The firm said it would analyse the data and prepare for another test flight aimed at demonstrating the system to regulators in "coming days".

BBC: Boeing 787 Dreamliner

Eventually Higg ratings will translate to consumer labels, but the Coalition is being careful to test the index, gather data, and refine the system before delving into anything consumer-facing.

FORBES: Target, Nike, Levi's Join Forces On Sustainable Clothing

The system gathers nearly one million data points during a typical series of 24 test swings.

FORBES: Take Strokes Off Your Golf Game Today - The Best Way To Buy New Clubs