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.
Posted by: Dim - website: http://
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