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  #81  
Old 05-07-2021, 12:12 PM
Erik Zwaan's Avatar
Erik Zwaan Erik Zwaan is offline
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The wings - Part 3

Hello and thanks once more for your reactions . Indeed, the back and white (or light blue and black) underside was meant for distinguishing between friend and foe, both from the air as well as from the ground.

Leif, good to hear from you again, I hope you are well!

Well, the moment of truth has arrived: The upper wing skins and leading edges....

I started with the left top skin. First, make sure that the skin is accurately pre-shaped at the leading edge. To ensure proper alignment, I first glued the skin to the central wing section and in order to reinforce the wing surface, I laminated the inside with paper patches that fit in between the structure. I didn’t do this at the bottom side. Laminating is not required but over the years it has become a habit that prevents accidental denting and unwanted “shining through” of ribs and spars.

Then the entire skin and central wing section was glued onto the ribs and spars, with exception of the leading edge. I used UHU for this (acetate glue). The fit is very good.
Then bit by bit I applied a bit of white glue at the pre-shaped edge of each of the upper and lower skins and mated them by gently rubbing the edges with my fingers. After working the entire length of the wing this way I finally ran the shaft of a screwdriver along the wing to smooth the joint (is this what you call "burnishing"?).
The result is an almost perfectly sharp leading edge. To my surprise and relief, the entire process was relatively fast and above all, much easier than expected. In this respect, all credits to the design of this model. The pictures should give an impression of the assembly. The right wing was done in a similar way.

Nothing particular to note on the ailerons, pretty standard work and they fit well on the hinges.

Next are the remaining wing details and then the entire assembly can be fixated to the fuselage.

Erik
Attached Thumbnails
Halinski 1:33 Spitfire Mk 1a-img_e5251.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5252.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5253.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5254.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5257.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5259.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5260.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5261.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5265.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5268.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5269.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5270.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5271.jpg  
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  #82  
Old 05-07-2021, 01:54 PM
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birder birder is offline
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Very skillfully done. I like your method and ..results!
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regards Glen
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  #83  
Old 05-07-2021, 02:50 PM
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romanmodels romanmodels is offline
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good work Erik
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  #84  
Old 05-09-2021, 02:05 AM
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Diderick A. den Bakker Diderick A. den Bakker is offline
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How do you mark the exact position of the reinforcements inside the wing surfaces?!
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  #85  
Old 05-09-2021, 02:05 PM
Erik Zwaan's Avatar
Erik Zwaan Erik Zwaan is offline
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The wings - Part 4

Thank you Glen, David and Diderick. The location of the reinforcement patches is a matter of indicating with a pencil on the inside where the ribs and spars will be glued. Then I cut out the patches from a sheet of 160 grams paper, just inside the lines to ensure that the internal structure will not clash with the reinforced skin. It's simple but effective as because of the lamination the outside surface remains firm and flat, without any dimple.

Some other details have been added to the wings as well, amongst others the big radiator air intake and wing ribs at the trailing ends, which will be visible as I intend to glue the flaps in downward position.

Finally, I attached the wings to the fuselage. Once again, the fit is very good. As you can see in the last picture, there is a rather peculiar opening at each wing root. According to the building instructions, that part of the skin needs to be cut away but I wonder what for. It will leave a big opening, even after the wing fillets have been installed. I kept the cut-away pieces, they might come in handy at one point in time.

Next are the cowling underside and wing fillets. Then I also hope to solve the misfit at the fuselage bottom side.

Erik
Attached Thumbnails
Halinski 1:33 Spitfire Mk 1a-img_e5210.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5211.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5212.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5258.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5272.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5274.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5275.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5276.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5279.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5289.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5291.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5337.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5338.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5339.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5340.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5341.jpg  
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  #86  
Old 05-10-2021, 10:33 PM
smithdr smithdr is offline
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Nice progress, Erik.

It always amazes me that when these things are done right, they give a nice Hasegawa or Tamyia plastic model a true run for their money.


Looks great with that wing in place...Dan
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  #87  
Old 05-10-2021, 10:45 PM
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wireandpaper wireandpaper is offline
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Dear Erik:

It is progressing very nicely.

I get inspired and sometimes I wonder about doing one of those.
Then I look at my allotted space and, well, dreaming is free!!!!!
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  #88  
Old 05-15-2021, 08:22 AM
Erik Zwaan's Avatar
Erik Zwaan Erik Zwaan is offline
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Wing fillets and remaining wing details

Thanks Dan and wireandpaper! The Spitfire is not really a big model, with a bit of space you should be able to accommodate it somewhere .

The underside of the cowling consists of a few parts that need to be curved carefully and I used additional small strips of paper as joining strips. The fit to the cowling sides is tight but very accurate. Only marginal gaps remained, which I filled with construction kit that acts as putty. The color of the kit is light brown and you may notice it on the pictures. Pending on where it has been applied, I will correct the camouflage either with cockpit green (somehow that color fits the most, instead of dark green) and earth brown.

Then come the wing fillets. To be shaped concave, and convex at the front side. Aligning the left one was easy as the letters ZP can be used as reference point. In general, it’s best to start gluing from the rear side along the fuselage and then again from the rear to the frontside along the wing. I used a small needle to lift up the fillet just sufficiently to be able to apply a bit of glue underneath, bit by bit. Also, here a perfect fit, only needed to apply kit at the front end to close a small gap as the fillet appeared just a bit too tight.

The bottom fillets at the rear are easy to install but you need to curve them a bit inward at the wing side. And then these strange openings – I used the cutaway pieces of the wing to partly close them off (within the red circle). It fits well – perhaps it is indeed the intention to do so. Hmmm, perhaps a look at the Polish building instructions so every now and then would shed some light on a “mystery” like this?

With the wings completed I also corrected the narrow gap at the fuselage underside by filling it with a small paper strip and paint touch-up. Other minor corrections with kit and paint.

Finally, the carburetor air intake. The carburetor was a bit of a flaw in the design of the early Spitfire. At negative g-forces coming out of a roll, this would starve and then flood the engine. Something the ME-109 didn’t have, as its engine was fuel injected.

That’s it for now. Next will be the canopy.

Erik
Attached Thumbnails
Halinski 1:33 Spitfire Mk 1a-img_e5342.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5343.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5347.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5349.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5369.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5370.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5373.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5375.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5378.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5381.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5382.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5383.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5385.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5386.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5387.jpg  

Halinski 1:33 Spitfire Mk 1a-img_e5388.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5391.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5411.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5412.jpg   Halinski 1:33 Spitfire Mk 1a-img_e5414.jpg  

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  #89  
Old 05-15-2021, 09:15 AM
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abhovi abhovi is offline
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Always nice to see how it should have been done, Erik.:-)
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  #90  
Old 05-15-2021, 12:36 PM
smithdr smithdr is offline
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Dead sexy fillet work, Erik. Fantastic!


Dan
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