Lock for Mainsail reefing HRC 9T (with bow shackle)

The HRC locking systems :

– prevent the boom sheaves and reefing lines, subject to high tensions.

– reduce the compression on the boom section due to the high tension of the reefing line

Locking :

– release the Mainsail halyard in position

– tighten the reefing line up to the locking position of the trigger 

– release the reefing line and hoist the Mainsail Halyard

Unlocking :

– tighten the trigger line

– hoist the Mainsail