The two-passenger SD-05 has an MTOW of roughly 3,100 lb.
While much of the emerging eVTOL industry has shifted toward larger winged aircraft designed for longer-range operations, SkyDrive is doubling down on a smaller multicopter that it believes is better suited for the dense urban environments of East Asia.
In an interview with Aviation Week, Arnauld Coville, SkyDrive’s chief technology officer (CTO), said he views the two-passenger SD-05 as a short-range urban connector designed to complement existing rail and metro networks.
“The market is there,” Coville said. “If you look at Asia, the connection between cities is done by high-speed rail. Instead of competing with the Shinkansen [high-speed train] in a regional range, we complement the Shinkansen.”
Coville, a 30-year aerospace and aviation industry veteran, joined SkyDrive after several years at German startup Volocopter, another multicopter-focused eVTOL developer, bringing with him lessons learned from one of the industry’s earliest pioneers. He said SkyDrive’s strategy is shaped both by those experiences and by the realities of operating in Asian megacities such as Tokyo, Osaka, Bangkok and Jakarta.
Unlike larger lift-plus-cruise or tiltrotor aircraft under development by U.S. companies like Joby and Archer, SkyDrive’s multicopter architecture prioritizes compact size, low disk loading and vertical-flight performance over longer range.
Coville argues those tradeoffs make the aircraft better suited for operations inside dense cities, where takeoff, landing and hover performance are more important than long-range cruise efficiency.
“If you want to be in the city, the most difficult part is the vertical flight,” he said. “The access to the city is given by the low disk loading.”
The SD-05 has a maximum takeoff weight (MTOW) of roughly 3,100 lb., compared with larger aircraft like Joby’s S4 and Archer’s Midnight, which have MTOWs of 5,300 lb. and 6,500 lb., respectively. Coville said that lighter weight and lower disk loading in vertical flight will allow the aircraft to use existing helicopter pads and rooftop infrastructure that may not support heavier vehicles.
In Japan, many buildings already feature rooftop helipads because of fire safety regulations. Coville said SkyDrive’s aircraft could use many of those facilities without major reinforcement, allowing it to operate from many more locations than rival developers.
The strategy also reflects skepticism about the technical and certification complexity associated with winged eVTOL designs that transition between hover and forward flight. Coville, who previously worked on Volocopter’s lift-plus-cruise VoloConnect aircraft, said that he thinks the industry is underestimating the challenge of validating failure cases during transitions.
“Doing the transition is relatively easy,” he said. “The difficult part is to understand all failure cases and how to recover the aircraft during this transition. This is where the architecture becomes much more complex. It’s not only a flight control challenge, but also a certification challenge.”
At the same time, Coville said SkyDrive has attempted to apply lessons learned from Volocopter’s development experience, particularly around organizational growth and manufacturing discipline. SkyDrive developed its aircraft from concept to first flight in roughly 20 months, while using about half the funding consumed during comparable work at Volocopter, he added.
“One key lesson was to avoid growing too fast,” he said. “The increase of cash burn rate is higher than the acceleration of the schedule. Adding people does not automatically make the certification process move faster.”
The company is also leveraging a manufacturing partnership with Suzuki, which serves both as an investor and industrial partner. SkyDrive’s prototype aircraft are being built at Suzuki facilities using dedicated Suzuki personnel, while the automaker also helps the startup develop production methods and cost-reduction strategies.
Coville said the transition from Europe to Japan has also exposed him to a different engineering culture, one he described as more holistic and group-oriented than typical Western aerospace organizations. He also said that Japanese industry can be more reluctant to embrace failure during development than their Western counterparts.
“There is a commitment to work that is very different than in Europe,” he said. “There is a fear of failure here that is much bigger than you have in Europe, and clearly in the U.S. It’s important to create psychological safety so people feel secure enough to unleash their creativity.”
Looking ahead, Coville said SkyDrive is focused on completing envelope expansion and flight testing on its current aircraft before transitioning toward certification-conforming vehicles. The company is also preparing for type inspection authorization milestones while advancing certification discussions with the Japan Civil Aviation Bureau and, later this year, the FAA.
“We’ve transformed the company into a more mature aerospace organization,” Coville said. “That means building the safety culture, the processes and the resilience needed for certification.”
Related Content
