G1 PROTOTYPE / AUSTRALIA
Pure-electric movement at the water–air boundary. Not an aircraft. Not an eVTOL. Not a boat.
THE WATER–AIR BOUNDARY
ORNI G1 is a compact, single-seat ground-effect vehicle conceived for controlled water environments. It uses the aerodynamic cushion created close to the surface to move with less induced drag—fast, low and unmistakably different.
THE NAME / 01
ORNI / FROM ORNITHORHYNCHUS
ORNI is derived from Ornithorhynchus—the Latin genus name of the platypus, one of Australia’s most extraordinary native animals.
We did not borrow the platypus as a mascot. We inherited its logic: sense what others cannot, belong between worlds, and resist every familiar definition.
When the first platypus specimen reached Europe, scientists suspected a hoax. A mammal that lays eggs, with a duck-like bill, beaver-like tail and otter-like feet, it broke the biological categories of its time. ORNI carries the same spirit: not aircraft, not eVTOL and not boat, but a new species of movement.
Underwater, the platypus closes its eyes, ears and nostrils and navigates through electroreceptors in its bill. ORNI translates that capability into a smooth, radar-transparent sensor nose conceived to integrate millimetre-wave radar, LiDAR, ultrasonic ranging and surface-following intelligence. Its cyan light signature makes that invisible electric sense visible.
The platypus is adapted to the shallow-water edge. ORNI is engineered for the same boundary—not beneath the water and not high in the sky, but within the aerodynamic interface just above the surface.
PROJECT PLATYPUS · AUSTRALIAN ORIGIN · BIOMIMETIC INTELLIGENCE
GROUND EFFECT / 02
The first development envelope targets flight approximately 20–80 cm above the water. Sensor-led height protection, a low centre of gravity and a blended wing body are being developed as one integrated system.
Concept specifications — subject to engineering validation.
ORNI G1 / 03
The G1 concept combines a blended wing body, a broad platypus-bill nose and rear-integrated twin ducted propulsion. The upper form is precise and faceted; the lower surface remains smooth, buoyant and hydrodynamically purposeful.
BIONIC AERODYNAMICS / 04A
The platypus-inspired forebody is not styling applied after the aerodynamics. It is a functional design direction for the water–air boundary, where low-speed airflow, planing loads, pitch balance, spray control and sensing must be resolved together.
A slender pointed nose is valuable when high-speed wave-drag and shock-wave management dominate, especially in transonic and supersonic flight. ORNI G1 is being developed for water acceleration, take-off transition and low-altitude ground-effect cruise, so its priorities are fundamentally different.
FOREBODY + CENTREBODY + WING + WATER SURFACE
A low, wide forebody can distribute pressure over a larger area and blend smoothly into the centrebody and wing. This allows the forward body to contribute to overall aerodynamic loading and pitch balance.
The lower surface can be tuned with shallow deadrise, longitudinal curvature, chines and spray-control features to build hydrodynamic support and reduce wetted area as speed increases.
Ground-effect benefit comes from the pressure system created by the nose, centrebody, wing and water surface together. A broad, smoothly blended transition helps those elements work as one system.
The wide forebody creates room to guide spray away from propulsion and control surfaces while housing distributed height, obstacle and surface-awareness sensors inside a clean radome.
The design premise is not “a blunt nose creates more lift.” It is that a wide, low and smoothly blended forebody allows more of the vehicle to participate in aerodynamic load distribution, hydrodynamic planing, pitch stability and environmental sensing.
Engineering direction only. Final curvature, deadrise, chine geometry, spray behaviour and pressure-centre location are being evaluated through CFD, hydrodynamic analysis and digital models, followed by subscale and full-scale water trials.
BIO-INTELLIGENCE / 04B
Inspired by the platypus and its electroreception, the broad nose is more than a visual signature. It is conceived as a radar-transparent sensor radome—integrating height, obstacle and surface awareness beneath a clean composite skin.
Radar, LiDAR and ultrasonic sensing concepts map the water immediately ahead.
Continuous low-level ranging supports a protected operating envelope close to the surface.
Sensors disappear inside the structure, preserving aerodynamic flow and the ORNI silhouette.
MODULAR ARCHITECTURE / 05
Nose, wings, battery and rear power systems are organised as serviceable modules. Aircraft-grade locating features, load-bearing interfaces and interlocks are being developed for rapid assembly, inspection and trailer transport.
Radome + forward structure
Pilot cell + primary controls
Quick-fit left + right structures
Protected, serviceable battery
Twin ducted propulsion + tail
SAFETY BY DESIGN / 06
G1 is being defined around a controlled operating envelope—not unrestricted flight. The programme prioritises stable flotation, low-speed water handling, protected transition into ground effect and a recoverable response to system faults.
Software-limited low-altitude operation with multiple ranging inputs.
The vehicle remains afloat and towable after propulsion loss.
Independent electric drive supports redundancy and differential control.
A supervised test mode can command immediate propulsion isolation.
Attitude, height, power, temperature and vibration recorded for every trial.
Obstacle, spray, crosswind and wave-state inputs shape the operating boundary.
Development begins in controlled water with a safety boat, shore observer and defined emergency procedures.
DEVELOPMENT ROADMAP / 07
System Definition and Digital Validation are progressing in parallel. The programme advances only as technical and safety risks are closed—no red risk moves forward.
Freeze requirements, interfaces, risk register and verification plan.
CURRENTCFD, hydro behaviour, structures and propulsion coordination.
CURRENTModular prototype, static loads, buoyancy and low-speed taxi.
Progressive speed, transition and unmanned ground-effect validation.
Pilot training, maintenance, insurance data and partner operations.
PARTNER WITH ORNI / 08
Mildura and the Murray River place ORNI close to a natural development environment, advanced composites capability and a market ready for new water experiences. The first commercial model is deliberately focused: controlled waters, professional operators and short, repeatable missions.
Resorts, tourism and supervised water-sport operations
A modular electric architecture for future two-seat and mission variants
Training, service, telemetry, insurance and local support
Seeking engineering, test-water, investment and strategic operating partners.
ORNI / NEXT
ORNI G1 is currently progressing through System Definition and Digital Validation. We welcome serious conversations with technical partners, controlled-water venues and aligned investors.