Thanks for the leed. Have been considering positioning props on AMA's and come up with the following pros - if all else fails can use for steerage. particularly in marina - cons/ issues - balancing power output while underway - power drain on hydraulic system (more you spread it the slower each part...

Had been considering using 6.1M x 2.2m Sheet but unsure how to handle. Would reduce welding considerably, At worst will use 2.4m x 1.2M sheet - easy handling but significant increse in welding. Can get the 6.1M sheet 1.2m wide or at 1.8m wide. the handling of the longer sheet is the problem so am de...

oops

http://www.edhorstmanmultihulldesigns.c ... _3view.pdf

the link
cheers
S

Heres the link to the yacht. is a PDF file. The beams have to be strong enough to enable the boat to be lifted in/out. and minimize twisting. I will be following the glass/ply design which will give me overkill in strength ONCE I've figured out what's necessary alternative for Keel and cross beams. ...

Many thanks Steve. As you can tell I've got this post in 2 areas. One for overall project (welding project ideas) and one in welding tips for specific help. My apologies if this is confusing. I have difficulties in NZ trying to locate tech books so am picking the brains of every engineer/novice and ...

thanks for that idea. had been considering but cant figure out how to hold it in place for the verticle welds. hense thinking that positioning the welds over the strakes/framing may enable the strakes to become the heat sinks. Having seean the videos on heat sinks though, heat sinks appear that they...

Many many thanks, gives me a lot to think about, can see it will end out as a bit of everything as I go through. Given the info you've provided I'm considering making sure the strakes are part of the welded area... similar to a lap joint. they should provide some support as well as a minor heatsink....

Many thanks for that, will have to try to locate. the specific things I'm trying to ascertain are is it possible to alleviate warpage using a jig. would it be better to do intermittent welding i.e 2inch weld with 8 inch space until next weld will the pulse mig resolve this for me will the edge of th...

I am new to welding but someone has had a bright idea that I build a yacht out of Aluminium. The project is a 65ft cruising trimaran. This is planned to take about 6years to shell (fit out will be an ever ongoing - same as a house, once you finish, her indoors wants a change to decore). If your goin...

I am new to welding but someone has had a bright idea that I build a yacht out of Aluminium. The project is a 65ft cruising trimaran. This is planned to take about 6years to shell (fit out will be an ever ongoing - same as a house, once you finish, her indoors wants a change to decore). If your goin...

I am new to welding but someone has had a bright idea that I build a yacht out of Aluminium. The project is a 65ft cruising trimaran. This is planned to take about 6years to shell (fit out will be an ever ongoing - same as a house, once you finish, her indoors wants a change to decore). If your goin...