Preliminary — engineering working estimates

Specifications

Every figure below is a conceptual working target, not a validated performance guarantee. Where a number is aspirational or still being walked back to a more conservative estimate, it's labeled that way.

Vehicle

Configuration	Two-seat hybrid VTOL / air-cushion vehicle
Footprint	≈ 6.0 m × 3.0 m
Max take-off weight	≈ 700 kg (target)
Occupants	2
Main lift	2 mechanically-driven, fixed-pitch rotors, ≈3.0 m each
Propulsion	2 gasoline ICEs + chain transmission + electric bus
Service ceiling	≈ 3,000 m / 10,000 ft

Performance

Normal cruise (flight)	≈ 140–150 km/h (preliminary)
High-speed cruise	≈ 150–160 km/h (aspirational)
Max / boost	≈ 180–200 km/h (preliminary)
Standard mission range	≈ 180–220 km (working estimate)
Long-range objective	≈ 300 km (≈130–180 L fuel)
Surface (auxiliary) cruise	≈ 30–50 km/h
Surface (auxiliary) max	≈ 50–60 km/h

On the 300 km objective

Why this number is smaller than it used to be

The long-range objective reflects a deliberately conservative fuel-consumption assumption — roughly 35–50 L per 100 km — adopted after an earlier, more optimistic estimate of 25 L per 100 km was walked back. That kind of correction is exactly what "preliminary" means on this page: numbers move as the engineering gets more rigorous, and we say so when they do.

Validation work — CFD, engine selection, and a full mission recalculation — is scoped in the current engineering plan. See Flight Mode for the mechanism behind these numbers, or get in touch if you want more detail than fits on this page.