Hybrid VTOL / air-cushion vehicle

Helicopter-class range and speed.
Quadcopter-simple control.

Flying Squirrel splits the two jobs a helicopter rotor normally does together. Fixed-pitch main rotors, driven by gasoline engines, handle only lift. Four independently vectored electric fans handle everything else — the same differential-thrust control logic that makes a multirotor drone simple to fly. An auxiliary air-cushion mode lets the same airframe continue at the surface over water, wetland, or snow.

~700 kgMTOW target
2Occupants
~140–150 km/hNormal cruise (preliminary)
~180–220 kmStandard mission range
Flying Squirrel in flight mode over a city at sunset
What makes it different

Two hard problems, split apart

Multirotor drones are simple to fly but battery-limited to short range. Helicopters have the range and speed, but only through a mechanically complex, hard-to-fly rotor system. Flying Squirrel is built to take the better half of each.

Range and speed of a helicopter

Fixed-pitch main rotors, driven by gasoline engines through a synchronized chain transmission, deliver sustained cruise power a battery-only aircraft cannot carry.

Control of a quadcopter

No swashplate, no cyclic or collective pitch to fly by hand. Attitude and direction come from four independently vectored fans — the same logic a drone flight controller uses.

An auxiliary surface mode

A permanent flexible skirt turns the same airframe into an air-cushion vehicle over water, wetland, or snow — a bonus capability, not the core pitch.

No autorotation dependency

A single-engine failure is absorbed automatically by the synchronized transmission. A whole-aircraft ballistic parachute is the last-resort answer to a dual-engine failure.

Owner-operable, by design

Simpler flight controls and a two-engine gasoline powertrain target a cost class closer to a personal aircraft than a certified helicopter.

Engineered in the open

Every performance figure on this site is labeled for what it is — a working target or a validated result — never blurred together.

The idea

"A helicopter rotor does two jobs at once — lift and control — and that's exactly what makes it expensive, complex, and hard to fly. Split those jobs onto separate hardware, and each one gets simpler."

"Fixed-pitch rotors only need to spin and lift. Vectored fans only need to point and push. Neither one needs a swashplate, and neither one needs a pilot with a thousand hours of autorotation practice."

Read how flight mode works
Under the hood

Explore the technology

Five pages, one airframe — from how it flies to how it lands when something goes wrong.

Said plainly

Preliminary, and labeled that way

Every cruise speed, range, and power figure in this concept is a working engineering target, not a validated result. The 300 km long-range objective, for example, reflects a deliberately conservative fuel-consumption assumption adopted after an earlier, more optimistic estimate was walked back.

See the full specification
Quick numbers
MTOW≈ 700 kg (target)
Normal cruise≈ 140–150 km/h (preliminary)
Standard mission range≈ 180–220 km (working estimate)
Long-range objective≈ 300 km
Surface (auxiliary) cruise≈ 30–50 km/h
Get in touch

Building toward a flight-tested prototype

We're looking for partners who want to help take Flying Squirrel from concept to validated hardware.