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Old 01-28-2014, 07:49 PM   #1
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Default calculating HP and speed

Some people like to add a second outboared engine for emergency.If you were wondering what outboared HP would work for your boat, as a second emergency engine.this formula might help http://www.go-fast.com/boat_speed_predictions.htm. And i was reading that a 10% of your boats original HP can be sufficient for a second emergency motor.Example,a 220 HP boat will need about 20 to 25 HP engine for emergency to get them home while offshore boating.And in a lake will need one HP per one meter .SO if your boat is 8 meter long,you will need 8 HP for emergency motor.
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Old 01-29-2014, 03:34 PM   #2
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A SeaTow or Boat US membership is significantly cheaper. Look at the effective range of any gas powered express cruiser. Then look at the tow range of a tow service. It is doubtful you will ever run out of tow range. Any kicker on a express is going to ugly and in the way. If you're truly determined to have redundancy, then look into a model with twins. Short of a fuel problem, it is highly unlikely both engines will die at once.
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Old 01-29-2014, 08:14 PM   #3
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I agree with you 100%.,But for people who live a broad,and tow service is not available,and for boaters who made up there mind to add a second outboared,the information stated above, might be a good start to figure out the hp needed for your addition.
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Old 01-30-2014, 12:11 AM   #4
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Quote:
Originally Posted by mojoe View Post
I agree with you 100%.,But for people who live a broad,and tow service is not available,and for boaters who made up there mind to add a second outboared,the information stated above, might be a good start to figure out the hp needed for your addition.
Good info... Thanks for sharing for those that need it.
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Old 01-30-2014, 06:20 PM   #5
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Originally Posted by Phillbo View Post
Good info... Thanks for sharing for those that need it.
You are very welcome,and good to be part of this forum.
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