2.5m Trailor, lifting 3.2m double hull on one side, to fit into 2.8/7 hall(width)

Hey guys, ok, this is a conceptual, and toughy...

I have decided to get cracking on this bad boy..

http://ikarus342000.com/ECO75page.htm

My problem is this. Where I live, my driveway and gate is 2.86m wide.

The vessel I am going to build, is 3.22m wide. hmmmmm, yeah.

Known for my crazy conceptual ideas... I am naturally wanting to build the thing anyway... and "hack" the trailer... so that it can lift the cat on one side, vertically, to fit the space. This will never be trailered in this state, but just for small space manauvers. Even if I move to a different house, there will always be somewhere where there is a gate of this approximate size.

I am contemplating many different ways to achieve this, but I would like some input from the crowd.

The height of the boat will obviuosly play a role, as well as the width when its being put vertically. Its 3.2m wide, so fully on its side, it will be that + the trailer height.

The idea came to mind after seing a pic of a cat being craned out of the roof of a building, hanging from its one hull.

My simplest idea, is to have an L shaped crane arm at the front of the trailer, stretching to the absolute middle of the boat. From there, connecting to and lifting one hull, with the remaining hull, sliding on a channel on the trailer bed/frame.

This way, the craft will be pulled up sideways, and the bottom hull will be pulled to the center of the trailer, as well as the top hull being pulled to the center of the trailer. This in effect would cause the trailer not to be lop sided (off balance) when moving it. This also solves the problem of the height of the boat creating more width on the down side as its lifted "swiveled" sideways, as its hull is pulled inward to the trailer centre.

My concerns are:

*stresses on the bottom and the top hull, when being "hung/pulled" sideways/verticall?
*stresses on the cable and pullies
*securing it with a slotted arm system as it moves up? Better idea? I am not a fan of being under or near a 1ton hanging object without it being secured.

Sure you can probalbly use hydraulics, if thats your field, but I am really looking for simple.

I am attaching two basic drawings.. |The boat will be +/- 800kg dry

Flame / fire away.

 

P.s. with this configuration, I am thinking, and I am no mechanical engineer, that by "housting" it, the force on the hulls are equalled, as the hoist is keeping it in the air, but the channel supporting the down hull.

I don;t know, and yes, I'm crazy...

 

Side view

 

Onbviously two sliding channels will be minimum...

 

A little off topic, but, did you check out Richard Woods power cat designs? http://www.sailingcatamarans.com/

Back on topic, have you studied how they load the big unlimited hydros on road legal trailers?

 

Hey.

I have had an extensive look at Wood's designs. He however does not have what i am looking for. Only one powercat, the scooter. I almost purchased its plans a while ago, and had extensive discussions about it with woods via email, but its not what i am looking for.

 

Build a welded steel frame, bolt jointed and rectangular, around the fore and aft ends that will rigidly support the hulls. Work out where the centre of gravity is and attach a round bar pivot pin at each end, maybe 2" dia. that will be outwith the fore and aft extremities.

Erect two braced hollow section posts at each end of the trailer. Drill 1-1/8" holes up both sides at 2" centres. Fabricate a sleeve that will pass over the posts and attach a receptacle plate to receive the pivot pins. Make 4 @ 1" pins with L bends at one end that will pass through the posts underneath the sleeves.

Make a lever jacking device that uses the 3rd hole below the sleeve and lever up one end at a time by 2". Make sure you always have one pin installed under the sleeve. Once you have all the weight on the two pivots you will be able to rotate the vessel. When you can rotate it 90 degrees then lower it down so that the frames are sat on the trailer.

 

Well there we go...

http://www.ulhra.org/Photos/2011/Fo...ron/3kd3p83o75Z15U35R5b6311318beb1bcc1d05.jpg

http://en.wikipedia.org/wiki/File:Miss_Jarvis.JPG

No where do I get plans or pcis to study... I can find basically no info on those trailers or their mechanics...

Any ideas?

 

duhm duhm duhm...

 

Your plan seems solid... I have a couple of questions tho, that I' don;t understand waht you mean... I will be bugging you shortly.

Sorry, my new rule, no boat stuff while I am supposed to be completing work stuff... *sigh*

Cheers