# Search Results

1. Post

### Will dispersed ballast help prevent snap roll and tetter tottering?

Not in general. Things are more complex. There are no fundamental differences between pitching and rolling, although the axes are perpendicular to...
Post by: Heimfried, Oct 7, 2019 in forum: Stability
2. Post

### Will dispersed ballast help prevent snap roll and tetter tottering?

It is the rolling acceleration (not the rolling amplitude) which is stressing if high and eventually causing seasickness. And the acceleration is...
Post by: Heimfried, Oct 7, 2019 in forum: Stability
3. Post

### Calculation of mass centre of cargo from Stern

Another try, another result. DISPM = 10,000 t POF = 1,480 m² LCG = 49 m LCF = 55 m MGL = 91.5 m m = 300 t T(diff,max) = 0.3 m rho (sea) = 1.025...
Post by: Heimfried, Sep 18, 2019 in forum: Stability
4. Post

### Calculation of mass centre of cargo from Stern

Following this link I was amazed because my knowledge was different (it was based on a faulty written lesson of a nautical school). Anyway - the...
Post by: Heimfried, Sep 17, 2019 in forum: Stability
5. Post

### Calculation of mass centre of cargo from Stern

My statements above contained mistakes, sorry for that (source of this mistakes were papers from a nautic school). I need some time to rethink this.
Post by: Heimfried, Sep 15, 2019 in forum: Stability
6. Post

### Calculation of mass centre of cargo from Stern

Robert why do you think, a change in draft is causing a shift of CoG? The the location of the CoG is a property of the whole ship in a given...
Post by: Heimfried, Sep 14, 2019 in forum: Stability
7. Post

### Calculation of mass centre of cargo from Stern

This is not to happen. Because the center of flotation deviates from center of gravity (so there is a lever), putting load in the CoF creates a...
Post by: Heimfried, Sep 14, 2019 in forum: Stability
8. Post

### Calculation of mass centre of cargo from Stern

Hi Robert, some thoughts, leading to a far more different solution. The question only makes sense if you compare the initial draft at stern...
Post by: Heimfried, Sep 10, 2019 in forum: Stability
9. Post

### paddleboard and kayak teardrop shape

This is a very likeable approach to me and I wish you luck.
Post by: Heimfried, Sep 7, 2019 in forum: Boat Design
10. Post

### Enclosed buoyancy compartments on wood/plywood boats

I'm building a plywood 6 m motor kat with 4 buoyancy compartements. My solution is to seal the plywood inside (and the wood of the frame) with...
Post by: Heimfried, Jun 27, 2019 in forum: Boat Design
11. Post

### Frenchman sets sail across Atlantic in a barrel!

He defined the crossing as done.
Post by: Heimfried, Apr 30, 2019 in forum: Boat Design
12. Post

### Hull shape/DIY plans recomendations for planning 16' 40Hp boat?

Hi S V, as I understood you will use HDPE sheets to build the boat. In which way will you join the sheets/planks? Welding? (As far as I did read...
Post by: Heimfried, Apr 12, 2019 in forum: Boat Design