210 dead rise question

[Tailwaters]

So I see the dead rise at the bow is 20 degrees. Anyone know what the dead rise is at the transom?

 

[Julian]

Never seen that spec published.....curious why you are interested?

Dead rise is typically measured at the transom (after doing some research)....wouldn't be hard to measure.

 

[2kwik4u]

"By the book" the 190/192/195's have a "zero" deadrise at the transom, which is why I think Yamaha only publishes the bow number. I can say without a doubt that even though the deadrise numbers on the two boats are identical (our old vs new), our Yamaha rides 100x smoother than our old Rinker.

I think hull design has changed a lot in recent years, and a "variable deadrise" approach has been taken to many hulls. More at the boat and less at the transom. This would lead to a better cut through waves/wakes, and a higher top speed (or less power required).

Playing - Yamaha AR210 (2011-) - | Yamaha Engine | Powered By BoatTest.com | 524 <--shows the AR210 deadrise/Transom at 20deg.

Jet Ski: 2005 Yamaha AR210 <--That one says 18deg

 

[Julian]

By the book" the 190/192/195's have a "zero" deadrise at the transom,

Why do you say this? (learning about deadrise a lot today)

 

[swatski]

In a twin inboard jet boat, the intake loading is a major consideration as far as hull design, limiting deadrise, and preventing stepped hull design (that otherwise crept from racing boats into everything, recently).

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[2kwik4u]

Why do you say this? (learning about deadrise a lot today)

The hull is actually "flat" on either side of the pump intake for a few inches. The transom has sort of a \_/ shape to it instead of a \/ shape to it. Clearly it doesn't ride like a flat bottom boat would ride, however it doesn't carry the tip of the "V" all the way from the bow to the transom like a traditional hull would.

*edit* you can see the flat section here: