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Great news- JU AIR Junkers 52s WILL fly again !

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  • Propstrike
    Rank 5 Registered User
    • Mar 2004
    • 4010

    Great news- JU AIR Junkers 52s WILL fly again !

    Press release reads as follows

    After several months of planning #JUAIR has begun to overhaul its three #Junkers#JU52 s from the ground up.
    The work will be carried out by certified specialist companies and is expected to take around two years. To resume flight operations in spring 2021, the maintenance of the aircraft will also be reorganised.

    First of all, the aircraft and their individual parts will be digitally measured in order to produce three-dimensional, computerized construction plans. The major project will be carried out by #JUNKERSFlugzeugwerke, which has contracted numerous specialist companies from Switzerland and abroad to carry out this work. The Swiss Federal Office of Civil Aviation (#BAZL) accompanies all work steps before, during and after implementation. At the end of the extensive work, the three aircraft will be technically practically new.

    All safety-relevant load-bearing parts of the wing construction will be replaced preventitively due to their age. Since new parts for the eighty-year-old aircraft are no longer available, hundreds of individual parts have to be newly manufactured by authorised partners. First the original parts are digitally measured. Then components such as wings, tail units and controls are modelled in the computer. These data are then used to rebuild the individual parts. Around 90 percent of the wing parts are replaced in this way.

    The overhaul of the wings will take place in Malters (LU). The fuselage, tail unit, landing gear, control system and all other systems will be overhauled in #Duebendorf / #Switzerland. Here, too, the work will be carried out by specialists from certified specialist companies.

    The project will be closely monitored by the Federal Office of Civil Aviation. The individual work steps are described in detail in advance and checked by the Federal Office. After approval, they are carried out and can be checked again by the Federal Office.

    The engines of the three aircraft will be replaced. No spare parts are available for the original #BMW132 radial engines previously used, as #BMW discontinued production of this engine type in 1944. The cost of continuing to operate these aircraft engines for a longer period of time would increase year by year.

    JU-AIR has therefore decided to replace them with Pratt & Whitney's "#Wasp" R-1340 radial engines. The "Wasp" engines are no longer being rebuilt, but they have been produced in such large numbers that they are still very widespread worldwide. Overhauled engines and spare parts in mint condition are readily available. Engines from #PrattandWhitney were to be found regularly on the JU-52; the airplanes were partly delivered with the star engines of the American manufacturer.

    The aircraft with the registration HB-HOS is the first of three aircraft which will be overhauled. It was delivered to the #SwissAirForce in late summer 1939 and remained in the service of the army until 1981. It was taken over by JU-AIR in 1983 and has been part of its active fleet ever since. The overhaul of the other two JU-52s of JU-AIR will start later. The exact timetable also depends on how the work on the first aircraft progresses. It is planned that HB-HOS will return to flight operations in spring 2021.
  • Oxcart
    Rank 5 Registered User
    • Nov 2007
    • 2100

    #2
    That's great news! Thanks for sharing!
    Give a man a fish and eat for a day. Give a man a fishing rod and he'll eat for a lifetime. Give a man religion and he'll die praying for a fish!

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    • Propstrike
      Rank 5 Registered User
      • Mar 2004
      • 4010

      #3
      With those three Wasp engines, they will sound like a flight of Harvards !

      Comment

      • JohnTerrell
        Rank 5 Registered User
        • Apr 2010
        • 419

        #4
        Not quite - this one in the US already has geared R-1340's installed:

        https://www.youtube.com/watch?v=1BIQpT-0AME
        https://www.youtube.com/watch?v=aTjoiuq9doI

        The Lufthansa example also has geared R-1340's.

        Comment

        • Squawkinhawk
          Rank 5 Registered User
          • Feb 2004
          • 24

          #5
          This is excellent news.

          A quick point on the engine change. It saddens me a little that all three will endergo a changeover to Wasps. I fully get the lack of spares situation, but I cant help thinking they could change two leaving the third with BMWs. The third would then have six spare fully working engines. It would be the last JU52 in the world flying with its originally intended powerplants.

          That said, they are a commercial venture after all. Fair play to everything they are doing to keep these wonderful aircraft in the skies for future generations to enjoy. I cant wait to see them in the air again regardless of engine.
          Last edited by Squawkinhawk; 13th June 2019, 07:57.
          SH

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          • JohnTerrell
            Rank 5 Registered User
            • Apr 2010
            • 419

            #6
            HB-HOY in Switzerland still operates with BMW engines, as I believe F-AZJU in France does as well.

            ZS-AFA in South Africa I believe has R-1820's.

            Comment

            • Robert Whitton
              Rank 5 Registered User
              • Jan 2005
              • 1342

              #7
              Click image for larger version

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              Last edited by Robert Whitton; 13th June 2019, 15:58.
              Robert Whitton,
              Edinburgh, Scotland

              Comment

              • Archer
                Innocent bystander
                • Nov 2003
                • 1722

                #8

                Hermeskeil_Ju52_Oct2013 by Jelle Hieminga, on Flickr

                JuAir_HBHOS_Aug2014 by Jelle Hieminga, on Flickr
                Two can play that game
                A Little VC10derness - A Tribute to the Vickers VC10 - www.VC10.net

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