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  1. pawelmaz

    Glue between Natural rubber and Hypalon

    Dear All, We are boat builders who producing RIBs. We use excellent glue to stick Hypalon (tube) into laminate (hull) but still have problem to stick Hypalon (tube) and Natural rubber (fender beam). Could anyone help me and prompt some kind of glue? Best regards Pawelmaz
  2. pawelmaz

    SHAFT ALIGNMENT TOLERANCES

    Aligment of shaft and bearings and gearbox and prop should not more difference than 0,5 mm. You should use accurate inside micrometer to check axial or lateral angle or refraction
  3. pawelmaz

    Exhaust Angle and Noise Reflection

    You can see web side of Vetus company. They offer also complete exhaust system form motorboats. On electronic catalog you can see a sollution of proper line or even order parts what you need for. www.vetus.nl Regards Pawel Ps. Their component is permitted by most marine registers
  4. pawelmaz

    Anyone here use synthetic oil in ship engines?

    Hello frankiee In marine big engine is better to use mineral in the brand new engine. The new engine piston and cylinder, valves dimension is a little bit oversize and special shaped. Mineral oils help matching these parts and allow to wear it. After this process combustion chamber is tigth...
  5. pawelmaz

    Diesel Power

    Hi Raffshore, I think that the best sollution is use Cummins MerCruiser Diesel with Bravo III. Of course very important is prop selection but any good local distributor should help you. Poland is the biggest boat bulders in Europe and I notice that most of builders use MerCruiser drives. You...
  6. pawelmaz

    Pipe losses

    Thank you very much indeed for quark and fvincent
  7. pawelmaz

    Pipe losses

    I am looking for good free download program for calculating pipe losses and also some information where I can find physical parameters of fluid (viscosity). Thank you very much in advance.
  8. pawelmaz

    How calculate cost of warranty

    Dear "TD2K", "Metengr" have right, this is cost of warranty which must be added to the price of completly new product. In my country this product will appear for the first time. What I know ussualy for mechanical devices is from 1,5% up to 5% (or more) of a new product cost. But how to...
  9. pawelmaz

    Cost of warranty for new product

    Thank you very much for PSE!!! This product is gas boilers up to 50 kW. The warranty is for a few year (let say 5). I tried find something in economic literature for engineers but I could find anything. Best regards
  10. pawelmaz

    Cost of warranty for new product

    Dear all, I need estimate cost of warranty for new product (mechanical device). Is there any economical formula to do that? Of course from technical point of view we must know everything about product but how it is loking from economic point of view? Best regards for everyone
  11. pawelmaz

    How calculate cost of warranty

    Dear all, I have calculate cost of warranty of product. Product is a new mechanical device. I now that we have to know what could be damage within this time but maybe is a special economical formula to do this? Do someone could help me? Best regards
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