Our nav log on Oceanic flights becomes a bit more important because of the lack of radar services. Air traffic separation is provided using assigned altitudes, airspeeds, and tracks. Regular updates must be made to New York Oceanic ATC. This is done by calling New York Arinc on the HF radio over compulsory fixes (marked here with triangles I filled in next to the fix names). As we cross over the fix we put one cross through the fix name, mark down the current winds, ground speed, outside air temperature, fuel and compare them against the flight plan, mark down the UTC time over the fix and the ETA for the next compulsory reporting fix. We then call up New York Arinc on the HF radio and report our time over the fix, altitude, eta for the next fix we'll report at, and the next planned fix after that. Once Arinc acknowledges our information we put another cross through the fix name making an 'X'.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44389375@N00">Shawn</a> from Airdrie, Canada
CC BY-SA 2.0
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