Low friction underneath hull?

[srislash]

I feel like it helped my fast mono I had and my Rivercat. All my fastest boats have been scuffed.

Yup, pretty much just ‘something I do’. A little scuff is part of the FighterCat’s regime.

[JestDanny]

Teflon treatment? Nothing sticks to Teflon very slippery, treat both top and under side, slippery on top for better air flow, water slides smoothly under hull.

[skiking1739]

One of our Club Members here in the Carolinas uses Rain-X religiously on the underside, and we know it works on the windshield. My two cents.

[dmitry100]

Just the 1 rear-most ride pad, or the one after that one as well?

[TRUCKPULL]

Hyspeedkote

This is what a lot of the big boats (Mono,s and Cat.s) use.

Larry

[srislash]

Hyspeedkote

This is what a lot of the big boats (Mono,s and Cat.s) use.

Larry

I’ve been wanting to try SpeeKote for a heck of a long time. I have a bigger mono build coming up. Maybe I’ll try it on that for a before and after. As I recall Larry, we can’t get it in Canada.

[TRUCKPULL]

I’ve been wanting to try SpeeKote for a heck of a long time. I have a bigger mono build coming up. Maybe I’ll try it on that for a before and after. As I recall Larry, we can’t get it in Canada.

https://www.google.ca/search?q=hyspeedkote&tbm=isch&source=iu&ictx=1&fir=0jV7IaxW2gTeRM%253A%252CH1QJ5gAL5uvxUM%252C_&usg=__M6oKuMSr1Ie7jJnVz7Lz0Yr3T14%3D&sa=X&ved=0ahUKEwisipODnKvaAhVF7oMKHU4ZDwcQ9QEIMjAB#imgrc=0jV7IaxW2gTeRM:

I have a 1.5oz spray can that I bought years ago here in Canada.

Larry

[eric_laermans]

What matters a lot is getting the hydro-prop to work as it is supposed to be .... i.e. not IN the water, but slightly above. That means you have to raise the transom, by e.g. catching some pocket of air underneath the transom. Need some evidence?

[Fluid]

This isn’t evidence. The thread is not about prop position, but about reducing friction between the hull and the water. Hydros have very small contact area when at full song, but in corners they do wet down. Monos wet down a lot. What has proven to work is eliminating the glossy surface contacting the water by scuffing the bottom with sand paper. The surface should not bead water but instead be thoroughly wetted. Wax is certainly not the answer.


.

[eric_laermans]

The thread is not about prop position, but about reducing friction between the hull and the water. Hydros have very small contact area when at full song, but in corners they do wet down.

Reducing friction between hull and the water is all about getting some air underneath the hull and especially the transom. No contact of hull-surfaces with water reduces way more friction (sum water/ air) than eliminating the glossy surface.

Then there is another important aspect often overlooked... of course, the hull scratches the water, but very often props are dragged through the water too. You can spend hours "eliminating the glossy surface", but this will bring you little to nothing if the prop is still being dragged through the water!