Zest0004

Comment by Robert Hughes on February 14, 2021 at 2:21pm

Hi Thierry,

Yes, the angles are adjustable.  I wanted to make it easy to line up the hulls for fixing the crossbeams in place before launching.  I've attached a couple of pictures and you'll be able to see the outer bolt on each support runs in a slot.  Once the crossbeams are on, I slacken all the supports so the trolleys can rock from side to side on uneven ground.  You can also see eyes for straps that go around the hulls, and for lines to move the trolleys fore and aft.

The framework for the bases is 2x4 like yours, and the tops are 3/4 (18mm) exterior grade plywood.  I'm not sure what type of particle board you've used, none of the particle board available here would stand up to immersion in water.  One weakness I've found is that the 1" aluminium axles are not stiff enough, so I have to launch the boat before adding engines, anchors etc.  The wheels & tyres are also a bit marginal...

An unexpected problem I found the first time I used the trolleys was that they are so buoyant it's almost impossible to pull them out from under the boat once it's floating.  To fix that I drilled a small hole in each base board to let the trapped air out, and added 4 x 10kg lead blocks to each trolley.  That was just enough.  I need to be able to carry the trolleys easily in the back of my car, and I can lift each lead block off before taking the trolleys apart.

I hope that helps.

Cheers, Rob

Comment by Robert Hughes on February 15, 2021 at 4:04am

I like the look of your wheels, the tires look more robust than mine.  What type are they, where did you get them?

Comment by Robert Hughes on February 15, 2021 at 4:42am

Merci beaucoup !

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