Ruud Schmidt brought up the topic some years ago (see «projects»), and he made a pledge:
For most disabled people with a physical handicap the experience of waterbiking is impossible, speaking frankly.
Even when it is possible to get aboard, the drive unit has to be managed by a pair of good working legs.
And if you don’t have good working legs (or no legs at all), you won’t be able to ever use a waterbike.
We are going to change this situation!
We are going to build a waterbike with drive units for hands and/or feet which can be operated by everyone.
In June 2014, we saw
the first HandWaterbike on the water.