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Bf109 Trop Filter construction

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Old 09-23-2009, 01:50 PM
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JGrc
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Default Bf109 Trop Filter construction

During the build of the 1/4.9 scale Fliteskin 109 F4 model, I bumped into the problem of building a Tropical Filter to replicate the Afrika Corps aircraft that was flown by Joachim Marseille. For the guys that have expresed interest in this version of the 109 and were not able to follow the RCSB forum, I am re-posting the steps.


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Old 09-23-2009, 01:57 PM
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Default RE: Bf109 Trop Filter construction

I started with a Factory Drawing blown up to the correct size for the scale and a picture to add details.
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Old 09-23-2009, 02:02 PM
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Default RE: Bf109 Trop Filter construction

I used a plastic bottle and some 3/32 balsa sheet (previously wet) and formed the core of the filter.
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Old 09-23-2009, 02:11 PM
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Default RE: Bf109 Trop Filter construction

For the eye lids of the filter, I sanded a wood block and vacummed formed the dome, this will not be functional.

Then I used fine mesh from the paint store to duplicate the filter screen. Over the screen I added strips of fliteskin for the front, rear and top.

The brackets that support the front end of the filter, are made of two pieces of brass airfoil tube with a short 2-56 threated rod soldered inside. Nuts hold the brackets from inside the fuse.
Old 09-23-2009, 02:13 PM
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Default RE: Bf109 Trop Filter construction

These pics show the brackets and filter in place
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Old 09-23-2009, 02:25 PM
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Default RE: Bf109 Trop Filter construction

To complete the filter I added thin masking tape to simulate the overlapping of the filter lips. Also there are 2 straps around the filter. These are made of thin brass strips 2.5mm wide from www.specialshapes.com and held with 00-90 bolts and nuts.

The filter is now primed and ready for paint.


JG
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Old 09-23-2009, 06:51 PM
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Default RE: Bf109 Trop Filter construction

Nice job! You needed something. You made it yourself. This is what scale modeling is all about.
Old 09-24-2009, 08:56 AM
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Default RE: Bf109 Trop Filter construction

fletcher,

sometimes the only way to get things done is to do them yourself!

JG

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