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      plasticplanes


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      Post #72444, posted on 05-16-2019 GMT-5 hours    
      Quick question about these two kits….

      From my googling I find that the 5/600 share more or less the same fuselage length but have quite different wings. I wonder what Welsh did about it? I have the 600 but not the 500. Did they produce different kits or is it a quick and essy reboxing of the same resin and plastic for both versions?

      P.

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      RAA188


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      Post #72447, posted on 05-16-2019 GMT-5 hours    
      I'm not sure what changes may have been made to the (kit) fuselage, but the resin parts are from the NG kits--new nacelles/pylons, empennage, etc. So far as I can tell they're identical to what's in the -700 & -800, both of which I also have...

      HTH

      Rob in AK

      Just get me back to Alaska. I'll find home from there.

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      FLYHY


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      Post #72448, posted on 05-16-2019 GMT-5 hours    
      The 737-300, 400, and 500 are one group while the 737-600, 700, and 800 are another. While fuselage lengths are similar, the primary difference is the tail - the later generations have a smaller vertical fairing and a taller tail. The wing is the was lengthened for the the later models as well, with some other changes I'm not too certain about.

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      LH707


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      Post #72449, posted on 05-16-2019 GMT-5 hours    
      The 300/700 and 500/600 each differ by 9", and I'm pretty sure that's only because of the larger tail feathers, the fuselages are the same size. If you have a 500/600 fuselage, basically everything else will be different (wings, engines, stabs, etc.).

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      RAA188


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      Post #72450, posted on 05-16-2019 GMT-5 hours    
      The big changes are relocation fore/aft where the wings are concerned; CG changes based on design dictated that IRL.

      Regardless, in 1:72 there may be slight alignment changes, but the #1 differences will be the empennage (broader root chord), wing planform, & engine nacelle-pylon shapes. Whether you prefer the Welsh kits over the forthcoming BPK releases doesn't matter, ultimately the difference is in the changes to the airframe--which Densil captured. So a -600 kit will have the correct parts, as will a -500.

      Feel free to build away, it's all good

      Rob in AK

      Just get me back to Alaska. I'll find home from there.

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      Post #72455, posted on 05-17-2019 GMT-5 hours    
      They moved the wing fore or aft? By how much?

      Regarding the horizontal stabs, those have the same root chord and lengthened tips, IIRC, kinda like the 747SP

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      Post #72456, posted on 05-17-2019 GMT-5 hours    
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      LH707 :
      They moved the wing fore or aft? By how much?

      Regarding the horizontal stabs, those have the same root chord and lengthened tips, IIRC, kinda like the 747SP


      IIRC the wing on the -500 vs. the -200 was moved forward by 1-2 frames to balance out the weight of the CFMs, among other things. Sorta like the crazy long MD-80 fuselage ahead of the wing with the heavier JT8s.

      I don't know if there were similar changes to the -600, but on the -700 & -800, between the minimal differing fuselage length & other weight & balance changes the wing is in a "new spot" compared to the -300 & -400...

      As to the empennage, I know they added tip extensions on the Classics (vertical fillet notwithstanding...) but I could've sworn the NG got both root & tip mods.

      Guess it's time to break out Dan's book again

      Rob in AK

      Just get me back to Alaska. I'll find home from there.