As the builder in question, I feel I need to reply to this.
The sleepers are placed on the trailer for launch, not only to get the crane straps out, but also to ensure the base plate clears all the trailer beams. The trailer is a marina one, nothing to do with our company.
The sleepers generally slide away from the boat at launch, or often stay within the parameters of the trailer, as the others did, unfortunately this one didn't, and it was not spotted.
The sleeper did then pop out with some force as John describes, during the maiden voyage. All seemed well after the tiller was re-seated, and there was no apparent cause for concern as the boat ran quietly and smoothly from then on for many miles/hours.
When we were alerted to the noise, we got an engineer straight out to look at it,if I remember correctly it was on a weekend, and we and he have been out on occassions since....frustratingly, the noise wasn't apparent often whilst the engineer was there.
We replaced the prop last week, and I have now had a full shebang of prop shaft and stern gear, bearings included, couriered to us for full replacement of all posssible problem areas next week. The shaft will be examined later, our priority is to get a new one fitted, and then look at it once we have the boat back and mobile.
It has been a problamatic noise to resolve, and we have spent quite some time checking different points on the boat. We are giving as much support as we can on this issue, as I am sure John will agree, and whilst we accept it is frustrating and worrrying for them both, it has also been a concern for us. As all was inline and new on launch, we do not view this as a 'builder' problem as such, but never the less, have not walked away from the problem, but have, and are continuing, to do all we can to resolve it. We are charging £0.00 + £0.00 vat for our time or travelling.
Hopefully this will all be resolved on tuesday when everything is replaced.
We value John and Ali as both customers and friends, as we do all our customers, and have a reputation for good customer aftercare....even if the issue is not directly of our making, it is one thing we feel is the most important part of maintaining a good business.