A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Lu Abel
Date: 2017 Mar 3, 09:05 -0800
Here's another (and possibly better) report of the incident from a commercial marine oriented mailing list:
MAIB: Experienced Launch Skipper Relied on iPad Navigation App Prior to Collision – gCaptain
Is it possible that the skipper was using a WiFi connected GPS rather than having an internal GPS in the iPad? I know you can buy "hockey puck" GPS units with a USB cable to connect to your computer; the existence of a WiFi (or Bluetooth) version would not surprise me.