By Butler, Don (Auth.)
Expert send surveyor Don Butler stocks a lifetime's send fix costing event during this distinctive source for exact fee estimation and planning
- Includes difficult to return by means of info on regular send fix hard work expectancies for exact man-hour forecasting and value estimation
- Produced for marine engineers and marine pros to assist with fix specification and negotiation, supporting you to devise paintings and budgets extra reliably
- Uses man-hours in preference to specific premiums or currencies, offering a long term version for pricing despite situation, fee fluctuation or inflation
Bringing jointly differently scattered information on particular fix and dry-docking actions, this priceless advisor will prevent time and enhance the accuracy of your send fix estimates. do not plan or fee paintings with out it!
Don Butler is a fellow of the Institute of Marine Engineers and a member of Society of Consulting Marine Engineers and send Surveyors, UK.
- Made up of very challenging to come back through details on normal send fix hard work expectancies for actual man-hour forecasting and value estimation
- Produced for marine engineers and marine execs to avoid wasting time, reduction in fix negotiation and support businesses to devise extra reliably
- Man-hour listings help in long term pricing, that means the booklet content material is still legitimate despite foreign money, price fluctuation or inflation
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Extra info for A Guide to Ship Repair Estimates in Man Hours
Small vessels Cable dia. 16 Chain lockers (per side) Opening up, removing dry dirt and debris, handscaling, cleaning, and painting one coat bitumastic. Closing up on completion. Removing internal floor plates, or grating, cleaning, painting, and refitting. Small vessels Cable dia. (mm) Man-hours (per side) <25 25–50 75 90 Large cargo vessels and oil tankers DWT Man-hours (per side) <20,000 20,000–50,000 50,000–100,000 100,000–200,000 200,000–300,000 Over 300,000 100 130 140 200 250 270 Note: Removal of sludge will be charged extra per m3.
3 Bearing survey – 1 Opening up for inspection, exposing both halves, cleaning, calibrating, and presenting for survey. On completion, reassembling as before. Man-hours/bearing Cylinder bore (mm) Cross-head Crank pin Main 500 550 600 650 700 750 800 850 900 950 1000 1050 47 50 52 55 57 58 60 62 65 68 72 75 32 35 37 40 42 45 47 50 52 55 57 60 45 48 50 52 55 56 59 63 67 72 76 80 Note: For exposing top half of bearing shell only, charge 60% of above rates. 4 Crankshaft deflections – 1 (a) O pening up crankcase door for access works and refitting on completion.
Work could include changing seat inserts, machining, and grinding/lapping seats. This will require establishing and should be subject to work assessment. (b) Top overhaul. Disconnect and remove one pair of crankcase doors, disconnect bottom end bearing fastenings. Disconnect and remove cylinder head, withdraw piston, remove piston rings, clean, calibrate, and reassemble as before using all owner’s supplied spares. (c) Piston gudgeon pin. Drawing out gudgeon pin from removed piston, cleaning all exposed parts, calibrating and recording, and reinstalling pin as before.