there have been several kits for Hobies built. Not sure of the details on this Hobie Tiger, other than it was set up by Swedish sailing mag
quote
We put foils on a Hobie Tiger F18 and started to try foiling in late November, with 2 degrees Celsius and 16-18 knots of wind. On the second test session we manage to get some good foiling and the top speed reached 32.1 knots. We started with foils on daggerboard and rudder originally designed for a lighter boat, eventually the rudder foil broke but the boat continued to fly. After 30 minutes of sweet flying around feeling like the Kiwis the daggerboard foil broke as well and the fun was over.You can get a good Tiger for 5-6k (cheaper than a 16 as they are no longer race competitive as the F18 class development moves forward). that's a lot of fun for $, once you have some foils made...
or for a bit more -
www.thebeachcats.com/forums/viewtopic/topic/14695/start/0