Name of Yacht: Elrhuna Request date : 14 03 2018 Launch year :1904 Designer : Alexander Robertson Design year : 1904 Builder : Alexander Robertson Class name : 4 Ton Sloop Usual place of sailing : Clyde / Glencoe boat club Scotland
| Declared dimensions : Lenght Over All (LH) = 8.50 m Length on the Water Line (LWL) = 6.00 m Max width ( Bo ) = 2.20 m Draft (Tmax) = 1.40 m Displacement factor (FD) = 2.638
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Correction factor calculation
Type of rigging : bermudian sloop = 1 Hull: classic 2 C2 = 0 Kref = 0.187 C2a : 0.039 Monotype : no = 0 Vintage bonus (build): 1904 = -0.046 Vintage bonus (design): 1904 = -0.046 Cumulative vintage bonus: -0.092 Hull material : traditional wood = -0.03 Mast material : wood/aluminium/steel = 0 Boom material : wood/aluminium/steel = 0 Mast or boom penality : 0 Mast or boom different of original : no = 0 Other spar different than original : no = 0 Sails material : type 2 = 0 Propeller type : folding or feathering = -0.04 Winches ? : with = 0
Correction factor (C)= 0.877
| BERMUDIANS Max foresail area: 8.17 mē Jib or staysailJL = 5.80 ; LPG = 2.70
BERMUDIANS Main total area: 21.98 mē Mainsail P = 9.10 ; E = 4.20
Larger downwindsail area: SL / ALE = 7.10, SL / ALU = 7.10, SMG / AMG = 4.00, SF / ASF = 5.00 Area: 24.85 mē
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