Building 1986 Bubble miss Budwiser.

[John Hudson]

Hi Guys,

Im building an ML Boatworks hull 1986 bud and am looking for setup tips.

Help would be appreciated.

 

[BlueBlaster]

When you say set up, do you mean how to build it? First thing is to get the width of the tunnel and you need to build a jig for it so it's straight. Then dry fit the parts so everything lines up right. And while building the jig the engine well piece may have angles, you will want to match that when building the top of it so the frame lays flat. I'm sure other can put there advice on here as well. Newton plans would also be helpful.

 

[Ken Smith]

I got a piece of granite (50" x 27") last week and am using it to build my boat. Typically, granite slabs are almost perfectly flat but use a straight edge to be certain. I have dry fitted the hull on the granite slab and am using a carpenters square (laid flat on the slab) to line up the transom and the side of the boat to make sure the hull is square. From there I tak the hull together with CA glue. After the CA dries I will check for square again then reinforce the joints with epoxy (using West Marine). I'm attempting this without a "build jig" but I'm hopeful I will get the same results. I am always open to suggestions. Thx

 

[John Hudson]

No sorry, i was refering to engine placement, centre of gravity etc

 

[Joe Wiebelhaus]

John, that looks like a AVL Dumas kit in the pics ?

 

[Ken Smith]

Close, its the Dumas Circus kit. Almost indistinguishable at this stage in the build.

 

[Hydro Junkie]

Dumas probably used the same dies for both boat frame sets. Almost had to laugh when i read in the instructions that the builder has to cut off the excess framing so the cowl will fit

 

[John Hudson]

What size/ thickness of skin/plywood should i use for the bottom and deck?

 

[Hydro Junkie]

I have never used anything thicker than 1/16" ply for skin as there isn't any benefit to go heavier. Actually, to go thicker on the deck will make it almost impossible to get the ply to conform to the compound curves of the deck.

 

[John Hudson]

Thanks Junkie.

I will put pictures up tomorrow.

 

[John Hudson]

What i have done thus far:

 

[Ken Smith]

Looks good John. Is the offset to the right or are the pics reversed? Thx

 

[John Hudson]

The offset is on the right (starboard) side. Im building a 79 Miss Circus Circus at the same time and its just amasing the difference in design.

I am uncertain about engine placement. Does anyone know what the cg for a 1/8 hoydroplane should be?

 

[Hydro Junkie]

Roughly 1" behind the sponson transom, +1/2". That being said, it can vary from boat to boat depending on how it runs when completed as well

 

[John Hudson]

It there a specific prop weight for 1/8 scales?

 

[Hydro Junkie]

Not per se', under a pound is prefered by many though