Neva Aerospace is offering the first ever electric turbofans (ETFs)*
The high-performance Athena Series are electric turbofans (EDTF) designed for static thrust and optimised for Vertical Take-Off and Landing (VTOL). You may also hear them referred to as electric VTOL turbines (EU/FR) or electric VTOL turbo-fans (US).
We use indistinctly electric ducted fan (EDF) or electric turbofan (ETF). In some legal documents (-ie patents, etc..) we do use the term EDF. In our view the major difference is that an EDF has no shaped inner turbine shroud while an ETF has a specifically calculated shaped shroud. At Neva we are designing ETFs rather than EDFs.
About Multi-stage ETFs, we design and manufacture two types of electric turbofans (ETFs). The first is a rotor-stator design referred to as “one-stage” and the second type of design is a twin-rotor counter rotating configuration referred to as “two-stage”. The net torque exerted by the turbine is optimised to be zero at a certain operating regime in the one stage design. In the two-stage design the net torque can be controlled conveniently by adjusting the power-ratio associated with the right and left-handed rotors.
optmised for static thrust and VTOL/STOL.
April 2018 saw another technology leap when Neva announced that it has boosted the maximum thrust of its Athena turbine, with its new version V1.62, weighing just over 1kg to 3.4kgf (36N).
This advance has been achieved by improving the shroud geometry and changing motorization. It allows better propulsion for distributed propulsion aircrafts and drones.
The breakthrough technology of the Athena Series ETFs will displace uncaged rotor blades in the current commercial drone applications and is creating exciting new possibilities for the development of the next generation of unmanned aerial systems.
Neva ETFs are available from a growing network of dealers and distributors.
A is for Autonomous
Athena A – A for autonomous – turbines are designed for engineers who are working at the forefront of UAS design and distributed propulsion aircraft and are hungry for solutions to the limitations of uncaged rotor blades.
The combination of light weight and remarkable stability and yaw control, particularly so for the two-stage version, affords designers with unprecedented options for multiple turbines to be used and controlled in synch, and offers increased scope for redundancy.
Two-stage and single-stage (clockwise or counter-clockwise) versions are offered with maximum trust of 3,4kgf (35N).
AVAILABLE NOW: Athena V1.x Download spec sheet
Safety is intrinsic in the design of all Neva EDFs, and there are no un-caged propellers
- Internal redundancy with 2 separate stages, 2 engines, and 2 ESCs
- Intrinsic safety
- Reduced size
- Greater efficiency
Athena A (autonomous) is currently offered in two variants:
- 2ET: 2 stages counter-rotating (first stage CW or CCW – to be specified at order).
Athena Series turbines are made In Europe and are delivered fully assembled with Electronic Speed Controllers (ESC), motors and propellers.
Typical usage for manned or unmanned aircraft:
- Bespoke applications for medium sized UAS/UAV
- Bespoke heavy-payload, high-safety UAV/UAA
- Extreme sports (paraglider, base-jump, Turbo-Ski, etc…)
- Security and defence applications
- Electric aviation for high-efficiency VTOL and slow -speed linear flight
- Airships for high efficiency thrust for VTOL & slow speed linear flight