Butler, Don (Auth.)'s A Guide to Ship Repair Estimates in Man Hours PDF
By Butler, Don (Auth.)
Expert send surveyor Don Butler stocks a lifetime's send fix costing adventure during this distinct source for exact price estimation and planning
- Includes difficult to come back through info on regular send fix hard work expectancies for actual man-hour forecasting and price estimation
- Produced for marine engineers and marine execs to assist with fix specification and negotiation, supporting you to devise paintings and budgets extra reliably
- Uses man-hours rather than specific premiums or currencies, offering a long term version for pricing despite place, cost fluctuation or inflation
Bringing jointly in a different way scattered information on particular fix and dry-docking actions, this priceless consultant will prevent time and increase 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 difficult to return by way of info on regular send fix hard work expectancies for exact man-hour forecasting and price estimation
- Produced for marine engineers and marine pros to save lots of time, reduction in fix negotiation and aid businesses to devise extra reliably
- Man-hour listings help in long term pricing, that means the publication content material continues to be legitimate despite forex, expense fluctuation or inflation
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Additional resources for A Guide to Ship Repair Estimates in Man Hours
11 Sea chests and strainers Opening up of sea chests by removing ship side strainers, cleaning, and painting with owner’s paints, as per hull treatment specification. Assuming single grid per chest. 3–1 Above 1 Additional charge per extra grid Man-hours 12 20 30 5 Docking plugs Allowance made of 1 man-hour for removing and later refitting of each tank drain plug using ship’s spanner, assuming no locking devices fitted and excluding all removals for access and repairs to threads. 12 Sea valves Opening up hand-operated, globe and gate valve for in-situ overhaul, by disconnecting and removing cover, spindle and gland, cleaning all exposed parts, hand grinding of globe valve, light hand-scraping of gate valve, testing bedding, painting internal exposed areas, and reassembling with new cover joint and repacking gland with conventional soft packing.
84, but it is common practice for estimators to use 8. To calculate the weight of the plate in kilograms: Multiply L × W × Th × SG For example: Plate no. 1 Repair of damage to shell plating Steel angle For flat steel angles, measure the length in meters, the widths of each leg in meters, and common thickness in millimeters. Take the specific gravity (SG) of the material. 84, but it is common practice for estimators to use 8. To calculate the weight of the steel angle in kilograms: Multiply L × (W1 + W2 ) × Th × SG For example: Angle no.
10 Anodes (on hull and in sea chests) Cutting off existing corroded anode, renewing owner’s supplied zinc, or aluminum, anode by welding integral steel strip to ship’s hull. Excluding all access works. 5 2 To determine the amount of anodes required for a vessel, the owner should contact a supplier who will calculate the exact requirement. 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.
A Guide to Ship Repair Estimates in Man Hours by Butler, Don (Auth.)