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Former Vahana team members launch Airflow to develop eSTOL aircraft

Five members of the team that developed Airbus’s Vahana eVTOL have launched a new company, Airflow, to develop electric short take-off and landing (eSTOL) aircraft for the aerial logistics market.

Airflow founding team
Airflow’s founding team includes, from left, Peter Kalogiannis, Geoff DuBridge, Don Fung, and Marc Ausman. Not pictured is flight controls consultant Robbie Bunge. Airflow Photo

Airflow’s co-founders include CEO Marc Ausman, formerly chief strategist on the Vahana program; Peter Kalogiannis, who was Vahana’s aircraft integration and test lead; flight software engineer Don Fung; senior sub-scale vehicle engineer Geoffrey DuBridge; and flight controls consultant Robbie Bunge.

According to Ausman, who lays out the case for eSTOL aircraft in a June 9 blog post, the co-founders’ experience with the Vahana technology demonstrator made them “keenly aware of the challenges and compromises inherent in current eVTOL designs,” driving them to find an alternate way to address the urban air mobility market.

They decided that, for use cases where at least 300 feet of runway is available, eSTOL aircraft offer lower development costs, operating costs, and noise. Because eSTOL aircraft can be certified under existing Part 23 regulations, they also pose less certification risk than eVTOLs, which must be certified using a more complicated and expensive process that is not yet fully defined. Airflow estimates it can develop and certify an eSTOL aircraft for around $200 million, versus more than $700 million for an eVTOL aircraft.

Airflow eSTOL concept
Airflow’s eSTOL concept includes distributed electric propulsion, a “Virtual Tailhook” pilot assistance system, and an aerial operating system that allows operators to manage aircraft in real time. Airflow Image

Based in the San Francisco Bay Area, Airflow is initially targeting the middle-mile logistics market with an aircraft that can carry one pilot and 500 pounds (225 kilograms) up to 250 miles (400 kilometers). Airflow says its eSTOL will be able to operate in poor weather and take off and land in just 150 feet (45 meters), enabling the transfer of time-sensitive cargo directly between warehouses throughout the day and night. The company predicts its airplanes will be four times faster than trucks, with a third of the hourly operating costs of comparable helicopters or eVTOLs.

“The demand for same-day e-commerce continues to rise, and we’re building a new low-cost aerial capability to enable that growth,” Ausman stated in a press release. “Our approach from the beginning is to focus on a simple aircraft design with well-defined new technology.”

Airflow isn’t the only company that has decided that eSTOL aircraft represent a more promising near-term play than eVTOLs. Other eSTOL developers include Pyka, which is already flying its airplanes in crop-dusting operations in New Zealand, and the startup, established by Aurora Flight Sciences founder John Langford.

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  1. This e stol cargo aircraft would be ideal for
    DHL. FEDX and UPS and other express
    Parcel companies I don’t think any major
    Airlines would have any interest.
    Now question how large is the cargo hold and
    What type of cargo Can it carry Short trips
    Like heathrow to Gatwick for example and
    Bournemouth to Southend .

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