Jeanneau Merry Fisher 925

SS

The differences will be really subtle, but whereas the semi d hull shape is great up to about 20 knots it starts getting a little bit of a handful over 20 and to be honest you won't be gaining much as you'll just be using more fuel.
The semi P hull shape will be happy to go beyond to maybe later 20's if powered by the right engine/s, but does retain the same excellent characteristics at lower planing speeds.
Yours, with the Yanmar 260 is nice, but don't expect much more than 20 knots with her.

The semi d will be quite a wet boat up until planing speeds whereas the semi p will be a little drier unless there is a really brisk wind kicking up the spray.

Rest assured the boat is a very capable 30ish footer. I've taken them through some very asty short chops and tide races and apart from slowing down to displacement speeds I never felt unsafe. Likewise, she'll run nicely in an open water swell both ahead and following and she is quite comfortable, not to mention looking great when seen from another boat.

As she retains a keel (albeit much smaller than the big skeg on the 695 and 805) the differences really are barely noticeable, but that keel really does a good job in making a smallish boat feel much bigger.
 
Andie, We are looking at mooring at Brooklyn, about 20 mins drive from our home in Turramurra. Our closest marina is Empire marina Bobbin head Turramurra, the old Halvorsen yard, but it is nearly twice as much as a powered and watered berth at brooklyn.
The ramp at apple tree bay is about 1 km from bobbin head where the big picnic ground is.
We were also considering Apple tree bay on a swing as pictured, as they are quite resonable, but there is a few year wait and not as good as a berth.

Natibusiness, so what is the difference between semi displacement and semi planing and what are the on water characteristics with both?

Boat Ramp; Apple Tree Bay
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Apple Tree Bay Boat Ramp Pontoon
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Nice Holden Crewman ute and boat Scott, very tidy.

Thought you might live around Turramurra, my sister lives over in Vernon Street, near Kissing Point Rd.
The British guys have lots more knowledge about semi d boats than our locals, as they seem quite popular over there.
 
Hope not, Cairns is 2,500 kms from Sydney, but then Sydney gets bush fires, which Cairns does not.

My brother is a volunteer with the NSW State emergency service and has put his name down in case they need additional rescuers up in Queensland after the storm.

Our mate oldsaltoz is directly in the path of 'Yasi' with his boat in Cairns. It's now been upgraded to a cat. 5 with wind up around 300 kph. It will cut into the coast tonight (our time) on a 500 kilometre wide path.
They are expecting 400mm of rain as the storm front hits during a 4 hour period.

The poor folks have been hit really badly this summer.
 
and a very nice location to live Major, the less intense waterway, compared to the rest od Sydney Harbour.

That far up Middle Harbour there is just a creek at the bottom of the valley. Trouble is, with her old house being on the bush, she nearly lost it twice over the thirty years to bush fires, the worst being the 1979 fire.

Ironically my dad and brother were in the old Bush Fire Brigade and were away fighting fires in Adelaide at the time.

BBC are saying Yasi could be the biggest storm Australia has ever known, which I presume means bigger than Cyclone Tracy that hit Darwin on Christmas Eve in 1974.

Fingers crossed for the people of N Queensland.
 
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