Building 23' catamaran. Build updates

[stevemid]

Hi all,
Next week I take delivery of the kit to build a "Spirited 230"
http://www.spiriteddesigns.com.au/index.php?pageId=7268
The design specs are as follows. Two that I know of have been built in Aus, one powered with twin 60HP Suzuki 4 strokes has a top speed of 29 knots (2 POB, full fuel and water). The other with twin 40HP Honda's has not yet been launched and I am dying to see what they achieve with those motors. I'd appreciate any advice on engine selection.
Designer Specs:
LOA
7m / 23ft
BOA
2.5m / 8ft 2”
DISPLACEMENT
1200kgs / 2646 pounds
BRIDGEDECK CLEARANCE
430mm / 1 ft 4”
PAYLOAD
500kgs / 1100 pounds
CRUISE SPEED
16-18 knots (small motors)
20-25 knots (large motors)
TOP SPEED
20-22 knots (small motors 30HP)
25-30 knots (large motors 50HP)

[Kevin Ferguson]

Looks interesting. What about new Yamaha 70's? Had a quick look at website a didn't see any max horsepower stated. If 50 's are giving 25 - 30 Knots 70's should give that @ a lower RPM and a little more top end @ WOT for glassed out days. Most on here will want regular updates on the build process with plenty of pictures. Hope that it is everything you are looking for.

Cheers Kevin

[Clonoid]

I can't help with advice but wish you well and please post pics of progress - Good on ya ! I'm building a Bowdidge Marine Designs boat, and it's a bit of work but very rewarding.

[chris69]

Looks a good thing 2x60hp or 2x70hp would be nice,how do you get the builers plate to regester it being a over seas kit???? out of interest.

[Chimo]

Looks an interesting set up. Should be nice and soft riding.

Get ready to post lots of pics as you build it pls.

Where are you located by the way?

Cheers
Chimo

[wirlybird]

x2 seven marine outboards should do the trick

[stevemid]

Looks a good thing 2x60hp or 2x70hp would be nice,how do you get the builers plate to regester it being a over seas kit???? out of interest.

It's an Aussie kit. Designed in Port Stephens with Duflex panels from ATL Composites in Qld.

[stevemid]

Looks an interesting set up. Should be nice and soft riding.

Get ready to post lots of pics as you build it pls.

Where are you located by the way?

Cheers
Chimo

replied twice. sorry

[stevemid]

Looks an interesting set up. Should be nice and soft riding.

Get ready to post lots of pics as you build it pls.

Where are you located by the way?

Cheers
Chimo

I'm on the NSW Central Coast. I'm actually converting from sailing a monohull up to Qld in the winters to now delivering this up there by road. Thought the cat might roll less of an evening in the anchorages.

[stevemid]

Wirlybird!

557 HP? Each?

[stevemid]

I can't help with advice but wish you well and please post pics of progress - Good on ya ! I'm building a Bowdidge Marine Designs boat, and it's a bit of work but very rewarding.

Ah.. strip plank construction? I looked at their site, some nice looking boats. Which one are you building?

[wirlybird]

you can never have enough HP

nice rig steve

a pair of the new yam 70hp's would be great on this

[GBC]

So the MDF - does it stay or go?

[OPTI]

id go for the most hp you can get at the maximum transom weight.the more top speed you have will give you a more economical cruise .nice project

[chris69]

It's an Aussie kit. Designed in Port Stephens with Duflex panels from ATL Composites in Qld.

Sorry Stevemid i did not see the .au on the link just saw the foreign flags at the top of the link page ,well that makes it easyer for builers plate,it should be a light cat with those composite panles and looks a treat to build whats the price for the kit.