Colvic Seaworker at 20 knots

A Colvic Seaworker hull built as an oyster smack workboat in Brightlingsea by John Brett - VW marine 150-5 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!