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Our envelope is antistatic so it reduces greatly the risks you are referring to. We can't wait to conduct a real life test of our hylighter crashing in a power line (there are places to conduct such tests in France).

Are you convinced that your antistatic envelope is the only potential source of sparks, arcs, flames or other catalysts of ignition? Are you aware of squirrels, chipmunks, birds, spiders, insects, wires, and branches?

You do say that you will stay a suitable distance away though, so that is good.

Have you ever seen sparking power lines outside of movies? Power lines don't normally spark, unless there is something seriously wrong with them.

I've seen them spark, but only in wind conditions which would themselves already be impossible for an airship to fly in.

Yes exactly, we are doing a preventive maintenance solution. So we fly whenever possible to assess the condition of the power line.

Lines?

No.

Relays and transformers?

Yes.

If they are flying into or near enough to spark (within 1 metre?) of power lines you have a bigger problem: the operator is not in control of where it is flying.