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Old 02 August 2012, 08:15   #11
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Hard sand - either the solid plastic wheels or a suitably inflated pair of inflatables wil lroll over that - it's as good as concrete (unil the wheleel load is enough to sink it!).

Soft sand is a PITA. Inflatsable wheels o nthe rolley at a ridiculousl;y low pressure will disperse the load a bit and stop it sinking. I have seen big dinghies (wayfarers & the like) use double tyres at about 4 psi. Other option could be to ghave twin inflatables, one set relatively firm (for the hard sand) the other at a silly low opressure to give increased surface area in the soft stuff.

I guess there will be an optimal hard / soft ratio to minimise friction on the weet stuff & stop it going under in the soft.
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Old 02 August 2012, 14:31   #12
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Interesting front wheel dolly unit,any other pictures,thinking of making something like this myself.Even small outboards are heavy SOB's!
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Old 02 August 2012, 21:16   #13
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Yes, please show some pictures. I have looked all over for a front wheel dolly like that one.
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Old 03 August 2012, 00:39   #14
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Looks like a modified trailer dolly.
Trailer Dolly
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Old 03 August 2012, 11:23   #15
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Originally Posted by Peter_C View Post
Looks like a modified trailer dolly.
Trailer Dolly
Yes,i would say you are spot on
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Old 03 August 2012, 12:45   #16
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I've been periodically struggling with boats up and down a shingle / sand beach (in E Sussex) for forty years now (if you include offering unhelpful advice from a pram).


The Supacat launcher made for the RNLI is probably perfection.
Hi Hugh, where do you launch in East Sussex? We may well have struggled up many of the same beaches!

Here are some pics of my wheels - if anyone needs to fit launching wheels there are a cinch to make and very simple - a piece of SS channel with a matching piece of SS box - pivot in the middle and a lockpin to secure - a M10 SS bolt with delrin spacers/bushes and some nylock nuts. No welding necessary - just a drill and saw. Super sturdy and easy rolling. You can see the pneumatic wheels I tried which were useless, bigger ones may work better but the w-i-d-e and smooth solid wheels in the pics work very well on every surface; sand (hard and soft), shingle, pebbles etc.
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Old 24 June 2013, 03:53   #17
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Hi Hugh, where do you launch in East Sussex? We may well have struggled up many of the same beaches! .
Pevensey Bay. Shingle is a nightmare - wheels sink in, it gets really steep and it almost always means launching into waves.

Right: NO LAUGHING anyone!! If you might laugh, look away now.

Rubbish pictures, but I once made some 4-wheel bogies that fitted on the axles of the launching trolley in place of the wheels.



Worked OK but the tyres made it float and the handle got in the way of going bow first into the water.



Ended up making this so that it went in bow first and came out bow first.



Worked a treat but rotted away after about 8 years.

I will add these myself to save anyone else the trouble:
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