Setting an MPS

1. The MPS, or blister, is a free-flying sail, normally used without a pole.

The sail is controlled using a spi halyard, a sheet and a downhaul guy.

2. The downhaul guy can be led to the cockpit via a block which should be attached fore of the forestay.

3. Shorthanded crews should adopt a rule of lowering the MPS when the apparent wind reaches 15 knots.

The MPS tack downhaul guy, instead of being led back to a cockpit winch, can be led through a block and tackle system using a cam cleat stopper on the lower block, or tied down to a cleat on the foreship deck.
The downhaul guy is attached to the tack of the MPS using a bowline.
The downhaul guy
is led to a winch in
the cockpit via
turning blocks
(the block fore of the forestay being a swivel block).

The MPS sheet is attached to the clew using a bowline.

The hauling point for the MPS sheet should be between the hauling point for the Genoa No.1 and the stern.
Using appropriate blocks, the sheet is then led to a winch.