Robinson and MagniX to develop all-electric R66 demonstrator

Robinson Helicopter Company and electric engine manufacturer MagniX have agreed to jointly develop a battery-electric demonstrator based on the Robinson R66. 

Announced today (23rd July) at EAA Oshkosh, the two companies plan to fly the demonstrator by late 2026.

“MagniX’s proven experience in electric propulsion, and previous experience with the R44 makes them the right partner to collaborate on alternative powerplant solutions,” said David Smith, president and CEO of Robinson. “This agreement allows us to develop market-leading, zero-emission solutions that meet the needs of many critical mission types.”

MagniX will provide the first in its range of HeliStorm engines designed for rotorcraft applications, announced back in March 2025, for the project. The demonstrator will also make use of MagniX’s Samson batteries which have been in development since summer 2024.

Reed Macdonald, CEO of MagniX, said: “We are excited to be working with Robinson to lead the transformation of the helicopter industry by creating the next generation of vertical lift propulsion systems. We have already flown two groundbreaking electric Robinson helicopters and I look forward to deploying our HeliStorm electric engines and Samson batteries under this programme.”

Back in 2022, MagniX powered the first flight of a retrofitted electric Robinson R44 helicopter. It then supplied the electric motor for the first hydrogen fuel cell-powered helicopter flight — also based on a R44 platform — in March 2025. 

“We have demonstrated the clear cost, noise and safety benefits of MagniX’s fully-integrated electric powertrains,” said Riona Armesmith, CTO of MagniX. “MagniX technology is well suited to meeting the needs of the helicopter market and we’re proud to partner with Robinson as they seek to develop cost-effective electric helicopters with a clear path to certification.”

There are more than 1,500 R66 units in active service. Robinson sells about 100 units per year.