Veleros que aguantan el mal tiempo y los que nunca lo haran

[guillermogefaell]

Originalmente publicado por roda

Muchas cracias Guillermo, entiendo que somos muchos haciendo preguntas . Por cierto, ! Que preciosas son nuestras RIAS GALLEGAS y cuánto las echo de menos! espero pronto volver por ahí

Sí que son bonitas las Rías, sí

Algo sobre el HR 312, CON TODAS LAS RESERVAS del caso:


INPUT

Hull length (m) = 9,42
Waterline length (m) = 7,70
Maximum beam (m) = 3,08
Floatation beam (m) = 2,77 (asumed)
Total draught (m) = 1,62
Body draught (m) = 0,51
Moulded depth (m) = 1,59
Freeboard (m) = 1,08
Displacement (kg) = 4.900
Ballast (kg) = 2.200
IJPE area (m2) = 44,05
Air draft (m) = 13,7
Heeling arm (m) = 5,68
Engine power (HP) = 23,12
I (m) = 12,40
J (m) = 4
P (m) = 11
E (m) = 3,5
Height keel (approx.) = 1,11
Length keel (approx.) = 3,15


OUTPUT (with some assumptions)

(2Lwl+Lh)/3Bmax Ratio = 2,69
Lwl/Bwl Ratio = 2,78
Length/Draught Ratio = 5,81
Beam/Draught Ratio = 1,90
Beam waterline/Body draught = 5,44
Ballast/Displacement Ratio = 0,45
Displacement/Length Ratio = 299
Sail Area/Disp. Ratio = 15,52
Sail Area/Wetted surface = 2,11
SA (metric)/ Power (Imp.) = 1,91
Power/ Disp. Ratio (HP/Ton) = 2,14
Hull speed (kn) = 6,74
Potential Maximum Speed (kn) = 7,21
Velocity Ratio = 1,07
Efficient motoring speed (kn) = 5,53
Capsize Safety Factor = 1,83
Motion Comfort Ratio = 28,2
Heft Ratio = 1,07
Moment of Inertia (kg*m2) = 12858,92
Roll Period (sec) = 3,19
Roll Acceleration (G's) = 0,07
Stability Index = 1,04
Angle of Vanishing Stability (º) = 125

Upright Heeling Moment (kg*m) = 1269,01
Righting Moment at 1º (kg*m) = 53,31
Heeling Moment at 20º (kg*m) = 1078,68
Righting Moment at 20º(kg*m) = 956,74
Dellenbaugh Angle (º) 14kn wind = 23,81
Wind pressure coefficient = 0,89


Initial Metacentric height (m) = 1,56
Asumed angle of vanishing stability (º) = 125
Asumed downflooding angle (º) = 110
GZ at downflooding angle (m) = 0,21
GZ at 90 degrees (m) = 0,39
Area to downflooding (m*deg) = 66,74
Area to AVS (m*deg) = 68,31


STIX = 38