Taking sweep out of White Pine

[OntarioAl]

Folks
I have a air dried (stored in shed for 19 years  gad has it been that long!) white pine board 10ft by 2  1/2 by 12in. Now 3 pieces a little less that 4in. (clear)
It has a uniform sweep in it the center being about 1/4 inch lower than ends.
I have a 6 in jointer .
My question is do I take a little off each end working it down until it lies flat.
Right now it wants to follow the sweep and the project I have in mind does not include curved sawing.
Thanks in advance
Al 

[DR Buck]

Can you attach a board as a straight edge on one side and run it through a table saw to get the first side straight?   Then remove the straight edge and do the 2nd side.

[terrifictimbersllc]

I have a long piece of pine that I use to turn my planer into a jointer.  To do your piece I'd place it on the board with the hump side up and put shims underneath the gap(s) so that planer pressure doesn't press them out.  Glue them on to the work piece if necessary.  Might want to also screw some blocks to the helper board up tight against the workpiece to help keep it from moving.  Then send both through the planer together with light passes until  the hump side is flat. Then flip it over to thickness it. Monitor the flatness of your piece by sighting down the edge as you go along.

[Peter Drouin]

Put it in the wood stove and get some straight lumber.  ;)
:christmas:

[OntarioAl]

DR_Buck  worked like a charm
Peter It was old growth clear pine  but the edgings and planer shavings did go in the stove.
thanks
Al

[Just Me]

Turn it over and check in in about eight years.

Seriously! You are going to lose a little more than 1/4", but the thing is that you will be introducing stress into the wood that will want to come out at some time. I would try stacking it with the curve up and weight it if need be for some period of time to see if you can straighten it out naturally. Sounds like nice door stock. Cool.