Run back

[Dr Doof]

Took this yesterday on the way back from the Farnes.

The A frame looks like its going to fall off! I'm sure it didn't move as much as that before I added the dome.

http://www.youtube.com/watch?v=

[YOUTUBE]VCzhxUDjwSs[/YOUTUBE]

[Dr Doof]

Think this was taken on the way up to Farnes not the way back.

[chewy]

It is wobbly alot that!

[Dr Doof]

I know, hadn't noticed it moving like that before. Could be too much weight at the top?

[chewy]

Weight up top won't help the tube itself doesn't look that big?

[martini]

Originally Posted by chewy

It is wobbly alot that!

That is quite scary, can't see the s/s putting up with that for long before it work hardens and breaks

I know of another rib with a similar design, frame curves round the tube and then up, he has problems with welds breaking etc. What diameter is that tube? No doubt the wall thickness is measured in thou

[kerny]

Perhaps some extra brackets fitting the A frame to to the transome might help.

[chewy]

Haven't a few Humbers suffered this problem?

[Dr Doof]

The tube is around 2". I'm going to have to do something with it.

Yesterday's trip out was just over 70nm. I'm a bit nervous of doing that kind of distance with the A frame moving around so much.

[martini]

2" is good if the wall thickness is reasonable, I think it's more the design. A more direct transfer of the load from the weight bolted to the top(radar etc) down to the deck/transom fixing points is preferred.