Maximum Speed of a Single-Hull Displacement Boat
Hull Speed = 1.34 * (LWL)1/2
If your speed log is disabled, you can calculate the boat's speed by determining the time it takes for a wood chip or other floating object to pass from the bow to the stern. If you want to retrieve the object, attach a string to it.
Boat Speed = (60 (sec/min) * 60 (min/hr) * length of boat in feet) /
( 6076.1 (feet/nautical mile)* seconds for chip to pass)
Sail Area Displacement Ratio
This ratio indicates how fast the boat is in light wind. The higher the number the faster the boat.
|> 24||Performance Racer|
Sail Area Displacement Ratio = Sail Area / ( Displacement Volume )2/3
Displacement Volume in Cubic Feet = Weight in Pounds / 64
Hook and pull action slices entangled lines from your prop or rudder!
It's programmable! Don't let your batteries go low without warning
Shuts off or turns on electrical devices automatically
Non-lanolin 100% synthetic formula US Navy spec.
Compact and rugged Designed for many years of operation. Daylight sensor turns Anchor light on/off Made in USA!
On Sale through February. MSRP
$371.00, Now $310.00!
Keep your batteries plates clean & fresh.
Works automatically each time you charge!
Jan '09 Practical Sailor's Highest Lumen Output!The Brightest output LED system, pleasing color,
broad focus, very low battery draw. Fits into vertical and horizontal fixtures! Zero radio interference!
Everything you need to upgrade your Yanmar,Perkins or other saddle mount dual foot alternators to the most efficient charging system for AGM or flooded cell batteries
Charge faster Charge better!
This is the best pole/handle for our line slicing Hooknife. Extends your Hooknife's reach by 6'