What type of Hull

[dlp_90731]

I was hoping some one could help me out with my hull type. From what i been reading it's a Planing Hull. Is this in fact a true Planing Hull? Thanks ahead of time. Pictures attached.

 

[Bondo]

Re: What type of Hull

Is this in fact a true Planing Hull?

Ayuh,.... I'd say it's a deep V, planing hull...

 

[Tahorover]

Re: What type of Hull

V-drive or straight?

 

[Philster]

Re: What type of Hull

Strakes. V Hull. Planing hull.

 

[dlp_90731]

Re: What type of Hull

Straight shaft with 16" x 16" prop and has a Velvet Drive trans.

 

[dlp_90731]

Re: What type of Hull

It's tippy and when you get a few guys running around it really is.

 

[GTS225]

Re: What type of Hull

Agreed.....planing hull. A displacement hull would be shallower, so as to spread the load out over a large area quicker. A shipping barge is an extreme example of a displacement hull. A flat-bottom is also a displacement hull, even thought there is a shallow V shape forming at the transom.

Roger

 

[southkogs]

Re: What type of Hull

Ayuh,.... I'd say it's a deep V, planing hull...

... what he said.

It's tippy and when you get a few guys running around it really is.

Probably at low speed. Up on plane she's likely more stable, yes?

 

[dlp_90731]

Re: What type of Hull

Yes at higher speeds she is smooth and stable

 

[Mischief Managed]

Re: What type of Hull

Ayuh,.... I'd say it's a deep V, planing hull...

Maybe it's the original deep-V planing hull. Is that a Bertram?

 

[dlp_90731]

Re: What type of Hull

1973 Livesay made in Southern California. Some were used as Port Police boats.

 

[Texasmark]

Re: What type of Hull

You have the best hull for a smooth ride at higher speeds in higher seas. It will cut through the waves rather than bounce you across the top of them. Only problem with them is, as said not as stable as a flat bottom at rest with a lot of weight moving about, deep V at transom does not have the lift that a flat hull has so it takes more power to get on plane and hold....lifting tabs you have on the transom counteract some of that, and heavier usually that flat bottom, but that's not all bad....with added weight and a deep v you have 2 things going for you and a comfortable ride.

One thing about displacement hulls is that they are usually limited to speeds below planing speeds (15 mph roughly) and the water never leaves the transom, like it does on a planing hull as you are getting to planing speed where it starts moving away and at speed forms a V somewhere behind the boat, faster you go farther out it is.

Great choice.

Mark

 

[Ned L]

Re: What type of Hull

I think the proper term you are looking for is 'semi-dispacement'. As has been alluded to, a displacement hull is limited to hull speed (1.34 x sq. root of waterline length) as it cannot climb over its own bow wave. A semi-displacement hull can climb up over its bow wave and 'plane' along displacing less than its full mass. A true planing hull is something like a three point hydroplane that actually skims along on top of the water, not really displacing much water at all.
Your boat is a deep V semi-displacement. Yes, they can be rather tender when sitting in the water, but more comfortable at higher speeds in a chop.