Invertor conversion efficiency is only high at a single point in a complex curve. Example a Trace Invertors, 1500 watt can have a conversion of 91.7% but at its constant or continual use position rating ( bit more than a 1/3 or in this case 600 watts is less than 47% conversion Efficiency. ----- Original Message ----- From: "Harvey G Wilson" <harveywilson@juno.com> To: <montgomery_boats@mailman.xmission.com> Cc: <montgomery_boats@mailman.xmission.com> Sent: Sunday, November 28, 2004 8:12 PM Subject: Re: M_Boats: dc vs ac drive
Hi Richard..
However you could use an inverter to produce ac from 12v dc, they have about 92% conversion efficienct.<<
That you could. IIRC, 1hp is about 750 watts. Dunno how this would translate into thrust..guess it would depend on the propeller<GG> Inverter cost would be high if it'll take 2hp to drive the boat at a reasonable speed..say at least as well as a 55 pound thrust trolling motor.
Then, what would the motor size be?? bigger then the 55 pound trolling motor, I'll betcha<GG>
Interesting thought, but I'll stick to my noisy Seagull.
Harvey/ Ga
M-17 Stargazer #294
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