Bending the Longerons – 2 Finishing the J-Channel I cut the F-786A, B, & C J-channel to length and prepared the ends as shown on DWG 18. Time: 1 hour Share this: Share on X (Opens in new window) X More Share on Facebook (Opens in new window) Facebook Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email Like Loading...