A new article of mine dealing with a number of navigational inconsistencies reported in the logbook of the SS Californian for April 14, 1912, has been posted on my website. It is called "Navigational Inconsistencies of the SS Californian," and is in PDF format. It can be downloaded at: http://www.titanicology.com/Californian ... encies.pdf
In particular, I show that Californian's reported noontime position for April 14, 1912, was slightly in error, a result of a simple entry error when her longitude was recorded. After correcting for this small error in longitude we find all calculated dead reckoning (DR) positions from 9:40 a.m. to 10:21 p.m. fall neatly into place for the reported course headings she was put on, and consistent for the speed that she was making that day. We also show that her logbook entries for that day, which were later written up, were not in agreement with several wireless messages she sent out, and offer direct evidence that the DR stopping point derived in this paper agrees with the actual position Capt. Lord sent to Capt. Gambel of the Virginian before receiving back official word about Titanic on Monday morning.