Optiparts EX1203 Optimist mast lock. Stainless steel lock to secure your Optimist mast from coming out of its step when the boat is capsized. This mastlock has a rubber insert and should be clamped around the mast just under the deck. We suggest you use the collar in addition to the rope locking system to create double security. The lock will be provided with a line to attach it to the maststep.
This unique locking clamp can mean a savings of $200 to over $800 worth of repairs and replacements in event of a dismasting during capsize. This Safety Clamp is designed to be used in conjunction with the mast securely tie-in rope on the deck. It is a back-up system in case the tie-in system fails, comes undone or
is too loose.
Repeat steps 2 and 3 each time you step the mast.
- Tie the pennant to the threaded part of the mast step with a bowline or two half hitches leaving plenty of slack.
- Step mast and secure with traditional tie-in. Lift mast to be certain the tie-in is snug and won’t allow mast base to rise more than 1” out of the mast cup.
- Lock Safety Clamp just under thwart or thwart sleeve allowing
enough room for mast to swivel freely. Safety Clamp should be
positioned so mast cannot raise more than about 1”.