DSK wrote:



No, engineering texts say that "I" or "T" sections have the greatest
rigidity *in a defined plane*.

Yes that's what I said ealier! What is it with your inability to read?
Anyway, now you know a triangle section isn't _always_ the strongest for
a given amount of material. You must be so happy to have learnt
something new! Hooray!


... But Doug is always right


Nope, I've been wrong several times. But this isn't one of them.

... so we must all be wrong!


Who's "we" kimosabe?

BTW do you know what a cosine is? If you have the slightest clue about
any sort of engineering ... or even high school geometry... then my
diagram should be relatively easy to understand for you...

The compression force on the boom is the cosine of what angle?

No, no, you silly man you need to re-read your posts. It was _you_ who
keeps saying it's a cosine -not me! Are you now realizing that you were
wrong and it's not a cosine after all? You do know what a cosine is
don't you?

Cheers

No, engineering texts say that "I" or "T" sections have the greatest
rigidity *in a defined plane*.


Nav wrote:
Yes that's what I said ealier!

It's not what you said just then.... you seem to be able to lose track
of this sort of detail.

Is there a difference between "rigidity" and "rigidity in a defined plane"?


.... What is it with your inability to read?

What is it with your inability to understand a simple concept?

Anyway, now you know a triangle section isn't _always_ the strongest for
a given amount of material.

Yes it is, unless you limit the forces applied to a single plane.

... You must be so happy to have learnt
something new! Hooray!

Careful with the fireworks, Navvie.


The compression force on the boom is the cosine of what angle?


No, no, you silly man you need to re-read your posts. It was _you_ who
keeps saying it's a cosine -not me!

Are you saying it's definitely not? Are you sure?

Fresh Breezes- Doug King