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Airfix 1:72 Harrier GR9

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  • Ed Sunder
    • Nov 2022
    • 154

    #1

    Airfix 1:72 Harrier GR9

    We join this construction in progress... (I just joined the forum )

    I have really enjoyed the newer Airfix kits and have previously built their newer Harrier GR1 and A-4B. So I'd picked this kit up a year or two ago (maybe more - COVID years don't count) and thought I'd give it a try. After completing the cockpit and a lot of the other major construction items, I started on the engine nozzles.

    Here's the initial construction along with a cockpit shots and some other details in progress (I know I have a lot of sanding/seam filling to do):
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    Overall model
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    Cockpit - which looks terrible in this picture...
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    Gear details (need to finish tires)

    And here is where I got to with the nozzles. With any Harrier, one of the major areas for seams is the nozzles and it's difficult in this scale to really get rid of them:
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    They aren't terrible, and I tried to hide the inner fin seams with dirt, but it didn't really work.

    So that got me to thinking about 3D printing some new nozzles. And while I was thinking about it, I thought I could 3D print some other stuff as well. I've been doing 3D printing for a while now, primarily using Fusion 360 for design and my AnyCubic Photon Mono X printer for resin printing. I've always had trouble making seams disappear on fuel tanks, so I started with that - also a pretty simple shape. Here's what I wound up with:
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    However, to get there I made a number of versions, adding features, measuring, etc. (I also printed one at 1:32 scale to try it out):




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    The way I do the design, some features scale up (such as the main body), but some features don't, so the fin is the same thickness at both scales (0.4mm) and the walls of the tank are 1mm for both as well. That means it's nice and light.

    After that I thought I'd add some more stuff under the wings, starting with the LAU-5003 rocket pods, which have more detail than you can see in this photo:
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    And I thought it would add some pizzazz to add some AGM-65s under the wings. I haven't decided which version I'll use, but I made models for both:
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    I also have LAU-117s for the Mavericks, but I don't have a good photo of those yet. These are all designed for me to run wire from the weapon/tank into small holes I can drill in the model so they can be attached later. Note that because these are resin, I have to use CA glue to attach them.

    Finally, I started working on the engine nozzles (why I started this in the first place):
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    I'm still working on sizing the aft nozzles to fit well, but they are very close.

    Anyway, I'm excited to see where this will go. If I do a nice enough job on the 3D printing stuff, I may offer some for sale eventually.

    Thanks for looking!
  • Mini Me
    SMF Supporters
    • Jun 2018
    • 10711

    #2
    All Greek to me, but the parts look Great! :thumb2: That Harrier office is looking the bomb.....watch your mold lines though.

    Comment

    • Ed Sunder
      • Nov 2022
      • 154

      #3
      Originally posted by Mini Me
      All Greek to me, but the parts look Great! :thumb2: That Harrier office is looking the bomb.....watch your mold lines though.
      Yeah, I was in a hurry and now I'm paying for it with the seams. I'll get them sorted... I've been more focused on the ordnance.

      Comment

      • Mini Me
        SMF Supporters
        • Jun 2018
        • 10711

        #4
        Should be OK if you're going to button up the cockpit, but working in 1/72 and smaller they really tend to stand out.....I'm strictly 1/87 scale and they really show up if I'm not careful. Keep it coming Ed, I'm liking the progress so far. :thumb2:

        Comment

        • Tworrs
          SMF Supporters
          • Jan 2022
          • 1980
          • Garry
          • New Zealand

          #5
          Great progress so far Ed, I'll follow along.
          Strength isn't about what you can do, rather it's about overcoming what you thought you couldn't do.

          Comment

          • Neil Merryweather
            SMF Supporters
            • Dec 2018
            • 5184
            • London

            #6
            Lovely stuff Ed, and shows exactly the benefits of the new technology.
            Did you print the tank and ordnance horizontal or vertical?

            Comment

            • Tim Marlow
              SMF Supporters
              • Apr 2018
              • 18892
              • Tim
              • Somerset UK

              #7
              Very nice Ed. 3D stuff is superb, really showing off the potential of the new medium. What a way to make an entrance :thumb2:

              Comment

              • adt70hk
                SMF Supporters
                • Sep 2019
                • 10402

                #8
                That's looking really very good Ed!

                Comment

                • Ed Sunder
                  • Nov 2022
                  • 154

                  #9
                  Originally posted by Neil Merryweather
                  Lovely stuff Ed, and shows exactly the benefits of the new technology.
                  Did you print the tank and ordnance horizontal or vertical?
                  Most of it is printed vertically, though the LAU-117s (not pictured yet) are done at an angle. I have to think about the supports and where I want the layer lines to be before printing. Because of the way the printer works I'm always tempted to keep things short because printing times are directly related to how tall things are. So, for example, the tanks take about 4 hours to print because of their height. If I laid them down it might be 1 hour. But, they wouldn't wind up looking as good. It's all tradeoffs...

                  Comment

                  • Neil Merryweather
                    SMF Supporters
                    • Dec 2018
                    • 5184
                    • London

                    #10
                    Originally posted by Ed Sunder
                    Most of it is printed vertically, though the LAU-117s (not pictured yet) are done at an angle. I have to think about the supports and where I want the layer lines to be before printing. Because of the way the printer works I'm always tempted to keep things short because printing times are directly related to how tall things are. So, for example, the tanks take about 4 hours to print because of their height. If I laid them down it might be 1 hour. But, they wouldn't wind up looking as good. It's all tradeoffs...
                    I know what you mean, which is why I asked.
                    In my professional life, speed is always key because of deadlines, but with my own stuff I have to remind myself that slow is not a problem!
                    You might be interested in my thread

                    All the best and keep posting
                    Neil

                    Comment

                    • Ed Sunder
                      • Nov 2022
                      • 154

                      #11
                      Originally posted by Neil Merryweather
                      I know what you mean, which is why I asked.
                      In my professional life, speed is always key because of deadlines, but with my own stuff I have to remind myself that slow is not a problem!
                      You might be interested in my thread

                      All the best and keep posting
                      Neil
                      Very cool! It's a lot of iteration and figuring out how to minimize weaknesses and maximize strengths. I need to do a post sometime soon on my 1:144 Aries 1B from 2001 that I designed, printed and built. I'm actually thinking about offering it as a kit.

                      Comment

                      • Ed Sunder
                        • Nov 2022
                        • 154

                        #12
                        Okay, I have a question that maybe someone here might be able to answer. I know the gr7/9 could use AGM-65s. Were they only able to use the IR missiles or could they use laser guided with the sniper pod? I really like the look of the laser guided Mavericks better, but I can do either.

                        Comment

                        • Jim R
                          SMF Supporters
                          • Apr 2018
                          • 15669
                          • Jim
                          • Shropshire

                          #13
                          Hi Ed
                          That 3D printing is impressive stuff. I don't understand it at all but it is making a big difference to aftermarket products. Harrier is looking good. You're right in saying that these newer Airfix kits are nice to build.

                          Comment

                          • colin m
                            Moderator
                            • Dec 2008
                            • 8740
                            • Colin
                            • Stafford, UK

                            #14
                            Hello Ed, and what an aircraft to introduce yourself with, the Harrier. A great choice. I'll be looking forward seeing this one develop.

                            Comment

                            • Ed Sunder
                              • Nov 2022
                              • 154

                              #15
                              Originally posted by colin m
                              Hello Ed, and what an aircraft to introduce yourself with, the Harrier. A great choice. I'll be looking forward seeing this one develop.
                              I love Harriers and I really love the newer Airfix kits of them. Here's a 1:72 Airfix GR1 I did a couple years ago (I promise the paint doesn't look that mottled in person - it's a weird camera artifact):

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