OT but there is a very cool video from Davin Graham on how such a drone looks like while he was filming at Milford Sound, New Zealand <a href="https:&#x2F;&#x2F;youtu.be&#x2F;l59Svj2E4lk?t=1m35s" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;l59Svj2E4lk?t=1m35s</a>.<p>Edit: here is the final footage <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=dMGSrS_2R6I" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=dMGSrS_2R6I</a>