Ejected From SR4!!!!

[cuttlefish]

I think that the boat can be forgiven if it wobbles a little at 90 mph, don't you?

[Nos4r2]

Just spotted ths thread-bloody hell!

I did come very close to being ejected on a few occasions from my Sr4...

[Mollers]

Originally Posted by Cookee

There is a video on our site of me having a little wobble at around 90mph, and the boat is 24' long - it is a function of speed over length IMHO!

My boat is 24ft, it'll begin to 'stroll' from one rail to the other if I do silly things with the trim switch when flat out.

[PeterM]

Originally Posted by cuttlefish

is chine walking a phenomenon limited to smaller ribs. Has anyone experienced it with larger ribs?

Mine (7.5m RING hull) starts to try at WOT on a flat day - at just over 60mph though so I dont often get there & when I do I dont stay at WOT too long due to the cost of the petrol to keep it there !

My 4m avon (adventure)is all over the place at 30nts if trimmed out to far.

[Cookee]

Originally Posted by cuttlefish

I think that the boat can be forgiven if it wobbles a little at 90 mph, don't you?

Absolutely - the difference is I have been racing that boat and its predecessor since 2000 and am familiar with its handling although I have to admit that was the first time I had been that fast, there was a sidewind but there were a full safety crews at both ends of the course and one in the middle. You can get most boats to chine walk, it's what you do about it that counts, and how well the boat is set up - steering play is one of the biggest causes of not being able to control chine walk together with a combination of the general set up of each individual boat.

I think the lesson here is if you're going to do something for the first time, or try and push the performance envelope, either in terms of speed or conditions, then don't go alone and take the necessary precautions!

[Downhilldai]

Originally Posted by Cookee

I think the lesson here is if you're going to do something for the first time, or try and push the performance envelope, either in terms of speed or conditions, then don't go alone and take the necessary precautions!