By Don Butler DTI Combined first class Engineers Certificate of competency for steam ships and motor ships.Chartered Engineer (C. Eng)Fellow of the Institute of Marine Engineers (F.I.Mar.E)Member of Society of Consulting Marine Engineers (M.C.M.S)
Expert send surveyor Don Butler stocks a lifetime's send fix costing adventure during this distinct source for actual fee estimation and planning
- Includes not easy to return by means of details on normal send fix exertions expectancies for exact man-hour forecasting and value estimation
- Produced for marine engineers and marine execs to help with fix specification and negotiation, assisting you to devise paintings and budgets extra reliably
- Uses man-hours rather than specific charges or currencies, delivering a long term version for pricing despite situation, fee fluctuation or inflation
Bringing jointly in a different way scattered info on particular fix and dry-docking actions, this worthwhile advisor will prevent time and enhance the accuracy of your send fix estimates. do not plan or fee paintings with no 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 demanding to come back by way of details on regular send fix hard work expectancies for exact man-hour forecasting and value estimation
- Produced for marine engineers and marine execs to avoid wasting time, relief in fix negotiation and support businesses to plot extra reliably
- Man-hour listings help in long term pricing, that means the ebook content material is still legitimate despite foreign money, expense fluctuation or inflation
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Additional info for A Guide to Ship Repair Estimates in Man-hours, Second Edition
00004-4 Copyright © 2012 Don Butler. Published by Elsevier Ltd. All rights reserved. 1 Pipe work renewals in schedule 40 and schedule 80 seamless steel—cont’d Man-hours per meter Pipe dia. 5 8 10 13 16 21 26 31 37 42 47 53 58 64 Notes: A minimum charge to be applied for length of pipe of 3 meters. Per bend add 30% of the value of the straight pipe. Per branch add 80% of the value of the straight pipe. Removal and refitment only of the pipe: charge is 40% of the value of the pipe. 48 Guide to Ship Repair Estimates For pipes in other locations, the following additional charges are to be made: Inside double bottom tanks and duct keels Inside cargo or ballast tanks Inside pump rooms In engine rooms below floor plate level 30% 30% 30% 20% Galvanizing Hot dip galvanizing after manufacture.
The following section shows the method of determining weights of zinc and aluminum anodes, so the reader may understand the method. ) Drydocking works 25 Formula to determine the weight of sacrificial zinc anodes required on a ship’s underwater area Underwater area of ship in square meters Number of years between anode change Capacity of material in amp hours/kg Current density of material in mA/m2 (ave. g. 3) K = Number of hours in 1 year = 8760 Capacity of material (amp hours / kg) = Information from manufacturer (for zinc, 781 is common) Using the above formula, it is a simple matter to formulate a spreadsheet to determine the weight of zinc anodes.
Calibration of every 20th link and recording. Marking shots with white paint. Painting cables with owner’s supplied bitumastic paint. Opening ‘Kenter’ type shackle and later closing. Disconnect first length of cable and transferring to end. Changing cable end for end. 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.