Search found 52 matches

by Joris
Thu Sep 12, 2013 6:55 am
Forum: Boat Power
Topic: 2 engines or 1 HP
Replies: 6
Views: 2959

Re: 2 engines or 1 HP

STJ wrote:Does 2 140 HP = 1 280 HP motor.
That's correct. But 1 engine producing 280hp will probably be much lighter than the 2 engines producing 140/piece.
by Joris
Sat Sep 07, 2013 11:36 pm
Forum: Power Boats
Topic: Building The Vera Cruise
Replies: 3462
Views: 858172

Re: Building The Vera Cruise

The blog has also been updated with more pics and details about the positioning process. I especially like the last photo here, because you can start to see the shape of the boat. I positioned my frames last week and spend 4 evenings just looking at them :D It's exciting to see it take it's shape.....
by Joris
Sun Sep 01, 2013 1:21 pm
Forum: Boat Power
Topic: Using a BMW Boxer engine in a ski king
Replies: 11
Views: 4885

Re: Using a BMW Boxer engine in a ski king

Looks like we're thinking the same way :wink: I had an idea to use a BMW rear bolted onto the 998 cases but didn't think it would look or sound right in the kind of boat i'm building... Bevelheads : i returned to racing with modern bikes a few years ago and haven't been really active there. I'm more...
by Joris
Sun Sep 01, 2013 12:04 pm
Forum: Boat Power
Topic: Using a BMW Boxer engine in a ski king
Replies: 11
Views: 4885

Re: Using a BMW Boxer engine in a ski king

To be honest, i have looked at using a ducati engine too. I wouldn't sacrifice one of my bevels for it though :D The boxer might be easier to get in place but i'm afraid vibration and keeping it cool would prove to be real problems. I rather build a 90° drive-line for a Ducati. With the 907 you coul...
by Joris
Sat Aug 31, 2013 11:39 pm
Forum: Boat Power
Topic: Using a BMW Boxer engine in a ski king
Replies: 11
Views: 4885

Re: Using a BMW Boxer engine in a ski king

The new ones (2014-models) will be water-cooled, others are air/oil cooled.

Not sure it would work in a boat but sure would be cool in a small hydroplane.
Next project, a ducati 998 powered Tiny Might for my sons! :wink:
by Joris
Sat Aug 31, 2013 4:38 pm
Forum: Fasteners
Topic: Composite Staples & Nails
Replies: 34
Views: 29684

Re: Composite Staples & Nails

Peter,

Those are "Monel" , an alloy with lots of zinc and some copper, very hard, heat resistant and very resistant to corrosion.
Costs more than stainless and very hard to find (at least where i live)
by Joris
Thu Aug 29, 2013 9:38 am
Forum: Fasteners
Topic: Attaching keel
Replies: 0
Views: 5457

Attaching keel

Been working for 4 months and got the frames all in place, checking the lines and making the last gussets and cleats to fasten them. All goes well and today i suddenly asked myself how the keel is attached to the frames? The original documentation for this boat (Hacker 20') says it should be through...
by Joris
Fri Apr 19, 2013 11:50 pm
Forum: Tool Talk
Topic: oldie
Replies: 3
Views: 2955

Re: oldie

The gap is 18". It took an old skateboard and some egyptian technology to move onto it's place :mrgreen: So i have wood, i have saved enough on this machine to order Poxy Grip and some raptor-stuff with a gun at Glen-L, i also bought a planner, a belt sander and for my birthday a friend gave me a li...
by Joris
Thu Apr 11, 2013 11:34 am
Forum: Tool Talk
Topic: oldie
Replies: 3
Views: 2955

oldie

Finally got the workshop empty and found a cheap bandsaw that is big enough to resaw my 4" wide planks. Actually i can put 4 planks on top of eachother as it is pretty huge :D . Took me a complete day as it weighs around 800kgs but at 250euro's it's a bargain i think 8) Big saving in my tool budget ...
by Joris
Mon Apr 01, 2013 11:22 am
Forum: Power Boats
Topic: angled hull framing
Replies: 6
Views: 1464

Re: angled hull framing

I can see the advantages of triangulation in construction of cranes, roof trusses, motorcycleframes etc. because the remain naked. When used in a boat where the skin gives most of the stifness and the frames are only there as support, i'm not sure the gain will justify the extra work. How about maki...
by Joris
Wed Mar 20, 2013 1:12 pm
Forum: Boat Power
Topic: Turbo Question
Replies: 4
Views: 2407

Re: Turbo Question

I'm not really familiar with these Cummins engines but are you sure they can be swapped to water-cooling? I thought they had oil-cooled-only turbo's?

Joris
by Joris
Thu Mar 07, 2013 2:44 pm
Forum: Wood and Plywood
Topic: re-using old mahogany
Replies: 16
Views: 6489

Re: re-using old mahogany

Bill, could you share the numbers of your propellor too please? On to the next stage ; i was pretty convinced that plywood (cold-mold methode) was the way i was going to go but i'm still curious about the double planking methode that is mentioned on the Glen-L-site. I ran into this link that explain...
by Joris
Wed Mar 06, 2013 11:26 pm
Forum: Boat Power
Topic: Biscayne-power?
Replies: 4
Views: 3315

Re: Biscayne-power?

I ran into a few stories about these engines and quickly decided it wasn't the right choice for me and that the price problably reflects it's reputation :D

Thanks for the rant though, it's always funny to hear someone talk about an engine when it nearly drove them crazy :mrgreen:

Joris
by Joris
Wed Mar 06, 2013 2:05 pm
Forum: Wood and Plywood
Topic: re-using old mahogany
Replies: 16
Views: 6489

Re: re-using old mahogany

John,
thanks, for the info. It's kinda hard to get the good plywood overhere...

Bill,
any idea on weight for that engine? 35-40mph seems like a nice speed. Any idea at what speed is needed to plane?
I'm looking at 2L and 2.2L diesels that are giving 140hp at 3500rpm.

Joris
by Joris
Wed Mar 06, 2013 12:44 pm
Forum: Wood and Plywood
Topic: re-using old mahogany
Replies: 16
Views: 6489

Re: re-using old mahogany

I will be laminating a few pieces together next week to get a feel for the proces (i only have experience with Carbon and Kevlar laminating) That should give me the chance to check out the strength and see how good the screws hold. I'm a long way from any planking so i will stick to what clearly has...

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