My question is, do you think this toy would be practical for the lake?
Manta5 pedal-electric hydrofoil takes to the lake
The Manta5 has an aluminum frame, two carbon fiber hydrofoils that provide lift, and a 400-watt motor that augments the rider's pedalling power to turn the propeller. Although it has no actual hull, it does have buoyancy modules that keep it afloat when stopped. Additionally, unlike the case with some hobbyist hydrofoil bikes, it's possible to get back on and get it planing again, if you should dismount while out on the water.
So, when can you buy one? Well, the XE-1 should make its public debut in mid-November, then be available for pre-sale within New Zealand starting late this year or early next – delivery is estimated for late 2018. Pricing has yet to be established, although it will reportedly be "similar to that of other quality water sports products." An international roll-out will follow.
A couple of the prototypes can be seen in action, in the video below.