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
Keep your batteries plates clean & fresh.
Works automatically each time you charge!
Make your WiFi fast and reliable with our 9 dB hi-gain base station
Compact and rugged Designed for many years of operation Made in USA!
On Sale Now. MSRP
$246.00, Now $199.95!
Charges deeper, faster and without maintenance!
Will not spill or leak!
Use the same technology that unlocks your car door to turn your deck lights on before you board from up to 75 Yards away - Makes boarding easier and safer!
It's programmable! Don't let your batteries go low without warning
Shuts off or turns on electrical devices automatically
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!
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!