Bestevaer 49ST

[HappyMdRSailor]

And Inquiring minds want to know how big your solar breakers/(fusing) are???

80A
40A
30A
???

From solar...

[weavis]

Like Dockhead, If I ever have the spare cash, I would go to KM and have a boat (catamaran) made...

[HappyMdRSailor]

Originally Posted by weavis

Like Dockhead, If I ever have the spare cash, I would go to KM and have a boat (catamaran) made...

I smell a Mallorca fractional opportunity...

[DDabs]

In all honesty, would KM consider building a cat?

[weavis]

Originally Posted by DDabs

In all honesty, would KM consider building a cat?

Double the money....

[DDabs]

Double the fun, doublemint gum!

[hoppy]

Originally Posted by weavis

Still waiting to see the other hull...

They are living in the other hull

From what I understand, they have 2 more hulls than you have

[weavis]

Originally Posted by hoppy

They are living in the other hull

From what I understand, they have 2 more hulls than you have

er... no. BUt I dont have one here...

[Seaworthy Lass]

Originally Posted by HappyMdRSailor

And Inquiring minds want to know how big your solar breakers/(fusing) are???

80A
40A
30A
???

From solar...

Not sure yet. They will be Merlin Gerin industrial double poled circuit breakers such as this, fitted on a common DIN rail system:




This is not as pretty as an engraved marine circuit breaker panel, but it makes the circuit breakers very easy to replace or to add new ones later as needed. My resident electrician hates the modern trend of yachts having only a few circuit breakers. The wiring gets messy and future additions are hard.

Our board will back directly into the technical area/worshop adjacent to the engine bay, making wiring simple.


Here is photo from KM's website of another of their boat's showing that the type of panel we have in mind has been installed before. Our panel will be significantly larger though:

[weavis]

Looks like there will be lot of single circuits going to the bus board...

[Seaworthy Lass]

Our rudder construction is well underway.

"Beefy" was our simple requirement, above and beyond KM's usual level of ruggedness. The shaft diameter is 130mm. The central panel that you can see here is only 5mm thick, but the rudder skins will be two sheets of 8mm alu:

[redsky49]

So the rudder will be a combination of stainless steel and aluminum.

Do you know how they weld stainless to aluminum? I would think that it would be difficult due to the differing temperature limits of the two materials.

I know nothing about welding

[Seaworthy Lass]

Originally Posted by redsky49

So the rudder will be a combination of stainless steel and aluminum.

Do you know how they weld stainless to aluminum? I would think that it would be difficult due to the differing temperature limits of the two materials.

I know nothing about welding

No stainless steel. It is all aluminium .

SWL

[redsky49]

Originally Posted by Seaworthy Lass

No stainless steel. It is all aluminium .

SWL

Well, that's pretty cool!

[Dockhead]

Originally Posted by Seaworthy Lass

No stainless steel. It is all aluminium .

SWL

Indeed. I had my grubby hands on that rudder shaft a couple of days ago, and it is an absolutely gorgeous piece of machined billet. Work of art. I absolutely love the way they machined the sides off it to make it fit inside the airfoil.


I was surprised at how small it was, however. Maybe full spades are so effective that more area is not needed? It is about 1/4 of the area of the rudder on my boat, although the displacement is similar. Also, the shaft is offset really far so that very little of the rudder area is ahead of the shaft axis, so there will be very little servo effect. What is the idea behind that? Wouldn't make any difference to the hydrodynamics I guess.