Here are a few useful definitions which may be of help:

Power divided by the voltage = Current.

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Watts divided by Volts = Amps

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A GALLON OF WATER = 10LBS.

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A GALLON OF WATER = 0.1604 CU FEET

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FEET TO METRES  X 0.3048

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KNOT TO MILE PER HOUR X 1.151

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HOW MUCH ANTIFOULING PAINT DO I NEED?

LWL X (B D) = UNDER WATER AREA

LENGHT OF WATERLINE MULTIPLYED BY THE BEAM DRAFT

Chertsey Marine,

Penton Hook Marina,

Staines Road,

Chertsey,

KT16 8QR

Tel:  01932 565195 

Fax: 01932 571668

CHERTSEY MARINE

The Chandlery on The Thames