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  1. DONKUMPUNEN

    INSULATION IN THE DEEP SOUTH

    When talking about CANADA and FLORIDA I would compare the heating bill in CANADA vs the cooling bill in FLORIDA. My a/c bill in the summer[everything is electric]is about 200 dollars a month here in mississippi.My house is about 1700 sq/ft.When i lived in northern wisconsin i didnt need air...
  2. DONKUMPUNEN

    INSULATION IN THE DEEP SOUTH

    I dont think that people in the deep south[mississippi gulf coast] understand that insulation and at least double pane windows are necessary because of the intense heat from may through the end of october. I used to live in Wisconsin and i had 12 inches of insulation in my attic,double pane...
  3. DONKUMPUNEN

    WEAPONS FOUNDATION MACHINING PROBLEMS

    I WORK IN NAVY QA IN SHIP BUILDING.THE SHIP YARD WHERE I WORK HAS A CONTINUOUS PROBLEM WITH MACHINING FOUNDATIONS FOR ANTENNAS ON THE 05 LEVEL.THEIR BORING BAR IS NOT BIG ENOUGH TO COVER THE WHOLE FOUNDATION IN ONE SWEEP SO THEY TAKE A HALF CUT AND RESET UP,LEVEL CHECKS,ETC.HOWEVER FREQUENTLY...
  4. DONKUMPUNEN

    SUCTION STRAINERS FOR PUMPS USING SEA WATER FROM A SEA CHEST

    WHAT IS THE RULE OF THUMB THESE DAYS FOR INSTALLING A SUCTION STRAINER ON SHIP BOARD PIPING SYSTEMS COMING FROM A SEA CHEST?SUCTION STRAINER ON SUCTION SIDE OF A CENTRIFICAL PUMP AS IN FIREMAIN,SEA WATER COOLING,ETC.? I SEE STRAINERS ON VANE PUMPS TO OILY WATER TRANSFER PIPING SYSTEMS. IF I...
  5. DONKUMPUNEN

    PAINT COATING SYSTEMS ON US NAVY DESTROYERS

    ANY NACE CERTIFIED INSPECTORS OUT THERE?WE HAVE A LEVEL 3 NACE INSPECTOR WHO IS AN ENGINEER-US NAVY CIVIL SERVICE. HOWEVER IT SEEMS LIKE MOST TIMES WHEN WE HAVE A PROBLEM WITH UNDER WATER HULL PAINT SYSTEMS HE SIDES WITH THE CONTRACTOR. HE ALSO SAID TO INSPECT UNDER NACE YOU HAVE TO BE A LEVEL...
  6. DONKUMPUNEN

    propellor shaft alignment on large ships

    ANY ONE OUT THERE KNOW OF SOME THING ON LINE ABOUT SHAFT ALIGNMENT ON LARGE SHIPS AND THE LINE SHAFT BEARINGS,THRUST BEARINGS,ETC.? DON KUMPUNEN
  7. DONKUMPUNEN

    70-30 COPPER NICKEL PIPING AND 90-10 CU-NI FITTINGS

    THIS IS SILVER BRAZED PIPING WE ARE TALKING ABOUT. DON KUMPUNEN
  8. DONKUMPUNEN

    70-30 COPPER NICKEL PIPING AND 90-10 CU-NI FITTINGS

    I work as QA SPECIALIST on US NAVY destroyers. The firemain and sea water piping was recently changed from 90-10 copper nickel to 70-30 copper nickel but some of the fiittings are still 90-10 cu-ni as per the drawings.The pipefitters in this shipyard have at different...
  9. DONKUMPUNEN

    DIESEL ENGINE EMERGENCY SHUT DOWN SYSTEMS TO INTAKE AIR

    I have worked around diesel engines up to 4000 HP for propulsion on craft and ships for US NAVY as a QA SPECIALIST during testing and sea trials. We always require the contractor to demonstrate the emergency pull device that trips a flapper to shut down the engine by...

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