well you need enough hp to get the skier out of the water so between 25 and up is good. i ski behind a boat with 270 and its plenty
You'll want 50 to 60 hp. Less than this it's harder to get out of the water. You can ski with a smaller engine such as a 40 hp but like I said it's a lot harder.
It depends on your height, weight, size, typical speed, and experience. You can see a size chart here:
http://waterski.about.com/od/tipsslalombegin/a/slalom_sizing.htm
9,000,000 horse power is the correct answer to this question
25 hp and up
50 hp
To answer this question a voltage is needed. 1 HP = 746 Watts. Amps = Watts/Volts.
One hp is approximately 756 watts.
50 HP
"http://wiki.answers.com/Q/How_can_you_calculate_the_hp_that_needed_water_pump"http://wiki.answers.com/Q/How_can_you_calculate_the_hp_that_needed_water_pump
18-3085 sierra
To answer this question the pump's voltage is needed.
To answer this question the motor voltage and amperage is needed.
To answer this question the voltage of the motor is needed.
The generator should be about ¾ hp.
50GPM
3 amps on 120 volts is almost 1/2 hp. To be exact 0.48 hp, that's why I said almost 0.5 hp or 1/2 hp. So say you are thinking of buying a 3 amp grinder or table top sander and you want to know about how many HP (Horse Power) it is, the answer is 120 volts X 3 amps = 360 X 0.00134 = 0.4824 HP which is almost a 1/2 HP you can do the math from there if its a 6 amp motor then its almost a 1 HP motor or to be exact 0.4824 X 2 = 0.9648 also almost 1 HP. This is if you are on 120 volts. If you are on 110 or 125 volts its about the same.