Glenn,



Before I toolk the plunge I worried about that as well, so I initially tried to get the X-track system of RWo but they really didn't want to go through the trouble of shipping me one. I hate the RC tracks and cars and so I was left with only one option, the 19 mm I-track of Ronstan. I took the risk feeling that it would be hard pressed to be as bad as the RC system.

I'm so happy I took that risk, because I have never found a single issue with the 19 mm I-track (as long as you use a 6 wheeled car or larger), this includes angling the mainsheet loads. The car just keeps operating smoothly and with low friction even when run out to the ends.

The car takes these skewed loads by pressing one side of the car (wheels) to the bottom flange of the I-track (that is why it is an I shaped track) while pulling the other side to the top flange. Like this it can withstand very high skewed loads and remain alligned. The flanged themselfs and the wheels are slightly angled relative to eachother so the car aligns itself along the track and doesn'r rub against the wall in the middle. From looking at the pictures it doesn't appear that it will do so but it really does.

I warmly recommend these I-track systems of Ronstan. Phill Brander first tried them with the simple 4 wheeled car but these can break when loaded up fully on a F16 and since then we are using the 6 wheeled cars on the mainsheet system (4 wheel cars on the selftacking jib), these have held up beautifully ever since.

http://www.ronstan.com.au/marine/product.asp?ProdNo=RC61912

I'm sure the 4 wheeled car will hold up to the loads on any beach cat designed. Which to get will be your choice. On the F16's it appears we are settling on 8:1 mainsheet purchases.

I seem to remember that Booth measured some 450 kg load on a Tornado mainsheet when fully cranked on. (= 993 lbs)


Good luck,

Wouter