New member - Projet 420 add transom for trolling

[pgb]

Hello folks, I am a newbee to RIBnet, have a 2002 Zodiac 420 Jet Rib (Projet), has 700 Yamaha jet, 80hp, was a former tender out of Vancouver area.
Have tried trolling but not too smokey at lowest rpm. I have a Tohatsu 2.5hp outboard for my small aluminum jonboat which I thought to mount on back platform of the Zodiac.
Question: Has anyone out there added a transom to the back platform of a ProJet? Perhaps something like the Intex Motor Mount kit?

Thanks,
Peter

[pgb]

Perhaps I could have said "how to add a motor mount to the stern swim platform of a projet?"

[gtflash]

Has it got a proper transom? Nice lump of wood in it maybe and some transom knees, or stringers? I don’t know if jet boats have structure in the transom. Lots of outboard mounting brackets, or tender brackets that can easily take the weight of a 2.5, but I’d have thought you need something more than thin fibreglass to fix too.

Even the rear step looks quite beefy

[Last Tango]

Originally Posted by gtflash

Has it got a proper transom? Nice lump of wood in it maybe and some transom knees, or stringers? I don’t know if jet boats have structure in the transom. Lots of outboard mounting brackets, or tender brackets that can easily take the weight of a 2.5, but I’d have thought you need something more than thin fibreglass to fix too.

Even the rear step looks quite beefy

I'd think the rear step is maybe to low for an "off the shelf" bracket but a custom made one probably wouldn't cost much more or DIY. I notice the transom has a ski tow eye so it must be reasonably substantial. Maybe a stay over to that.
As you say the weight and thrust from a 2.5 isn't going to be particularly difficult to accommodate.

[pgb]

Thank you guys for those replies. I agree a DIY to obtain a correct height above the platform for the shaft length, perhaps a stainless plate below and above the fibreglass platform for secure strength. I am thinking two SS "L" shaped supports about 24 cm. tapered down toward the upright wall where the ski hook is, a wood or composite plate between the brackets and for added strength if needed two rods to that wall. I did some google looking and saw some simple setups on swim platform of yatchs and sailboats. I think I have found a solution to work on. Many thanks!

[pgb]

Wow, life zooms by with stuff!! here a few years later, here is what I have done, see pictures. 2.5 in, angled aluminum; double bonded 3/4 in. treated plywood sealed; SS bolts. Works great. Strong enough for 9.8hp. Also setup for Minn Kota Endura Max electric so I can access small lake fishing also.