Extended Transom Pods - Info, Builders, Expertise etc etc

[uripper]

Hi All

Am considering buying an old Haines that has had the transom completely rebuilt /modified with an aluminium pod carrying a 130hp 2stroke - looks very professional etc (taking it for test run soon - will check handling characteristics then).

Meantime, am concerned about the transom /pod conversion quality & stress effects on the hull (there's a lot of weight hanging out a long way from the transom that is completely unsupported when on the trailer).

So am looking for people in SEQ who are knowlegeable & have some expertise in this field - thanks in advance.

MalM (uripper)

[uripper]

bump - hoping somebody will know something about this topic or knows someone who does

[skeeter]

Its a little difficult to make comments on something like this, without seeing it (photo's), dimensions, etc.

A few things to you may want to think about,
How old is the extension?, usually with age you can see weld fractures, panel stretching and buckling. These are good indicators about the life and condition of any aluminium boat.

You say the quality of the work looks good, find out who did the work and ask their opinion or get it inspected by a professional metal fabricator (one who works with boats).

Check out some dealers to see the type of trailer they are using on extended transom models.

Or if its a really good price, check out cost of either modifying the current trailer or getting a replacement. Might be peace of mind anyway.

Hope this helps.
Peter

[BM]

Ful depth pods - waterline extension of the hull which supports the weight of the outboard

Stepped or non bouyant pods - create a canti lever effect that can sometimes be balanced out by shifting weight forward or fitting trim tabs.

Some boats will be fine with a non bouyant pod and many won't. Many good sterndrive boats have been destroyed by being converted to a pod setup. The higher centre of gravity of the outboard setup tends to make them unstable at rest (or less stable at rest than they originally were).

Make sure that inside the boat they have added "knees" that are glassed in from the transom wall back to the stringers as this aids in supporting the additional weight. Without these I would be rather concerned.

Cheers

[Stuart]

We did the same exercise a few years ago with not so good results. We had a 200 merc on the back of the pod extension and the end result was a purposing boat and quite a bit of cavitation. Old Haines don’t seem to like pod extensions all that much. My recommendation would be to take it for a good hard run and turn it hard to left and right and see how it behaves.

Stu

[stick]

Same deal with the porposing on my 20ft berty with pod and 200 yammy. When you test try and find some flat water and hold her open for at least 30 sec . Never shows up in the chop and only when theres a crowd watching.

[uripper]

Skeeter, BM, Stuart, & stick

Many thanks for the info /advice /ideas.
Will take all that on board especially when doing water test.
Shall report back on this thread to let you know how things went.

thanks again, Uripper (MalM)