when i cut my big board into the 1 possibly bow worthy board i noticed a crack. i hoped it wouldnt go in very far but it does.  The widest i can make this bow is 1" wide.  Can i make a safe 55# bow from this?  it will be backed with hickory with 3 1/2" of reflex glued in.
after i take it off the form it will probably go tp 2 1/2" of reflex.

i hate to waste this board can i do anything with it?  i have one other 60" board that is normal width.  CAn i make a stiff handled 60" bow that has a 26" draw?

What kind of wood is your board?  That will make a difference.

Osage!

You could make a 70# bow out of a 1" bamboo backed osage stave.