I think the trimaran is a promising, but neglected platform for Junk rig. Bunny Smith, sadly no longer with us, carried out a great deal of research and development on the rig. In his newsletter / magazine article on his junk rigged trimaran (page 28, No. 33) he says:

"For 15 years I have been researching and developing the junk rig. My empirical methods have of necessity meant that progress has been very slow because of the time it has taken to find the right sea conditions to establish accurate, reliable and repeatable performance fibures for comparative purposes.

'Nymph' (his Quorning Dragonfly 800) was bought to speed things up because her light weight, low drag hull allows her to develop very high wind speeds in quite moderate true wind conditions."

He goes on to say that "Nymph really likes her junk rig and I have no doubt whatever that it is a wholly suitable one for trimarans."

It seems likely that Bunny Smith documented his work, given his commitment to the Junk Rig project, but does any archive still exist. Do any of his colleagues and friends have any information?

I believe Nymph was sold to someone outside the fraternity (shame) who discarded the rig and replaced it with some lesser arrangement. Perhaps, somehow, somewhere, the Nymph will re-surface, metamorphose into a new generation and take further the promise Bunny Smith worked so hard to develop.

Bunny Smith put a junk rig on his trimaran - there is something about it in the earlier magazines, which you can probably find by rummaging through the index.  And someone in the USA has a 15 footer with a split junk rig.  Look in the members' boats directory searching for 'tri'.