The Future of Advanced Air Mobility

ZEVA Aero is developing the distinctive, disc-shaped Zero eVTOL. It is intended to operate in conjunction with the company's SkyDock unit that would allow it to be parked and accessed on the sides of buildings.

ZEVA (which stands for Zero Emissions-Electric Vertical Aircraft) was exhibiting as part of the Washington State stand in the U.S. Pavilion of the Dubai Airshow in 2019. There, CEO Stephen Tibbitts told FutureFlight that a full-scale version of the craft had started flight testing. He said the all-electric Zero would ultimately fly at up to 160 mph and have a 50-mile range, doubling within 10 years. Tibbitts said the craft is being flown "with a dummy right now," but with a human on board the aircraft will include a whole-vehicle parachute. Also, the craft is tethered for its initial flight tests. "We need to get a few more tethered tests under our belt first," said Tibbitts.

He also said that the company "would love to have a partner, both for manufacture and for funding," but his focus at present is "to finish our application for NASA's Grand Challenge."

The price of the Zero is currently pegged at $225,000, and Tibbitts said the company is accepting $5,000 deposits from interested buyers.

Tibbitts said his interest in eVTOLs started in 2004 when he flew a Cessna 172 but discovered that, around Seattle, many of the airfields had "vanished." 

The conclusion he came to was that if general aviation is going to have a future, it is going to have to change—and in 2005 Tibbitts said he wrote a paper for NASA proposing eVTOLs as the future. Thus, he sees himself as one of the visionaries behind the current boom in interest.

On September 17, 2020, ZEVA Aero announced a merger with Fab Lab LLC, gaining manufacturing assets including CNC machines, electronics lab equipment, computing resources, and carbon fiber printing capabilities. Having taken over the leasehold of the acquired company's facility, ZEVA also gains the revenue from Fab Lab's existing manufacturing contracts.


Our objective assessment of this program’s probable success.

FutureFlight assesses the probability of success for a new aircraft program by considering the following criteria:

  • Total investment funds available in proportion to the anticipated cost of getting an aircraft certified and in service
  • A company’s in-house capability (in terms of numbers of engineers, technical staff, and customer support teams)
  • The past experience of the company and its senior leadership in developing aircraft
  • The caliber and past experience of key program partners
  • Whether key aircraft systems have been selected and are available for use
  • Whether the preliminary design review has been completed
  • Whether the design for the full-scale prototype has been completed
  • Whether the type certification process has been formally initiated with an appropriate regulator
  • Whether the company has achieved a first flight with a full-scale prototype
  • The number of hours logged in a flight test program
  • Whether type certification has been achieved
  • The number of orders and commitment received for the aircraft
  • Whether the company has adequate facilities to begin series production of the aircraft
Our Methodology

The disc-shaped design and plans for docking the aircraft on the sides of buildings seems very ambitious. Until a clear development timeline is published and it has serious backers and orders, it is hard to determine the chances of the Zero coming to market.

ZEVA Zero Models

Zero Specifications

local vtol Lift + Cruise


  • Passenger Capacity
  • Range
    50 mi
  • Cruise Speed
    160 mph
  • Powerplant Type
  • Power Source
  • Endurance
  • Max Altitude
  • Takeoff Distance
  • Landing Distance
  • Empty Weight
  • Payload Weight


  • Length
  • Width
  • Height
  • Wingspan

Zeva Aero's disc-shaped, single-seat eVTOL would transition from vertical to horizontal flight by tilting the entire disc-shaped fuselage.

Key Personnel

Stephen Tibbitts
Stephen Tibbitts

Chair, Chief Executive Officer (CEO), Founder