There are a number of things that influence the top-end speed of a kayak propelled by any electric motor system. The kayak model, the size of the payload (including the kayaker), and the conditions on the water, have the most influence on attainable speed. We’ve measured top-end speed with an iPhone-based app, called Speedometer (by Stanislav Dvoychenko), and have calibrated with a number of other GPS systems for accuracy. We’ve found top-end speeds (MAX) to exceed 7 mph, for even larger fishing kayaks (e.g. A.T.A.K.), and average speeds in the range of 4.5 – 5.5 mph, with the PowerUp Propulsion System, at full-throttle.
It’s important to note that kayaks were designed for paddling speeds, and you should exercise caution when running at speeds in excess of 4 mph for an extended time. It’s very easy to roll your kayak at these speeds if you make quick, intentional (or accidental) sharp turns. Also, you’ll extend your time on the water, and probably the life of your motor, running at lower speeds.
Please remember…”it’s not how fast you go, from point A to point B. It’s about what you discover along the way!”