The current design for enabling people to paddle outriggers with the use of one arm had a little draw back in that the paddle kept rotating. Without a second hand on top of the paddle there was no way the paddle could control the angle at which the blade dug in to the watter.
Funny little aside, at the time talking about the problem I shot an idea out that instead of hanging the paddle from a flexible pole by a bungee, fix it via a bolt to the pole. I forgot all about that and then over the winter set about with the design describe below. All happy with the prototype I proudly presented to the team at the first camp this year only to find they'd implemented the bolt-pole idea and it works a treat. That said, we're going to continue developing the adaptive handle as its already built.
Step 1: rough template
In the sketch below you can see the two basic components of the prototype. Firstly the user places their forearm in the horizontal section and secures with neoprene bands. The paddle is attached to the prototype above and below the hand.