I'm thinking of a pilot who died whilst crossing the channel in a flight with Judy Leden - who wrote about it in her autobiography. I don't have a copy with me right now so can't check the details.
I lent my copy of Flying with Condors and never got it back, but IIRC, Judy's group was on a charity flight in support of paraplegic pilot in a Shadow. The pilot who died was in a trike.
Information on aircraft converted for Disabled Flying Training