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Old 09 July 2013, 09:10   #11
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With the relatively light loads load you are dealing with why not just use a rope & pulleys?

Like I mentioned in yesterday in another thread, be sure the pulling force is applied directly to the legs of the launching wheels and not to the bow handle!

Also, even with what seem like light loads, never use a tow ball as an anchor point for winches and tow straps. This has caused many deaths.
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Old 09 July 2013, 11:20   #12
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That's an interesting thought. If I could half the effective load then we should be able to manage that. We've got a full adjustable tow hitch set-up on the 110 so no issue with finding a safe anchor point.

Can you elaborate on what would kit would actually be needed and any more tips on doing this in practise? - I dropped out of physics A level after a few months brain-frying...
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Old 09 July 2013, 14:36   #13
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for any pulley system count the number of times the rope goes back and forth(excluding the one you pull on.)

thats both the reduction in effort and the increase in length of rope you'll have to pull.

2 = 1/2 the effort, x2 the distance to pull (pull 2 feet boat will move 1 foot)
3 = 1/3 the effort, x3 the distance to pull (pull 3 feet boat will move 1 foot)
4 = 1/4 the effort, x4 the distance to pull (pull 4 feet boat will move 1 foot)

etc (and yes i know its not exact, friction etc will change the effort but its only a guide)
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Old 09 July 2013, 15:22   #14
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Quote:
Originally Posted by seasdes View Post
I use a boat trailer hand winch at home mounted to a post. I have replaced the standard cable with stainless steel cable as used on sailing boat shrouds. I have about 30 m of cable on the winch and has workewd fine for over 25 years.
This works quite well
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Old 09 July 2013, 18:57   #15
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This looks interesting and might work well in my situation?

Video is a bit cheesy/bull*****y but you get the idea.

Boat Trailer Hand Marine Winch The Amazing New Skywinch | eBay
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Old 09 July 2013, 21:39   #16
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This thread makes me want to get back on my boat mover project. I started to convert an electric wheelchair into something that will drag my boat around on the beach...via remote control. Unfortunately remodeling/upgrading/tiling the bathroom takes priority.
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Old 09 July 2013, 23:11   #17
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Unfortunately remodeling/upgrading/tiling the bathroom takes priority.
Oh my... this calls for an intervention
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Old 10 July 2013, 01:54   #18
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Oh my... this calls for an intervention
We did have the boat out twice over the 4th of July weekend

I also spent three of the four days working on the house. Along with felling and bucking a few trees tonight.
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Old 10 July 2013, 15:30   #19
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Anyone help with this some more?

Recommend a hand winch or what capacity I need or tried the Skywinch or how to put together the pulley thing PT referenced above?
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Old 10 July 2013, 16:30   #20
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RIBase
Hello

I use one of these - 4 TON HEAVY DUTY HAND CABLE PULLER WINCH | eBay

and no I didn't pay that for it! However I only have to move the beast a few feet.

The sky winch looks like a simple toy and should work ok, looks like a sailing winch to me mounted in a posh bracket - should be able to knock your own up.

I've also seen a winch such as this one used - 1200 LBS 65 FT MANUAL HAND WINCH TRAILER / BOAT /MARINE | eBay

Usually mounted on frame which is then attached to an anchor.

The pulley system is simple - take rope from trailer, to anchor, back to trailer and pull. Will need a small pully (or two) or block such as these Petzl Minder swing cheek pulley P60 Rock Climbing High Ropes Working At Height | eBay

PULLEY 35/26 mm steel DOUBLE roller rock climbing rescue block tackle new | eBay

Google z drag for loads of pics

Google Image Result for http://www.scagrotto.com/pmp/z-drag.JPG
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