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LED lighting, soundproof, Sailor's Solutions Inc.
LED lighting, soundproof, Sailor's Solutions Inc.      
Marine Calculators
Hull Speed
Maximum Speed of a Single-Hull Displacement Boat

Hull Speed = 1.34 * (LWL)1/2
  
What's your boat's length of waterline in feet?  
 

Boat Speed
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)
How long is your boat in feet?
How long does it take for a light object to reach the end of the boat in seconds?
 

Sail Area Displacement Ratio
This ratio indicates how fast the boat is in light wind. The higher the number the faster the boat.
10-15Cruiser
16-20Cruiser-Racer
21-24Racer
> 24Performance Racer

Sail Area Displacement Ratio = Sail Area / ( Displacement Volume )2/3
Displacement Volume in Cubic Feet = Weight in Pounds / 64
What is the area of your sail in square feet?
How heavy is your boat in pounds?
 

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MLC™ Masthead Light Controller
Turns ordinary anchor light into distress signal providing an important safety feature.
$99.00
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Razor sharp HOOKNIFE clears lines fast!
Hook and pull action slices entangled lines from your prop or rudder!
$64.95
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SCAD LVA Low Voltage Monitor with Alert & Relay
It's programmable! Don't let your batteries go low without warning Shuts off or turns on electrical devices automatically
$79.95
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Ultra Tef-Gel - Anti-Seize Lubricant for fastening stainless screws to aluminum
Non-lanolin 100% synthetic formula US Navy spec.
$15.49
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Velcro® Brand Marine Grade Hook and Loop,
2-inch-wide, waterproof adhesive-back. Sold by the foot in white or black

Solve onboard mounting problems fast! A little goes a long way!
$4.99
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PT90™ Propane Solenoid ShutOff Timer
Provides additional safety measure in case the user forgets to shut off the propane solenoid manually.
$99.00
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Portable LED cockpit and anchor light with daylight sensor and cigarette lighter plug
Be safe - Light up your cockpit and keep an extra anchor light on board Doubles as a cockpit/ utiltiy light
$34.95
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No-OX-ID A Special Electrical Grade Conductive Grease and Contact Lubricant
Use on all electrical contacts to prevent corrosion. Rated number one by "Practical Sailor" Dec. 2010
$12.95

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