Hull resistance

What do you mean?

 

Not the same as speed. But as speed doubles resistance of the hull quadruples. There is for sure a relation.

 

You stated that resistance:...." increases quadratic with speed...."

Where does this come from?
Is it your impression, or you read it somewhere, or what ...?

 

R(in Newtons)=(0.5*rho*V^2)*S *Cz
rho=Fluid density
S=Surface of the object
V=Fluid Velocity
Cz=Drag coef
That's common knowledge, the best evidence is a CDF rookie like me know it for a while

 

Actually, that's only half the equation. And realistically your Cz should be CF to align with ITTC standards.
https://ittc.info/media/1767/structured-list2008.pdf
Anyway, standard practice for all small craft hull forms and propulsor types was mostly settled back in 1970's with the 1971 publication (and 1977 revision) of Small Craft Engineering, Resistance, Propulsion and Sea Keeping, Pub No. 120 from UofM. While some more modern paper dive into the niches and specialty hull forms, this publication covers all the basics and even has a section on waterjet performance by Jacuzzi.
Small craft engineering: resistance, propulsion, and sea keeping https://agris.fao.org/agris-search/search.do?recordID=XF2016073850

 

In fact I made a little confusion between Ad Hoc and Leo, I thought I was answering to Leo.
For more details on the drag subject, especially when it comes to guess the aero drag of the Foiling Moth 's Hull or AC75 hull's drag when on the foil, I think the "bible" is Sighard.F.Hoerner's book, but it is a thick book for rookies.

Cheers

 

Hoerner's two volumes are nice for the historical/theoretical workup (they date from pre-1960's), but there are better, more modern, texts for just foiling and cats. If it it just coefficients, I'd choose Belvins over Hoerner; more comprehensive. You could also explore the SNAME T&R library.
T&R Bulletins & Reports | SNAME https://www.sname.org/publications/T-and-R-technical-research

 

The drag coefficient may vary with speed, depending on the situation. If the drag coefficient varies with speed then the drag does not vary quadratically with speed.

 

Erwan's formula would be useful for a submarine. Boats operate at the interface of two fluids of very different density and viscosity. Wave making must be taken into account. Also, dynamic lift affects resistance.

 

Is it necessary to distinguish between dynamic lift and some other type of lift?