## Andante Notes
## Power and Performance
The calculated speeds listed are approximate and considered accurate on the
listed displacement. Changes in displacement (or weight) will modify the
figures and will not give the speeds listed. All speeds listed are in knots per
hour. To convert to miles per hour, divide by .87. Note that the horsepower is
given as SHAFT HORSEPOWER (SHP). Since most motors are listed at BRAKE
HORSEPOWER (BHP), it will be necessary to reduce the BHP to SHP. A reliable
factor to multiply the BHP by is .70 to determine the SHP. All speeds assume
that the proper gear ratio and propeller size is used. For twin engines, divide
the SHP figure by two in order to determine horsepower required for each
engine.
SPEED/POWER CHART |
Displacement = 29,200 lbs. |
8.1 KNOTS |
63 SHP |
8.4 KNOTS |
73 SHP |
9 KNOTS |
94 SHP |
9.5 KNOTS |
115 SHP |
10.2* KNOTS |
140 SHP |
*Maximum hull speed |
## Prismatic coefficient: 64.8%
Pounds per inch of immersion (ppi): 1735 lbs. will sink the hull an additional
1".
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