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      tangram


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      Post #71884, posted on 03-06-2019 GMT-5 hours    
      I am planning an early DC-8-50 using the Revell short body kit which has the original wing without the leading edge extension.

      I have read various articles & books which quote that the 4% leading edge extension was introduced from l/n 148 & that it was also available as a retro-fit for earlier machines.

      The only machine quoted as NOT receiving the extension after upgrade to a -51 was l/n 1.

      JAL, KLM, Iberia, Delta & United all operated sub l/n 148 -50's (some re-engined), but did any have the leading edge extension retro-fit?

      Can anyone help with any info?

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      TWA Brat


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      Post #71889, posted on 03-06-2019 GMT-5 hours    
      The FAA Type Cert Data Sheet for the DC-8 shows the following somewhat ambiguous info:

      The 4 percent extended leading edge may be installed on the following aircraft:
      DC-8-32 (S/N 45384-45390, 45416, 45526, 45567-45569)
      DC-8-33 (S/N 45570, 45627)
      DC-8-42 (S/N 45598-45601)
      DC-8-43 (S/N 45620-45622, 45624, 45625)
      DC-8-52 (S/N 45301-45303)
      DC-8-53 (S/N 45383, 45613, 45614, 45616)

      S/N 45420 originally delivered as DC-8-32 with standard wing and inoperative forward auxiliary fuel tank, was subsequently modified and redelivered by Douglas Aircraft Company as DC-8-53 with extended L.E. and operative forward auxiliary fuel tank.

      The following Model DC-8-32 airplanes were modified to Model DC-8-53. Modification includes extended L.E., L.E. fuel tanks and increased capacity of No. 1 and No. 4 alternate tanks.
      45417
      45568, 45604

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      tangram


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      Post #71896, posted on 03-07-2019 GMT-5 hours    
      I have to thank you for such a brilliant reply - perfect detail.

      Basically the longer range -52 & -53's were given the leading edge upgrade & the shorter range -51's were not.

      This does narrow down my options to either a Delta or United machine or of course any number of operators of ship number one.

      Thanks again & much appreciated.

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      Jennings


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      Post #71898, posted on 03-07-2019 GMT-5 hours    
      I have to be honest - I've looked and looked and looked at this, and unless you had photos taken from exactly the same point in space of two airplanes, one with and one without the 4% l/e extension, in exactly identical lighting conditions, I don't think you can really see it.

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      tangram


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      Post #71904, posted on 03-08-2019 GMT-5 hours    
      You are probably right, but when I compared the old Revell DC-8 wing with the much newer Minicraft kit wing the difference is very clear.

      It is not all about the accuracy, I actually find it fascinating to research these idiosyncrasies - all part of the hobby I guess.

      Shame we have no DC-8 here in the UK to crawl over.

      I did capture a number of pics at Manston a few years ago of the old MK -55F before she was cut up - non really capture the leading edge. Shame this machine has disappeared as she had a significant earlier life with SAS & KLM.

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      Caravellarella


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      Post #71905, posted on 03-08-2019 GMT-5 hours    
      Quote
      tangram :
      I am planning an early DC-8-50 using the Revell short body kit which has the original wing without the leading edge extension.

      I have read various articles & books which quote that the 4% leading edge extension was introduced from l/n 148 & that it was also available as a retro-fit for earlier machines.

      The only machine quoted as NOT receiving the extension after upgrade to a -51 was l/n 1.

      JAL, KLM, Iberia, Delta & United all operated sub l/n 148 -50's (some re-engined), but did any have the leading edge extension retro-fit?

      Can anyone help with any info?



      Dear Tangram, get this book (if you don't have it already.....



      It gives a list of which DC-8s were built with the 4% leading edge extension & which DC-8s could be retrofitted with the 4% leading edge extension.

      Terry (Caravellarella)

      Because LíOR…AL keeps telling me Iím worth it..........

      Or maybe itís MAYBELLINE...............

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      tangram


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      Post #71907, posted on 03-08-2019 GMT-5 hours    
      Well this is one book I have not yet read - brilliant so much more info to be discovered out there.

      Have located & ordered via eBay.

      Thank you for this - I look forward to becoming my own expert!

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      LH707


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      Post #71926, posted on 03-09-2019 GMT-5 hours    
      There's a DC-8-33 in Le Bourget, not too far away from you depending on your perspective. My closest DC-8 is about ~1000 miles away in LA....