I have to have a pedestal made - why not a tabernacle?

[Jdege]

Originally Posted by rslifkin

Even the narrow ditch sections of canal aren't as tiny as some of the European or Canadian canals.

The British narrowboat canals have locks with seven-foot beams.

[Buzzman]

Chotu
Here is Dannys FB page. As you can see he is using a 'modified four-part mechanism' which is based on the Farrier tri folding arms (or vice versa, if you see what I mean).

Danny can probably give you the Excel doc he worked out the 4-part calcs on, but he also notes in his latest that the 4-part system is 2 dimensional, and the 'sheer legs' he is using are in 3-D, so needs some tricky calcs to get the lengths of the arms correct.

This is slightly different to the Telstar system which used 'sheer legs' not attached to the mast. Danny's system is simpler in that the mast becomes part of the 'system'.


It is still in trial phase, but appears to be doing what he hoped it would.

https://www.facebook.com/trailertriagain/

[Chotu]

Originally Posted by Buzzman

Yes of course, the locks would be the limiting factor. For a shallow draft cat. I know depth is an issue for large monos also.


But 42' ought to be wide enough. How wide is Chotu's catamaran?

It’s nowhere near 42ft. Ha ha. That would be quite a boat. I’m 25ft wide.

I’ve researched a lot of the inland limitations and in good even for a lot of the European rivers. I can’t get into the European canals system however.

[Chotu]

Originally Posted by Buzzman

Chotu
Here is Dannys FB page. As you can see he is using a 'modified four-part mechanism' which is based on the Farrier tri folding arms (or vice versa, if you see what I mean).

Danny can probably give you the Excel doc he worked out the 4-part calcs on, but he also notes in his latest that the 4-part system is 2 dimensional, and the 'sheer legs' he is using are in 3-D, so needs some tricky calcs to get the lengths of the arms correct.

This is slightly different to the Telstar system which used 'sheer legs' not attached to the mast. Danny's system is simpler in that the mast becomes part of the 'system'.


It is still in trial phase, but appears to be doing what he hoped it would.

https://www.facebook.com/trailertriagain/

Thank you for this!

I’ll have a look. Your idea with this system and Telstar really makes the most sense. Right now, I’ll proceed with the simple “dumb” mast step and a crane to rig. Then, I can work out the details of the system some time later.

[rslifkin]

Originally Posted by Chotu

It’s nowhere near 42ft. Ha ha. That would be quite a boat. I’m 25ft wide.

I’ve researched a lot of the inland limitations and in good even for a lot of the European rivers. I can’t get into the European canals system however.

Can't do some of the Canadian canals either at 25 feet. The Trent Severn and Chambly are off limits (both are 23 feet max beam), but you can do the Rideau (26 foot max beam).