In the June 2010 issue of Seakayaker magazine there’s an interesting report on the Ultralight. The interesting thing is the extra speed they got from their kayak by adding simple streamlining the the shaft of the Ultralight.
It makes a big improvement—increasing the speed from 4.25 knots to 5.5 knots—and just by adding a simple foil to the shaft. It follows a similar pattern the shape of the leg on other Torqeedo models and it begs the question of why didn’t Torqeedo do this already? Especially as it is a feature of every other model.
Anyway, you’ll want to read it yourself—click here to go to this article on Seakayaker website.