RAIN VPP

This VPP solver self developped with the help of Applied Mathematics Master students of CAEN university. It is not an usual VPP program based from empiric measurements but a global solver of the equilibrium of the ship on all axxis with adjustable precision and steps.

- Takes into account : canting keels, daggerboars, twin rudders, a couple of foils,  moves of the crew and ballasts along and aside the ship, automatic depowering of sails or progammed reefs levels, symetrical or assymétrical spinnakers.

- Targeted heeling angles can be programmed for given wind angles.

- Feeded from lightweight stability curve and hull drag curves.

- Correction factor table on hull drag table to adjust back test datas with sailing performances while ship used

- Incorporated rig and underwater profiles performances, reef program, plot entered datas.

- Plot speed polar, calculates times on given trajects and conditions while taking into account VMG and laylines.

A free simplified version will be downloadable from this site in the future for student use.