benjamin mellor ripped open one of the 41 bales of cocaine .
the 35-year-old window cleaner , from bradford , was one of three men who were arrested after naval officers stormed the yacht 200 miles off the south-west coast of ireland in september .
the scheme began in 2013 when powell took charge of the 62ft makayabella in the caribbean .
he sailed it for a year as a charter boat to provide a cover story before picking up the 1,025 kg consignment of cocaine in venezuela last august .