Chaps, it seemed to me at the time an odd thing to ask on a forum with little experience of that type. The obvious method surely to answer the question would be to ask the design bureau of Zenair? 🙂 Unless they’re being really unhelpful.

Or perhaps now come to think of it, the LAA (nee PFA) forum (but you need to be a member to post)

Incidentally I saw the Vice-Chair of the LAA the other day. He’s the guy who highlighted the poor efficiency (traffic:area) in the Coventry airspace proposal. Despite his day job for a UK airline, it would seem he has an interest in GA and protecting it. Top man.