Trailer Sling lift

[Exit door]

Hi I am looking for ideas, designs or plans for a heavy duty sling lift

My boat is 18 ton 46 feet

I am considering a trailer sling lift I have a friend who is an engineer and can build it but would be nice to have a head start on plans or ideas and designs I could take to him.

Manual old skill way and or hydraulics

Open to other ideas of hauling out yacht as well.

Yes we have a boat ramp into deep water and yes the sailboat will just be travelling within 150 yards of this ramp.

I have really searched the internet hard but can’t seem to find anything substantial on the subject.

Any ideas or links, plans , designs greatly appreciated

Cheers in advance

Kris

[Exit door]

I was considering a bigger version of the photo above

[RaymondR]

Why do you want to hang it in slings rather than just stand it on the keel?

[Exit door]

Hi Raymond because I need to get her out of the water and then plan to tow her 100 yards and set her on a cradle or stilt system . Refitting

[psk125]

You are probably aware of this. Before Travelifts, yards used to build a support frame on top of a solidly built timber frame foundation. Didn’t have to be fancy, just strong. They’d slide the heavy frame (no wheels) down rails (wooden, even) under the boat at high tide and chock the boat firmly into it as the tide went out. Then they’d skid the whole thing to wherever they wanted in the yard, using temporary wood timber rails or rollers and whatever motive power (oxen, winches, come-alongs, tractors, yard crew with crowbars...) to where they wanted to leave it for the winter. Getting yours 100 yards from the haul site might take a while, but it could still be done without messing up the route permanently. If the frame was strong enough you could use slings, but it might be simpler to build wooden supports, poppet-like, spiked to the timber frame and not have to make the frame have to withstand the sideways/inward pull of slings. (See “My Song” and it’s demise due to lack of sideways support in transit.)