Transas iSailor - The Advanced Data Logging and Playback functionality

A small video tutorial on using the Advanced Data Logging and Playback functionality in Transas iSailor application (iOS only) iSailor for iPad/iPhone: https://itunes.apple.com/en/app/transas-isailor-marine-navigation/id398456162?mt=8 iSailor for Android: https://play.google.com/store/apps/details?id=com.transas.uninav.plotter&hl=en iSailor on Facebook: https://www.facebook.com/Transas.iSailor?ref=hl