To those who are considering converting from fossil fuels to solar/electric outboard, I have found the most interesting website regarding a conversion done on a Compac-19. This fellow even has the math for calculating the thrust and speed relative to any boat displacement. Check out his web-site at; http://www.geocities.com/Yosemite/Forest/2727/flicka_calculator.html If he only had an e-mail addy so I could thank him personally. Dave