We have two Challenger trimarans brought over from the UK in 2014. The Class was designed specifically to allow those with disabilities to sail and race independently and on equal terms with able-bodied sailors. We have adapted our boats so that the sailor can be accompanied by a "Buddy" who will help out as much as the sailor wishes.
The fact that the boat does not heel over or capsize makes it particularly suitable for those with low upper body strength and balance.
Further details about the boat can be found at the Challenger Class Association website.