Thanks guys for your responses. Beachball57 appreciate you doing a recce to get across the railway tracks. Kiwi307, the stays on the moth mast go 3/4 up the mast, small stays on mast post. Well it was productive.
We've had two productive test runs. The test area wasnt flat, paddock with short grass and a windshadow from trees along one side, clean wind from one side across a lake. We had two test days with wind gusting 15 to 20 knots. We could easily manage one wheel up in the gusts. Quick acceleration, dry mouth stuff.
I removed my windsurfer rig after breaking the mast, replaced with a stayed moth mast and sail. Much better control.
We found the front wheel bearing set up we had on two of the yachts was binding. We rebuilt that with access to a machinist mate.
Our lady pilot got herself out of control in a gust and collided cleanly between two fence posts, rear beam rebuild. much laughter.
The shipwrights wooden yacht with stayed moth mast and sail was the star performer in the conditions, quick acceleration, but lifts easy due to shorter back beam.
They need a bit more flogging!
There were four yachts and a mob of people. Getting ready for another test run as soon as the next southerly comes along. foto of one of the rebuilds.