OPINION

Gunnar Johnsen: magnetic personality

There’s an age-old technology that’s now stepping out of the wings to claim its share of the limelight: permanent magnet (PM) motors. But look behind Rolls-Royce Marine’s commercial development of PM units and one remarkably tenacious man stands out. By Stevie Knight.

Gunnar Johnsen: “You have to see what fails and why it fails - so you have to push the limits and test it. You have to get people’s trust to be able to do that...”

There’s an age-old technology that’s now stepping out of the wings to claim its share of the limelight: permanent magnet (PM) motors. But look behind Rolls-Royce Marine’s commercial development of PM units and one remarkably tenacious man stands out. By Stevie Knight.

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