Hi. I just purchased a light weight sailing cat with blown outboards. I want to finally install my hybrid system of one gasoline shaft drive...
Waterpumps and exhaust elbows are easy. Building a watercooled manifold is much harder. Has anyone tried using a fan forced ducted cooling...
Can anyone provide some more info on modern versions of these types of craft in various sizes? I heard there was a popular power cat with one...
If the hulls of a cat are closer together compared to LWL, what effect does this have on the motion comfort of the crew? Or another way of...
Can someone please explain to me why I am constantly seeing people trying to power their boats with electric motors that have much less power...
Prop size check. What do you guys come up with? 2 blade folders for a 43 foot sailing cat of 20000lbs Flexo fold first told me 2B 17x13 now...
Hello, I am about to get one of my volvo folding props back after a new hub got installed after ongoing corrosions issues. I also have aluminium...
When looking at say a catamaran. The length to displacement ratio is divided by 2 due to the 2 hulls sharing the displacement. This gives an...
Short story: I have the dreaded Volvo 3 blade folding props on my SD20 saildrives powered by 3GM30s. I want to eliminate the alloy part of the...
I keep getting people to ask me to take them on my 43 foot sailing cat for money. This got me thinking. I would love to go sailing as a job to...
I am about to paint my top sides and deck. I'm doing much of it bit by bit without a haul out. I saw the system 3 epoxy undercoat, and also pu...
After having some discussion in this thread http://www.boatdesign.net/forums/hydrodynamics-aerodynamics/bulbous-bow-canoe-51787.htmlabout about...
Is there such a thing that is both lightweight and affordable?
Preferably in AU, or with decent shipping rates. This place in the US seems to have amazing prices. They have a 700ah (9kwh) bank for $3350...
Following my thread regarding a cat tender. It seems that a traditional mono would be better suited. SOR is a light weight tender for a 43 foot...
Does anyone have any suggestions for a DIY small catamaran dinghy design to replace a rib? The emphasis is on very light weight and stability....
Performance cruising sailing cat with 2 engines. 8000kg 18,000lbs loaded. 43 foot. Yanmar 3GM30 27hp @ 3600rpm. SD20 2.62:1 ratio....
Hello. My new sailing cat fitted with 3GM30s and SD20 saildrives had some dismantled volvo 3 blade folders on board. So I done them all up...
Apparently there are 2 pumps for this engine. You can tell which is which by if the pump is sealed by an O ring or not. My version has the O...
Does anyone know much about this design? Not much is coming up in internet searches.