The author bought a new-to-him Robinson R44 helicopter and enjoyed a summer of flying, including scenic trips and unique helicopter-only missions. During a fall flight, the author's carbon monoxide ...

Light rotorcraft maker Robinson Helicopter and biotechnology firm United Therapeutics recently ground tested an R44 modified with hydrogen fuel cells, and the companies say test flights are imminent.

Tier 1 Engineering has begun flying its electric Robinson R44 helicopter with the 350-kW MagniX magni350 electric propulsion unit planned for the production conversion. The helicopter flew for more ...

Robinson Helicopters has issued a service bulletin for its R44 and R22 aircraft to address potential issues with certain governor controller upgrades. [Courtesy: Robinson Helicopters] Robinson ...

Brazilian regulators have approved operations of US firm Rotor Technologies’ R550 Sprayhawk, marking the first such approval for the remotely-piloted variant of Robinson Helicopter’s single-piston R44 ...

A Robinson R44 modified by Tier 1 Engineering has set a new world record for electric-powered helicopter flight. Tier 1 Engineering recently flew a modified Robinson R44 a distance of 30 nm at speed ...

An electric-powered R44 helicopter modified by Tier 1 Engineering and Lung Biotechnology showed a new way to transport transplantable organs. An R44 helicopter powered entirely by an electric ...