I finally took the RC trimaran out for its maiden voyage.

All in all I am very happy. New boat usually takes a while to sort out the rig and stuff.
The tri sailed beautifully, it's well balanced and tracks straight, no noticeable weather helm or lee helm either for that matter. Steering is very responsive but not so sensitive it's quirky, the keel and rudder seem about right. The rig is fairly well balanced, but the boat is so light it stops head-to-wind on most every tack. I need to rake the mast aft a bit more, but the sailplan seemed to balance pretty well, but the temporary sails started stretching and blowing out quickly - it was just too windy. Big gusts, was blowing 15 with gusts above 20 out on the lake.
It accellerates like crazy! From a standing start - in 5 feet it's going faster than my US One Meters ever went!
So I believe the sailplan is viable, and will build better sails and it should be good to go.
All in all, a great proof-of-concept. For a one-off "that-looks-about-right" design, it was very good first time out.

Capsized a bunch of times, but as luck would have it we didn't get any capsize on film nor any of the best high speed runs.
Between gusts the wind typically died to nothing, so it was either hove-to during a gust, or not moving for most of the vid shots. Murphy's law of photography, the best stuff happens when the camera is off....

(experimented with posting - can't post a vid and no way to host one...)