Could you fix a jammed sheave without a rigger?

Could you fix a jammed sheave without a rigger?

- James Stevens

Q Pete and three crew are on board Lapita, a fractional rigged Sigma 41 on a world cruise. They are currently in the Cape Verde Islands off Western Africa, with the next stop planned to be Antigua.

They have a problem at the top of the mast. A week ago the main halyard sheave jammed, making it impossible to hoist the main. Pete used the topping lift as a main halyard but now If your main halyard that sheave has jammed, would jammed also. you be confident to sail a long Pete has spare passage with sheaves but there just a headsail? is no rigger on the islands and in order to get to the top of the mast he would need to send someone up on a bosun’s chair, which would, of course, require the main halyard or topping lift.