Program can run on windows XP or Win 2000 operating systems (as indicated on web page).
Regarding drawings, they are not incuded. The...
From demo program you will see full range of numerical results.
You will get Pitch and Ae/Ao for given diameter, power, number of blades and...
I have programmed Savitsky in program SeaPower. It comprises 28 resistance methods + propellers.
you can download demo program...
Try Series 64. It is good for narrow hulls. I have it programmed and we succesfully applied it for one catamaran.
see my demo program...
Try my demo-program SeaPower www.sea-power.net
Download my demo-program SeaPower. It comprises Wageningen B series, Gawn-Burrill, Segmental propellers and 5 types of Nozzle props....
Contact ABS, and they will suggest you which rulles to use.
you can download it using Internet explorer.
If it would be that easy to calculate resistance what would be doing all these towing tanks and institutes.
Just to have ide of variety of...
I wrote this formula just to explain influenece of wetted area on resistance.
Kafali method for stepped hull is not that simple of course, and...
Kafali method gives total resistance, not only frictonal.
There is a very old paper on stepped hulls : Kafali V-forms.
Applicable for v shaped planning hulls and very high speeds. Effect of steps is...
New propeller can be calculted, but you should give some data:
Boat : Length on water line
Breadth on wl
Try my demo program www.sea-power.net
, if your propeller fits in demo limits.
Consult any clasification society rules for stability (LR, DNV, BV, ABS...)
Siu C. Fung is one resistance method for fast boats. I have it programmed in SeaPower.
Wageningen B series propeller
Send me some data of the boat:
Lwl, Bwl, T, T-transom, Cb, LCB.
Hull shape (V, U ) = ?
P= 450 W,...
Look at this web page:
The diameter of the propellers is o.k. To absorbe more power for the same diameter you have corresponding pitch and area of blades....
have you sean my calculations? Any comment?