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At Songdo, booths showed off taxi drones and delivery drones; traffic-control drones and inspection/maintenance drones; air-sea rescue drones and fire-fighting drones; light-show drones and racing drones.

Deploying the popular 40-year-old prince, a military veteran who also worked as a civilian air-sea rescue pilot, offers a more personal touch.

But deploying the popular 40-year-old prince, a military veteran who also worked as a civilian air-sea rescue pilot, offers a more personal touch.

As a civilian pilot, Ms Burrows could not have been a member of the club when it was formed in 1942 by CA Robertson, the chief draughtsman at PB Cow & Co - one of the world's largest manufacturers of air-sea rescue equipment.

I then started paddling like mad for the open sea because we were briefed about the US Navy using their submarines for air-sea rescue.