Hi everyone,(adsbygoogle = window.adsbygoogle || []).push({});

I'm hoping for some help in calculating the speed of a boat I am planning to build, I'm not looking for a precise speed just an indication of what it is likely to be to ensure the pumps I would like to use are powerfull enough.

The boat is a catamaran hull with the hull dimensions 150mmx100mmx620mm (per hull), the remainder of the boat will be above the water line. Overall the weight will be 8.5 Kilos, the propulsion system I would like to use is made up of two bilge pumps, each bigle pump is capable of moving 42 litres a minute so combined 84 litres per minute. The pump output pipe is 19mm in diameter, which i guess fits into the equation somewhere... :surprised

Is someone able to tell me an approximate speed in either kph or mph? I don't even have a clue where to begin

Thanks in advance,

Tai

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# Dumbo needs help

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