A Colvic Seaworker hull built as an oyster smack workboat in Brightlingsea by John Brett VW marine 1505 engine here stepping up from 1,500, to 2,000, to 2,500, to 3,000 and finally to 3,500 revs at which point she is doing 20 knots. Lovely boat perfect for pottering round at launch speeds too of course get your order in quick!