From our Hobie forums on this subject...
Hobie 16 Mast Assembly Specifications:
Lower Aluminum Extrusion: 219 3/4" (Extrusion only)
Comptip: 92 7/8" (from Lower Aluminum Extrusion point to top of CompTip not including roller assembly).
Combined: 312 5/8" (Not including mast base or CompTip halyard pully assembly)