Common view new.
Dim

Dim: Common view new.

The job above the form of a hull, picking up of the engine(-es) and primal account of the prop's parameters has been continued. At the given stage was parsed about 8 miscellaneous variants of main engine(-es) + gear(-s) + prop(-s). I have understood what to climb up at the resistance's "hump" - no special sense. Therefore at present, in the first working approaching we have: Length wl = 14 m 520 mm Length pp = 14.121 m WL beam = 3.165 m Draft at LCF = 0.9 m LCB = -0.555 m (from midship to aft) Volume displacement = 18.985 cub.m Block coefficient = 0.325 Midship area coefficient = 0.689 Waterplane area coefficient = 0.758 Prismatic coefficient = 0.654 Wetted area = 50.546 sq.m 1/2 angle of entrance = 12.85 degrees Required speed = 9,5 knots FrL = 0.41 FrB (beam) = 0,88 FrV (volume displacement) = 1,01 Engine's model - "Perkins Sabre" M115T - 84 kW at 2400 rpm Transmission's model - ZF 45-1 ( gear ratio 2.2 ) Design max speed = 9.5 knots Dopt = 0.641 m Ne = 84 kW = 114 hp Ne-15%Ne = 71 kW = 97 hp n prop = 18.2 rps P / D = 0.71 ADR = 0.71 The resistance calculated by van Oortmerssen method. All data - preliminary.

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Dim, Sep 3, 2003
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