AltoVolo has introduced the Sigma, a hybrid electric vertical take-off and landing (eVTOL) aircraft designed for personal use, capable of taking off and landing directly from residential properties without the need for traditional vertiports or terminals. This innovation aims to provide point-to-point transportation, allowing owners to utilize spaces such as driveways, rooftops, and yachts for operations.
The Sigma features a patent-pending tilting electric jet propulsion system that employs battery power for takeoff and landing, while utilizing liquid fuel for extended flight ranges.
The aircraft boasts a flight range of up to 510 miles (820 km), a cruise speed of 220 miles per hour (354 km/h), and a payload capacity of 270 kilograms. It can accommodate up to three passengers within its 4.8-meter-wide airframe, which has a total weight of 980 kilograms.
Safety measures include the ability to maintain stable flight following the failure of one jet propulsion unit and the integration of a ballistic parachute system for emergencies. Noise emissions are reportedly reduced by over 80% compared to conventional helicopters, making it suitable for use in noise-sensitive areas.
AltoVolo plans to commence operations of the Sigma in 2025.
News & Related Coverage
Context & Background
The development of personal eVTOL aircraft like AltoVolo’s Sigma represents a significant shift in urban air mobility, aiming to provide more accessible and flexible transportation options. Traditional eVTOL designs often rely on established infrastructure such as vertiports and terminals, which can limit operational flexibility and increase costs. By enabling takeoff and landing from personal properties, the Sigma addresses these limitations, potentially accelerating the adoption of eVTOL technology in urban and suburban settings.
AltoVolo’s approach aligns with broader industry trends focusing on hybrid propulsion systems to extend flight ranges and reduce environmental impact. The combination of electric power for critical flight phases and liquid fuel for longer distances offers a practical solution to current battery limitations, balancing performance with sustainability. As the eVTOL market continues to evolve, innovations like the Sigma are poised to play a pivotal role in shaping the future of personal air transportation.
In This Story
AltoVolo
The London-based startup Alto Volo, is an aerospace startup specialising in the development of hybrid electric vertical take-off and landing (eVTOL) aircraft designed for personal use, aiming to revolutionise urban air mobility by enabling operations from residential properties.
Sigma eVTOL
The Sigma is AltoVolo’s hybrid eVTOL aircraft featuring a tilting electric jet propulsion system, designed for point-to-point personal transportation with the capability to take off and land from various surfaces, including driveways and rooftops.
