Passage planning exercise

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MorningBird
MorningBird
NSW
2711 posts
NSW, 2711 posts
7 Nov 2014 11:45pm
A bit of an exercise for all you cruisers. What would be your passage plan if you were leaving Broken Bay to arrive at Lord Howe Island next weekend, using the current weather forecast and current charts? The boat is an S&S34 with a planned 5kt VMG.
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
8 Nov 2014 8:46am
To get to Lord Howe next weekend with an SS34 you should have left already!
MorningBird
MorningBird
NSW
2711 posts
NSW, 2711 posts
8 Nov 2014 9:05pm
I knew when I typed it somebody would say that, but was hoping not as my post was very late Friday.

We plan to depart Tuesday morning. It looks like reasonable weather until late Friday night early Saturday. The front coming through looks pretty tough. By then we should be near the island and can heave to if needed.

I hope to get in to my mooring on the Saturday high tide at 1440.
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
9 Nov 2014 9:42am
The previous owners of Ramona sailed her to Lord Howe in 3 of the Pittwater to Lord Howe races in the 1990's. Racing with a full crew is not quite the same of course. Checked the webpage but there are no times and just a couple of photos, then digital cameras were not too flash either!

Ramona is up on the slips at the moment, coming off in a couple of hours. Talking to one of the fishing boat owners who came past yesterday and he reported a patch of warm water just NE of here. 20 degrees C, still green but with 2.1 knots of current down. In close it's still a green 16c. The conditions are very changeable at the moment.

This site may help. Like all these sites the infomation is at least 24 hours old and unless you subscribe is about the best you can expect.

oceancurrent.imos.org.au/

My passage plan would be sail Easterly and make the distance as short as possible with the prevailing winds and current! Clearing the coast as fast as possible.
MorningBird
MorningBird
NSW
2711 posts
NSW, 2711 posts
9 Nov 2014 10:17am
The IMOS current charts are my source as well. I have printed off the past weeks worth and their is little change to the strong SE set 150nm off Broken Bay.

I agree with the head out plan, with a minor variation. As there is a southerly wind on Tuesday and into Wednesday we can make 30nm or so north of the rhumb line in the first 30 hours when the current will bring us back to track. We might be motor sailing through the main current and then get a bit of northerly lift the other side.

We will be affected by the strengthening NE wind on Friday dependent on when the front comes through. Early Saturday is my best prediction for where we will be at the time. If it takes it time we might be in the lagoon before it arrives.

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