ConceptTargeting type certification (SC-VTOL)Tilt-rotorHybrid
AltoVolo
Sigma
2-seat hybrid HyperTOL, 4.5 m span
UK hybrid 'HyperTOL'. Targets: 2 seats, 220 mph top speed, 510 miles hybrid. £1,000 holds a launch-edition slot. Not a pure eVTOL: an onboard APU extends range. Quarter-scale prototype flown; full-scale demonstrator in build — not type-certified.
- Range
- 510 mi hybrid / 260 mi electric (AltoVolo target)
(varies with speed, reserves, and how the pilot flies the mission).
- Payload
- 270 kg
- Cruise
- 165 mph (AltoVolo estimate)
(chosen by the pilot, and traded against range and endurance).
- Top speed
- 220 mph
- Flight time
- 45 min hover
(varies with the speed the pilot selects and the reserves kept for the mission).
- Price
- From £863,200 (excl. shipping & taxes)
- Empty weight
- Not published
- MTOW
- 980 kg
- Ceiling
- 10,000 ft
- Seats
- 2
- Battery / fuel
- Hybrid-electric: batteries (400 Wh/kg) plus an onboard APU range extender (fuel type not published); not all-electric
- Size
- 4.05 m long × 4.9 m wide × 1.58 m high (2.2 m packed width)
- Charge
- 22 min (300 kW)
- First flight
- Not yet flown at full scale (quarter-scale prototype flown; full-scale demonstrator due end of 2026)
- Entry into service
- Not in service
Full figures
- Cruise
- 165 mph (AltoVolo estimate); 220 mph top speed
- Hybrid range
- 510 miles (821 km) target
- Electric range
- 260 miles (418 km) target
- Empty / MTOW
- Not published / 980 kg
- Payload
- 270 kg
- Charge
- 22 min on 300 kW
- Width
- 4.9 m
- Size
- 4,050 mm long; 2,200 mm packed width; 1,580 mm high
- Wing span
- 4.5 m, tilting motors and wings
- Hover time
- 45 min
- Noise
- 65–70 dB(A) at 100 m on take-off (AltoVolo estimate)
- Powertrain
- APU range extender; thrust from the electric motors only
- Pilot
- Sport Pilot licence (25 hrs training) minimum for Launch Edition
- Launch Edition
- 100 units; £1,000 reservation
For
- 510-mile hybrid range
- Two seats plus luggage
Against
- Full-scale aircraft not yet flown — figures are targets
- Not type-certified yet