Tagged: Robinson 44

June 13

First all-electric R44 flight completed by Tier 1 Engineering

HI Summary Tier 1 Engineering has made the first flight of an all-electric Robinson 44...

Helicopter News / Top Stories

June 13

First R44 flight with electric propulsion unit made by Tier 1 Engineering

HI Summary Tier 1 Engineering has made the first flight of an all-electric Robinson 44...