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Multichine 31

According to the stability index established by the European Union ( STIX),  which evaluates the seaworthiness of monohulls, our design Multichine 31 belongs to category A, in which a boat is considered adequate to withstand a force 10 gale with average seven metres wave heights and eventual fourteen metres wave heights. 

It is important to state that most production yachts of her size aren't capable to comply with STIX 32 or above, to be classified in this category. Next we show a resume of the calculation and the STIX number for the MC31

STIX Multichine 31 = 36.3 – Category A

Multichine 31
Stix = 36,32
- Base Lengh Factor:
- Inversion Recovery Factor:
Lbs = 8,66
F4 = 0,98
- Displacement-Length Factor:
FIR = 0,98
FI = 0,95
- Dinamic Stability Factor:
F1 = 1,01
Agz = 55,20
FDL = 1,01
F5 = 1,14
- Beam-Displacement Factor:
FDS = 1,14
Fb = 2,20
- Wind Moment Factor:
F2 = 1,01
Vaw =
FDB = 1,01
F6 = 1,00
- Knockdown Recovery Factor:
FWM = 1,00
Fr = 5,09
- Downflooding Factor:
F3 = 1,32
F7 = 1,33
FKR = 1,32
FDF = 1,25