Would this work on a flying rocket?

World's first polyurethane blade reinforced with carbon nanotubes is lighter and stronger and eight times tougher

The article on NextBigFuture is about using these for windmills, but could there be another application for them? It is stronger than carbon fiber.

In a comparison of reinforcing materials, the researchers found carbon nanotubes are lighter per unit of volume than carbon fiber and aluminum and had more than 5 times the tensile strength of carbon fiber and more than 60 times that of aluminum.

Just when I thought that the flying rocket idea was impractical.