I think pretty much every outboard boat builder has, at one point or another, wondered:
"Do I modify/reinforce my transom?"
I bet even the most novice of boat builders can recognize that the transom is a place where a lot of weight and stress gets transfered to the boat from the engine. Its not hard to imagine your outboard motor shaking the seams apart or even getting ripped off the boat if the motor leg hits a rock or sunken log.
I've heard (or read) it several times that "There is no such thing as 'too much' reinforcement on a transom.". It makes sense, as the last thing any builder wants is to deal with a failed transom during operation.
However, it does beg the question "How much?" If there is no such thing as too much, then where do you draw the line between 'effective' reinforcement and 'overkill'? I actually don't have that answer, and I am betting that answer is very conditional like:
- Is the boat designed properly in the first place?
- Are you making design modifications to the original plans?
- Are you using the MAX recommended engine size/weight (or something larger)?
- What materials are you using to build your transom?
- What kind of water conditions are you expecting to operate under?
In my case, I've done my best to pick a reliable boat designer (Glen-L of course), and build very close to 'spec', particularly on the transom and based on some of the design articles listed here.
Malahini Design), there are over a dozen customer submitted photo's of other builds that show a variety of engines and transom reinforcements.
There is also the Glen-L forum, where you can search the history and ask questions about what others have done or experienced. However, just like every other forum, its a good idea to know the specifics about any sucesses or failures before assuming they might apply to your boat build.
One thing that boat builders can probably learn from the most is the experience of other boat operators. Something I cannot offer as I am a novice builder and operator. However, there are members of the boating community with pearls of wisdom to offer in regards to transom design.
If you are such a person, and so inclined as to share your experience with the rest of us, then I encourage you to spend a few moments and post your reply here.
Replies can include success stories or failure issues. Try to include:
- What design/model did you use?
- What modifications did you make to the overall boat?
- What modifications did you make to the boat transom?
- Was your engine larger or smaller than MAX design?
- Did your transom ever fail?
- If yes, how did the transom fail and in what way?
- If yes, how did you repair it, and did the repair work?
- Any suggestions you might have in regards to transom design
Ideally, this post is to serve as a resource for future outboard boat builders seeking answers.