The Daily Engineroom Logbook Type 30B is nearly identical to Type 90A, except that it contains carbon copies (yellow duplicate pages) for job fulfillment or invoice purposes. This logbook has a 31 day coverage. This is a two-part engineroom logbook specifically designed for workboats with three propulsion engines where a continuous record of engine operating hours, routine maintenance performed repair work undertaken, and checklist type reports on installed equipment are desirable. The black carbon interleaf forms provide for superior reproduction on office copiers. Features: carbon copies 31 day coverage 14 x 8.5 in. for workboats with three propulsion engines Features: carbon copies 31 day coverage 14″ x 8.5″ for workboats with three propulsion engines
