It always bent when under load but it straigtened out when the load
was released. Sort of like the pre-bend in a mainmast that straightens
back out when the backstay is eased up.

If I were to take a picture of the boom now with the mainsail off, it
would look almost straight but it would have just a little angled
kink at the join. This little angle does no harm whatsoever.

Take most any production boom made for end-boom sheeting
and fit it with mid-boom sheeting without reinforcing it and it
will also show some bend under load.

S.Simon

"Scott Vernon" wrote in message ...
Seriously Neal. Was the boom bent, as it appears to be in your pic, when
you added your pipe? Couldn't you have straightened it out? Or did it bend
afterwards.

Scotty, always looking for a cheap fix

"Simple Simon" wrote in message
...
Give it up Sidney - I respect you for your vast engineering knowledge
but these weenies are so uneducated and simple-minded that they
can't honestly be expected to under stand systems involving physical
forces they cannot see, let alone comprehend.

S.Simon - intellectuals approve


"Sidney Greenstreet" wrote in message
nk.net...
Baaa!

You sailors with your cheap extruded aluminum spars, squeezed from a
cheap
aluminum extrusion die!!!

Cheap, cheap, cheap! And not efficient at all!

The finest spars, aside from composites, is Simple Simon's double butted
pre
stressed boom! Yes, that's right! The finest steel bike frames are
made
from double or even triple butted tubing. The knowing Captain has
himself,
with his very own hands, constructed a double butted boom. It's tubing
wall
is thicker in the middle rather than on the ends! It's pre stressed to
overcome tensile loading! Only a genius could design such technology.

It's a shame that the good Captain is too modest to tell you these
things
himself. It's a worse shame that you all are too ignorant to know it in
the
first place. But the worse shame is the lack of respect you all have for
the
good, noble Captain! Can't you all appreciate the great things in
life?!?!