Gareth,
the Trifoiler at Speedweek was 'piloted' by David Tugwell who's on this forum and usually sails a Stealth F16 at Datchet...
Unfortunately just as it looked as tho' they could go even faster (in previous years the same Tri has recorded 30+) they broke a beam and and foil.
He's looking for spares or an incomplete Trifoiler here:
Trifoiler wanted