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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SCAD TM2 Tank Monitor for Two Tanks (sensors sold separately)
Monitor two tanks with the touch of a button.
$135.00
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Signal Mate2NM BiColor Bow Light with adjustable mounting bracket
An excellent LED Bow light. Easy to mount Made in USA!
On Sale Now. MSRP $242.00, Now $195.00!
$195.00
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WiFi SignalMakerô Onboard WIFi hi-gain amplifier and base station
Make your WiFi fast and reliable with our 9 dB hi-gain base station
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Signal Mate 3 NM LED Anchor Light
Compact and rugged Designed for many years of operation. Mounting bracket included Made in USA!
On Sale Now. MSRP $224.00, Now $185.00!
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SmartLock outboard motor lock for engines to 35/40 HP

Keep your engine safe from thieves!
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Coolnet Sailboat Hammock - Unique 3-point design sets up fast and stores easily
If you want a really nice place to lounge or sit you need this hammock! that you can rig in a few minutes
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SCAD TM1 Tank Monitor with Sensor.
Monitor holding tanks and water tanks with the touch of a button.
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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
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