----- Original Message ----- From: "Jim Leishman" <nordhavn@stratosnet.com> To: "alex hirsekorn" <alexh@olypen.com> Cc: "Bob Towery" <bobt@escapetech.com>; "Norlene Chong" <NCHONG@MACKENZIEFINANCIAL.COM> Sent: Tuesday, November 13, 2001 6:34 PM Subject: Around the world, Day 10, Fuel and range calculation By Georgs Kolesnikovs Aboard the Nordhavn 40 Nordhavn Day 10: Dana Point to Honolulu Fuel and range calculations Here's how Jim Leishman works the numbers every day at 12 noon local time: << Remaining fuel aboard 430 gallons (240 starboard, 190 port) Fuel burn last 24 hours 50 gallons Distance made good last 24 hours 151 nautical miles Speed made good last 24 hours 6.3 knots Distance remaining to destination 970 nautical miles Remaining range at current speed 6.2 knots 1,333 nautical miles Must make 2.23 miles per gallon to achieve above. Estimate 100 gallons remaining upon arrival at Honolulu Estimate arrival Tuesday, November 20, at 12 noon >> These numbers are reviewed and recalculated daily, sometimes more than once a day. Noting the requirement of 2.23 mpg makes it easy to keep an eye on the FloScan fuel measurement readout. If we have around 100 gallons still aboard when we reach Honolulu, we'll have adhered to the rule laid down by Robert Beebe in Voyaging Under Power, that is, always keep 10 per cent of total tankage in reserve. Jim prefers to use 20 per cent, but on this long passage, he may have to settle for the lower number, especially if Walt Hack's latest forecast proves to be accurate in terms of more contrary winds coming our way. --- Note: As soon as we can, we'll resume posting reports at http://www.trawlerworld.com, including the ones we missed, and adding photos too. During the unexpected hiatus, daily reports will be directed to Trawler World List via Alex Hirsekorn. If you have a question for the crew of Nordhavn, e-mail mailto:alexh@olypen.com to have your question forwarded. If you are not a member of Trawler World List, you can monitor reports from on board Nordhavn at http://www.samurai.com/lists/trawler-world-list/date.html#end. Watch for messages that start with the words "Around the world" in the subject line. --end--gxk