Cracks in other boats as well !
Steve,What you have described is nothing new to the Hunter trailer sailors. I am aware of cracks in the 170's, 212 and possibly the 216 can't remember for sure. there have been several post on the subject of cracks and repairs here on this forum, I also would refer you to dennis@sailing-obsession.com under the "tack room" where there is an article about repairing this type of hull.As to your question "Is this a strees crack" I would say yes and here is why. can you think of anything that is maufacture where forces (internal or external) or weight is not a factor and it would crack on its own ?After seeing several of these cracks on an older H-170 I belive the average person can make these repairs and I'm sure we all would have different ways to go about the repairs but it would be to lengthy to do so on the forum.What you don't want to do is merely fill in the gap with a resin or expoxy, there is no strength in that, you need to add some thin fiberglass cloth to it to get the strength to it.before you start your repairs, read some of the post on this subject, by the way , Kryon white paint works well for touch up.how about a picture and keeping us posted ?One thing I do when my boat is sitting on the trailer is to release the tension on the bow strap to eye hook and my tie downs on the stern cleats, I snug them down only when I tow and not to tight.Glenn