Mast Jig - Main Lower 37-24

Mast jig for building wire masts with .037" main and .024" spars.
 
Close-up photos of a mast building jig, showing basic wire setup, adhesive application and an example finished mast. Note that there are positioning slots for the "lower yard" that allow attachment of a second yard of the same diameter further below it (an uncommon configuration but still occasionally employed).