deadrise on a boat

[fasternu]

Sorry for the silly question, but can someone explain to me what exactly the deadrise is on a boat, and why the different angles are so important (for instance, the difference between a 12 degree or 17 degree)? Thanks in advance.

[jentz]

GOOGLE WORKS GREAT

[PerchJerker]

Good diagram, and I'll elaborate on it a little.

Boats with deeper or steeper deadrises will be much smoother riding in rough water, but will be less stable / more tippy when fishing, or in calm water, etc. I think the classic example of a steep deadrise boat are the center-console fiberglass boats that are so popular with saltwater in-shore fisherman.

Low deadrise hulls, and even the medium deadrise and variable deadrise hulls, are much more stable fishing platforms, not very side-to-side tippy at all ---- but will pound the [snot] out of you when running in rough water - ie. Lund, Alumacraft, Crestliner, etc.

Hope that helps .......

[Ufatz]

Perchjerker: Ya done good.

[paceman]

Wow Great Information!

[swampbuck]

I can fill in a bit from when I worked for a boat company The Variable degree dead rise is the best you start out with a 12 degree at the transom and it increases as you move to the bow. this does a couple things low degree at transom allows the boat to plane quickly with less HP and the deeper v cuts the wave where the boat impacts it the bow.

Welded aluminum and fiberglass boats have this ability the riveted hulls do not

have this ability

[PTocko]

[quote=swampbuck

Welded aluminum and fiberglass boats have this ability the riveted hulls do not

have this ability

[gregg52]

no way can you shape tin like fiberglass

thats kinda of a no brainer

[Esox_Magnum]

Only tin boat I know shaped similar to a glass boat is the Tracker Tundras, those are stamped hulls. I think Boeing does the stamping??