Motored out to baseline boatspeed after this winter's work. Yesterday's attempt failed due to Need entry for iNavX not recording location data in background mode. Checked "Location Services" permissions on the iPhone and set to "Always" for iNavX.
Motored at 2,800rpm to 1"SC", G"9", R"6", G"9", R"6", G"9", and 1"SC". No joy. No data captured during background operation. iNavX added a new "feature" with default being to disable location capture in background mode. Lovely.
GPX formatted track . Distance: ??nm, average speed: ??kts, duration: 0:32