Does anyone know what this is ? Gumtree catamaran in sydney

Thank you very much for the replies.

Sailhand, thank you for the information. I thought that boat had to be some sort of attempted production cat. I would be very interested in any new information. Regarding the GC one was it by chance under 20' with a curved front to the cabin ? I've seen a couple like that with a fake wrap around window, black strip thing...

aussiebushman, sorry to hear about your boat. Blessed awful and one reason I'd prefer to store a boat in my front yard than a swing mooring.

This popped up on gumtree today (probably already sold):

BOAT FOR THE MULTIHULL ENTHUSIAST | Sail Boats | Gumtree Australia Caboolture Area - Beachmere | 1148320066 https://www.gumtree.com.au/s-ad/beachmere/sail-boats/boat-for-the-multihull-enthusiast/1148320066

Looks a bit horstman like. I realise threads like this might not be to everyone's taste but at least it's a break from foilers and arguments about mid mounted centerboards...

 

Not sure exactly what is on sale here, but may interest someone:

INSPIRATION 11 M. CATAMARANS | Boat Accessories & Parts | Gumtree Australia Gympie Area - Rainbow Beach | 1146851644 https://www.gumtree.com.au/s-ad/rainbow-beach/boat-accessories-parts/inspiration-11-m-catamarans/1146851644?utm_source=criteo&utm_medium=cpc&utm_campaign=LF-boat_parts_accessories

 

.....and cop this one, and the price of the moulds:

45 ft Catamaran boat mold | Boat Accessories & Parts | Gumtree Australia Gold Coast North - Steiglitz | 1049565310 https://www.gumtree.com.au/s-ad/steiglitz/boat-accessories-parts/45-ft-catamaran-boat-mold/1049565310?utm_source=criteo&utm_medium=cpc&utm_campaign=LF-boat_parts_accessories

 

They are both selling moulds. Some people are optimistic but boat moulds are pretty worthless. I might be interested in moulds for an 8 meter but both those are too big (and one looks like a power cat anyway). It's like those "project" boats. The tri is about an hour and a half drive, and if it's foam as stated it's a bargain, but what would I do with a 40' trimaran ?

 

Of course, moulds are only of interest to people intent on building, but there are a few people hereabouts with those ambitions. Those ads suggest boat building as a business is a tough gig. The ad for the 45' cat says both sail and motor boats have been built from the moulds.

 

Well you know the old saying, how do you make a small fortune building boats ? start with a large fortune...

If a set of 8m moulds came up at the right price they would make building a set of hulls more attractive. Some of the clever modern plans available make building fast and straightforward, like Mr Woods eagle for example, but I would imagin if you had a servicable set of moulds you could produce a set of hulls maybe even quicker.

The thing is they aren't worth anything because few people are up for boatbuilding as a business. Very hard to make money I think...

 

A set of moulds for an 8m that is a good design is unlikely to be found at a cheap price, because it would be within the capability of an amateur to hand lay, but you never know what pops up on Gumtree.

 

The 40 foot trimaran at Beachmere presents as "rough as guts". God knows what the "foam" is, but really you wonder about build quality when considerations of finished appearance have seemingly been not of the slightest interest. But for $1000 , what can we expect !

 

It has been interesting to come across this thread, the boat in question was indeed a Karinya 20 designed and built by my parents back in the late 70's. As kids we were dragged up and down the east coast boat shows trying hard to sell a few and sailed in more than a few regatta's. Unfortunately only about 6 were built and the business folded. My parents are still active in the multihull world having built numerous larger cat's since.

 

Great! Thank you very much, Mark, for the information about the KARINYA 20. I think it is important for the history of multihulls to lern more about this catamaran. Do you have a bit more about KARINYA, photos or drawings or a leaflet with dimensions or technical details? Was this the factory of your parents: Seamarans Pty. Ltd., P.O. Box 91, Port Kembla. Phone (042) 74 2415, 29 3923 a.h. ? M.

 

Hi Manfred,
Yes it was, not the best quality images, but gives you an idea.

 

Thank you a lot, Mark. I have never seen these pics before. They are very interesting. It takes a lot of work to design and build the plugs and then the parts for the cat. The earnings are better with bigger boats. Therefore small cruising catamarans are so rare and a risk and the effort seldom does pay out.
On the other side small trailable cats are important for sailors who want to switch from a beach cat.