Testing continues on the blade assembly but using natural wind, rather than on the motorway (where it’s designed to be used).
The video below shows the rotation of the Mk. VII prototype but with six blades instead of the usual 12. We reduced the number of blades due to the distance between the blades being too narrow at this scale.
Weather: Winds SW at 17 to 20mph (7.6 – 8.9 m/s)