In this episode of our ‘Sustainability in the Air’ podcast, Kyle Clark, Founder and CEO of BETA Technologies, speaks with SimpliFlying’s CEO Shashank Nigam about the realities of bringing electric aircraft into operation.
The conversation explores the company’s engineering philosophy, its vertically integrated approach to aircraft development, and the early markets where electric aviation is beginning to gain traction.
BETA has emerged as one of the most closely watched companies in the electric aviation sector. Beta’s ALIA aircraft platform includes both conventional take-off and landing (CTOL) and vertical take-off and landing (VTOL) variants designed to transport passengers or cargo over several hundred miles.
The Vermont-based manufacturer completed its initial public offering in 2025 and counts partners such as United Therapeutics and UPS among its early customers. GE Aerospace invested about $300 million in the company while it was private, and Amazon recently disclosed a roughly 5.3% stake.
Clark argues that success in electric aviation depends on optimising the entire system rather than individual components. That philosophy has allowed BETA to develop many core technologies in-house, including propulsion systems, batteries and charging infrastructure, while targeting early applications in cargo, medical logistics and defence before expanding into passenger operations.
Here are the key highlights of the conversation:
The founding story: from college thesis to Martine Rothblatt’s backing (1:54)
The systems-level economics of electric flight (16:12)
Strategic market entry: military and medical applications before urban air mobility (19:59)
Scale-up and industrialisation: building conforming aircraft at volume (26:54)
Defence applications delivering real revenue (31:37)
The unexpected charging infrastructure business (39:15)
The team member culture (44:51)
Rapid fire! (48:19)
Keep reading for a detailed overview of the episode.
How battery economics can make electric aviation viable
Since batteries are roughly 30 times less energy-dense compared to conventional jet fuel, critics often argue that electric aircraft cannot work at a meaningful scale. According to Kyle Clark, this framing misses the broader engineering reality.
“People often come to me and say, ‘Hey, electric airplanes don’t fly because batteries are too heavy.’ I say, ‘Too heavy compared to what?’” Clark says. He points to the dramatic weight difference in propulsion systems: “The Lycoming gas engine is 550 pounds. Now we can go pick up our electric motor. It’s a hundred and change. So you’ve reduced the weight of the motor by about five times.”
Combustion engines convert jet fuel into useful propulsion at roughly 30% efficiency, whereas battery-powered electric propulsion systems can reach around 95% efficiency. In combustion engines, a large portion of the fuel’s energy is lost as heat. Dissipating that heat requires additional systems and airflow around the aircraft, which increases the drag and reduces overall efficiency. Electric propulsion avoids much of this thermal loss, allowing aircraft designers to reduce drag and optimise the aircraft more effectively.
“When you factor all that in, you end up with a lift-to-drag ratio and propulsive efficiency that are significantly better, about twice as good on leftover drag and roughly three times better on efficiency. At that point, you’ve recovered about half the gap between gasoline and batteries.”
The result: BETA’s aircraft can fly several hundred miles, roughly half the range of an equivalent conventional aircraft. According to Clark, that still opens up what he describes as “a ton of missions”, while delivering a significant economic benefit: “From a systems perspective, the range is still meaningful. The real kicker is that we do it at about a fortieth of the cost of energy.”
BETA has also structured its business model around batteries. The company expects to sell its aircraft for about $4 to $6 million, depending on the configuration, but anticipates significant additional revenue from battery replacements over the aircraft’s lifetime. “Over the life of the airplane, you can sell more than $13 million worth of batteries,” Clark notes.
This recurring revenue model gives BETA long-term customer relationships while steadily improving aircraft performance. “The secret sauce is that every time you release a new battery, performance goes up,” Clark explains. “Unlike any other aircraft, the paradigm has flipped. The worst performance you’ll get from the airplane is on its first day. By the time you retire it, its performance will be significantly better.”
4 takeaways from the conversation
1. Starting with the right markets
BETA has pursued what Clark characterises as lower-friction entry points, prioritising applications with fewer regulatory and infrastructure barriers, including military operations, medical logistics and cargo.
“Flying in and out of Manhattan, Chicago, or Dallas from the suburbs requires municipal approvals,” Clark explains. “It also requires airspace changes and the construction of new helipads and vertiports,” he adds.
Hospitals and military bases, by contrast, already operate helipads and aviation infrastructure. That makes them natural early adopters.
Cargo operations remove another barrier: public acceptance. “Cargo and logistics removes the variability of convincing thousands of people to get on the airplane, because you only have to convince one person, the loadmaster or the CEO of the cargo company,” Clark shares.
The company is also sequencing its certification strategy. BETA is developing both conventional take-off and landing (CTOL) and vertical take-off and landing (VTOL) versions of the same aircraft, but Clark sees advantages in bringing the CTOL version to market first: “The certification path is easier. We can get type certification in a step-wise manner and start bringing in revenue earlier than our competitors. And it doesn’t require any changes to the airspace.”
The strategy allows BETA to begin operations in existing aviation environments before expanding into more complex urban missions.
2. How BETA built its charging solutions
BETA’s charging infrastructure began as a practical solution rather than a standalone business strategy.
“We wanted to do a lot of flying, and nobody made a charger for high voltage, high rate, level three charging. So we went out and built it,” Clark recalls.
After developing the system for internal use, Beta realised it would need to certify the equipment in order to deploy it widely at airports, which led the company to refine it into a commercial product that could support broader operations.
Demand quickly followed. Operators and airports began asking to purchase the chargers themselves, turning what began as an internal tool into a commercial product. The network now “goes almost all the way up and down the East Coast,” Clark says, with expansion underway across the United States and internationally. “We’ve also put our foot down in a couple of places internationally. We’re deploying charging systems for Abu Dhabi Airports.”
The charging system operates on a standard agreed by the industry through the General Aviation Manufacturers Association (GAMA). The architecture is based on CCS charging technology, with a partitioned software layer that enables additional data transfer for aircraft systems. It supports currents of roughly 500 amps and voltages of up to 1,000 volts.
“You can charge a car or a package delivery van… UPS can charge its van and its airplane in the same place. It’s all designed to be thoughtful, interoperable, and multimodal.”
Clark believes that BETA’s charging solutions could become just as strategically significant as its aircraft. “I think at the end of the day, the charging network may be as valuable as the aircraft because they’re going out fast, especially this year.”
3. Defence applications and early revenue
Defence has quietly become one of BETA’s most important early markets. Clark says the company has secured “a large number of defence contracts,” though it has spoken about them publicly far less than many of its competitors.
eVTOL aircraft could offer several advantages in military operations, and BETA’s design aligns with key military requirements such as low cost, low thermal signature, and reduced noise, says Clark.
For longer-range missions, the company is working with GE Aerospace on hybrid-electric configurations using turbogenerators. These systems will extend the range of the aircraft while retaining the operational benefits of distributed electric propulsion.
Clark says the defence work is already translating into revenue, and contrasts their approach with competitors who focus heavily on announcements. “When I look at our competitors’ fact sheets, they may have a lot of pretty pictures. But they aren’t recognising revenue, which means they aren’t delivering a valuable product. That’s what we’re doing.”
4. A culture built around “team members”
BETA’s organisational culture differs from that of many aerospace companies. Every employee carries the title “team member” regardless of role, and all receive equity in the company.
For Clark, the philosophy is about reinforcing ownership. “I want everybody here to know that this is their business and they’re willing to do any job,” he says. “Frankly, I don’t give a crap what your title is. If something needs doing, you better be willing to do it.”
BETA also encourages employees to experience aviation directly. Anyone in the company can learn to fly, and many team members begin training as student pilots.
Coordination across the company happens through regular meetings held three times a week, where every team outlines their contribution to quarterly and annual goals. Clark describes it as maintaining focus across a complex organisation: “You don’t lose focus. You say, this is your contribution to focusing that laser beam down the way.”
The approach reflects the same systems-level thinking that shapes BETA’s engineering philosophy: aligning many small contributions toward a single, clearly defined goal.
As electric aviation moves from concept to deployment, BETA’s approach offers one possible blueprint: combine engineering optimisation with pragmatic market entry. The coming years will determine whether that strategy can translate early momentum into a scalable new category of aircraft.
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