · Hacker News ↗
“The airplane will also include a reserve-hybrid configuration, consisting of two turbo generators powered by sustainable…”
Heart Aerospace, Company documentation · Hacker News comment
Heart Aerospace Aircraft manufacturerAnders Forslund Heart Aerospace Founder and CEOUnited, Air Canada, JSX Airlines
The record 4 articles and posts · last 30 days
What people are saying 24 voices from 2 sites · best of 242 · verbatim
- Can the ES-30 compete economically on high-volume routes like Melbourne-Sydney, or is it limited to niche regional markets?
- Will the turbogenerators be rarely used in practice, or will diversions and headwinds force frequent reliance on fossil fuel power, undermining the environmental case?
- Sep 4
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Landing weight limits are less than takeoff limits because of the extreme stress it puts on the landing gear. This is why planes that have an issue right after takeoff often need to dump tens of thousands of gallons of fuel before they can land.>Aircraft have two main types of weight limits: the maximum takeoff weight is composed of dry operating…
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The big problem with autonomous airplanes is they still require airports. I don't have a runway in my backyard, and I can't build one because someone else has a house there. My closest runway is about 20 minutes away, and then once I get to the far airport it is another 20 minutes to get where I'm going. This is why commute by airplane will always…
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> Unless they have a whole new airport and flying experience, I don’t think a lot of people are going to fly just 125 miles.There are a lot of "island hopper" and bushpilot mini airlines in the world. The current world record is a route in Scotland that, on good days, takes less than a minute of flight time [1].It is much much easier to supply…
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125 miles as the crow flies is less than three hours (two hours is a little tight) of driving for most trips of that distance people make!People tend to have friends and family they want to visit regularly. So they try plan their life around not moving too far from where they grew up. That means people won't even look at a move of 125 miles away…
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You're making a lot of assertions without citations here.If I look at a BYD at my local dealership, and compare it to a comparable spec German car (I live in the UK, so tariffs are not the thing shifting the needle here), I can see where the cost savings are and the trade-offs.I don't think they're artificially more affordable. I just think…
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Not much airport shenanigans in the small island hopping nations and the fjords this is aimed at. 125 miles in 2 hours is assuming flat, straight, high-speed, low-traffic roads. Sure, people might not use these to fly SFO → LAX or back, but they likely will use them to go ABZ → LSI, and the "check-in and security shenanigans" are, errr, quite…
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The 100kwh number was based on a rate of electricity that is 1/6th the average cost of electricity in the area they did the flight. Even the absolute cheapest rate in that region is 4x the price I used. The price I quoted was a little less than the cheapest published electrical rate in North America, which isn’t in the United States.So you can…
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There are plenty of legitimate criticisms of Chinese policy, but you should probably reread your arguments and check for coherence.Chinese EV trucks make no economic sense even though they're 30% of China's fleet but also they're only investing all that as a trojan horse even though they use them almost exclusively domestically, plus the old…
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> In comments to Sweden's government regarding the EU Net Zero Industry Act, Heart wrote that: “The regulatory framework and access to financing is very attractive in the US.”> Heart warned that Europe needed to respond to the U.S. Inflation Reduction Act if it wanted: “to retain technology companies like Heart within the EU”2 years later:> "We…
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I'd dispute they do any of those better, they stole the IP, then used public funds to make cheaper versions in the hope of leading the markets, including by being artificially more affordable while there is any competition. Besides electric cars and solar, it's very debatable wether those will actually be ecological in the end. For ex. they are…
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If it's a pro then they'll be sitting in the back seat so you're in the front seat the same as you will be when you fly solo.Here's a video of me taking a student for their first lesson:https://www.youtube.com/watch?v=RDZN21xzsRoThat's in a DG1000, actually this exact one…
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I still don’t see what the problem is. The entire flight was likely just a few patterns and your earlier figure of 100 kWh (let’s assume they get their electricity for cheap) is already a serious amount of energy. It takes 100 kWh of energy to lift a 10.4ton object by about 3.2 km, so we’re obviously in the same ballpark for the maiden flight, and…
- Sep 3
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> That being said, I wouldn't be surprised if they didn't start the generators during critical phasesI somewhat doubt that. Part of the advantage of the design is that the generators don't need to be sized as big enough to power take off, climb and a potential go-around on landing. They only need to be sized as big enough for cruising.So powering…
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Doing some math. Regional jets get somewhere around 45.9 seat miles per gallon (1). So 30 seats, going 125 miles would take around 80 gallons of jet fuel. This is likely low because all the jets listed are bigger and likely flying longer flights that are more efficient but just go with it.Jet fuel has a specific energy of 12 kwh/kg and a density…
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I didn't get that far in the video but from where I live (NYC) two hours gets you to a lot of very common travel destinations:Boston, Massachusetts (1h) Washington, D.C. (1h) Philadelphia, Pennsylvania (45m) Baltimore, Maryland (1h) Toronto, Ontario (1h 45m) Montreal, Quebec (1h 30m) Cleveland, Ohio (1h 45m) Pittsburgh, Pennsylvania (1h 15m)…
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[0:01] This is the largest electric airplane ever to fly. It's got a 100-ft wingspan, a takeoff weight of 25,000 lb, and the electricity to get it off the ground cost just $5. Its successor, the ES-30, will fly up to 125 mi on battery alone, up to 500 mi as a hybrid, and recharge in about 30 minutes. >> It's the world's largest electric aircraft…
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In sailplanes we add up to around 200 litres of water to wing tanks in single-seat gliders (empty weight typically around 280kg) to improve the high speed performance (typically up to 270 km/h these days) and ability to fly comfortably in turbulence.It's surprising what you can fly formation with, even without an engine [1]…
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You can't convert between kWh and kW. 100 kWh = 6 MW for one minute... so there is plenty of power if the flight is short enough. They said the plane has 4 Tesla's worth of battery power, let's assume they are 80KWh packs then that's 320kWh that they could use for a short flight. That's a fair amount of juice, they definitely won't be flying long…
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You can fix the density problem, at least on one end, with park-and-ride lots; every successful commuter / regional[3] rail service puts parking next to the suburban train stations. You just need a dense corridor for people to go to.For people commuting from suburb to suburb you put bus connections at the train station. Buses are lower capacity…
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Turbine powered helicopters can appreciate in value if demand picks up because the tech doesn't move that quickly, as can GA aircraft that are already old because they're all cheap and rudimentary to start off with. (The supposed appreciating asset tends to cost a lot more than the asset appreciation to maintain though...)Fixed wing commercial…
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Stupid in those that lack imagination.I happened to be in Plattsburgh the day of this flight, on my way to a fishing trip on the lake. They used that facility for the long former SAC base runway, but I think it’s also appropriate given the nature of the NY North country that an ultra low operating cost aircraft would see flight there.The death of…
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USA's lacking rail commutes come down to the fact that America's leaders made the deliberate decision to destroy its own rail network and force people onto planes. The electric range of this aircraft is 125 miles[0], which is at the low end of the range where conventional intercity rail is time-competitive with the plane. A bullet train would…
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Is this EV or Hybrid?The founder seems to sneak in the word "hybrid", around 1m30 mark in the video below.https://youtu.be/nM86DBOqgPM?si=5unXLmPxk6M_kmuN&t=86Note: not being negative, I just want to ensure I understand correctly since the title might imply something else.Update: confirmed, it does use aviation fuel.> "The airplane will also…
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Aircraft design is very intricate. Change the CG, break the whole system.Fuel is often placed in wings because adding/burning fuel from your center of lift means your CG doesn't significantly change through a flight and you spend less on pumping fuel within the aircraft. With batteries, you are looking at a constant mass from the beginning of the…