Quote:
Originally Posted by mudbug  I would really love to see some real stats on the number of days that people are underway truly offshore versus anchored/moored and how many underway days are on longer than 72 hour passages (where weather really becomes a wild card). |
Here is a scenario for a South Pacific crossing that is played out many times a year. These numbers are not from my log book because that would be too much of a pain, but represent a similar voyage I did made in the South Pacific in 2006/2007.
Depart: Panama April 1
Arrive: Sydney, AU November 1
Time in transit: ~ 7 months or ~210 days
Rough Route: Galapagos, Marquesas, Societies, Cooks, Samoa, Tonga, Fiji, New Zealand, Sydney, AU.
Basic great circle mileage: ~12,000 nautical miles actual miles sailed will be more.
Days underway and percent of total transit time underway.
5.7 knots average = ~88 days or ~41%
7 knots average = ~71 days or ~34%
8 knot average = ~62 days or ~30%
9 knot average = ~55 days or ~26%
When I followed a similar route across the South Pacific on my 40' ULD mono I average about 5.7 knots underway. Note: My 5.7 average was considerably faster than most monos in the fleet.
The number of passages greater than 72 hours depends on your route, weather and most of all boat speed. It might be as many as 8 legs the you will be out over 72 hours. Galapagos to Marquesas is about 3000 nautical miles or 14-22 days based on the speed ranges above.
As for the likely cruising speed of the 440. If one were to crudely extrapolate the long term average speed of 7 knots sailed on a 38 footer to determine the likely speed of a 44 footer then: 7 knots divided by 38 feet = a factor of 0.18. Factor of 0.18 times 44 feet = 7.92 knots which seems a lot closer to reality. If the 38 footer and 44 footer left at the same time in about 3-4 hours the 44 footer would have given the 38 footer what I call a horizon job as that one knot is a big deal and the 44 would be literally out of sight.