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RE: new design: Strega 45 - 6/5/2008 9:16:49 PM   
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From: HaarlemNH, NETHERLANDS
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Thank you for the advise but I do not understand the front construction. Can you tell me more ? The end with the bolt is clear.
That is no problemm to make. Thanks again.

(in reply to stressball)
       Post #: 351

RE: new design: Strega 45 - 6/6/2008 6:30:17 PM   
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Posts: 466
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From: HaarlemNH, NETHERLANDS
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When the glass/ epoxy on the wing has been dried sand the edges with fine sandpaper like 180 to 280. Later I will sand the complete wing for the second layer of epoxy before the primer.

I have used masking tape on the bottem to hold the aileron on the same height as the wing.

The wood is very dry so it has to be sealed. There are two ways use a light woodsealer for the paper on sailplanes and after drying sand it fine and lay down the glass on the dry and fine sanded wing. This method works very easy because you can move the glasscloth. The wood will have to be sealed to prevent dry spots in the hardened glass because with one layer of epoxy without sealer the wood will soak the epoxy out off the glasscloth and you will get white dry spots. These spots are hard to make wet again because it is half hardened.

The second way is the hard way and you wil have to have experience with glasscloth. You start with cutting the glasscloth and put it besides the wing. Give the wood a layer with the very thin epoxy and lay down the glass on the wet epoxy. Start rolling in the middle to the sides. With the top of the roller you can move the glass the way you want but do it carefully and only short movements.
When all is done take a very sharp knife and cut the glass on the ends of the ailerons to prevent air bubbles. Check the wing if all is OK and start with the stab. The glass will hang over the edges of the wing, check the edges, LE and tips etc.
Before the stab and wing must have been sanded (fine sandpaper) on both sides.

When dry the edges of the wing and aileron will be fine sanded.
The hinge line will be sanded carefully.

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< Message edited by look -- 6/6/2008 6:51:40 PM >

(in reply to look)
       Post #: 352

RE: new design: Strega 45 - 6/6/2008 6:38:07 PM   
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Posts: 466
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From: HaarlemNH, NETHERLANDS
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I think the best and strongest solution for the belly pan is 2 small bolts in the front and one or two at the back. Glue a piece of plywood in the fuse and in the belly pan on the same spot. In the fuse the blind nuts will be mounted and the belly pan will come the bolt so you will see nothing on the sides. First drill from the underside the belly pan, drill al holes through the plywood and glass the same size as the bolts. Mount the belly pan with tape and drill the holes using the holes in the belly pan as markers to drill the glass and plywood in the fuse. Mount the blind nuts on a small piece of plywood and glue that on the plywood in the fuse and using the bolts to hold it. All must fit the right way.

< Message edited by look -- 6/6/2008 6:40:18 PM >

(in reply to look)
       Post #: 353

RE: new design: Strega 45 - 6/6/2008 6:41:48 PM   
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The rudder has been drawn and the cnc cutting files are ready to cut the rudder. So tomorrow the rudder is ready for sanding.

(in reply to look)
       Post #: 354

RE: new design: Strega 45 - 6/8/2008 2:25:15 PM   
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From: HaarlemNH, NETHERLANDS
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The parts for the rudder has been cnc cut and the mid blocks have been glued:

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(in reply to look)
       Post #: 355

RE: new design: Strega 45 - 6/8/2008 2:27:12 PM   
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The first thing you have to do is sanding the blocks in the V- shape. Before I have glued before shipping the 1mm plywood formers with the V- shape:

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(in reply to look)
       Post #: 356

RE: new design: Strega 45 - 6/8/2008 2:32:38 PM   
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Posts: 466
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From: HaarlemNH, NETHERLANDS
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Glue the balsa top en bottem blocks with Elmers white and sand them:

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(in reply to look)
       Post #: 357

RE: new design: Strega 45 - 6/8/2008 2:34:47 PM   
look


 

Posts: 466
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Glue the 1mm plywood top former with the V shape on top of the stab:

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(in reply to look)
       Post #: 358

RE: new design: Strega 45 - 6/8/2008 2:37:24 PM   
look


 

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Glue the four blocks to one block, these are coming under the control horns:

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(in reply to look)
       Post #: 359

RE: new design: Strega 45 - 6/8/2008 2:38:47 PM   
look


 

Posts: 466
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Glue the blocks on the rudder but mount first a Dubro 116 hinge :

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(in reply to look)
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RE: new design: Strega 45 - 6/8/2008 2:41:42 PM   
look


 

Posts: 466
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Sand the block in the shape of the rudder:

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       Post #: 361

RE: new design: Strega 45 - 6/8/2008 2:43:59 PM   
look


 

Posts: 466
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Glue the blocks for the other side together and when dry on the rudder again when dry sand in the shape of the rudder:

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< Message edited by look -- 6/8/2008 2:44:37 PM >

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       Post #: 362

RE: new design: Strega 45 - 6/8/2008 2:46:34 PM   
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Posts: 466
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Apply some drops of ZAP pink to make the balsa harder:

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(in reply to look)
       Post #: 363

RE: new design: Strega 45 - 6/8/2008 2:50:26 PM   
look


 

Posts: 466
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From: HaarlemNH, NETHERLANDS
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Use no accelarator on the ZAP. When dry sand the rudder in the V- shape carefully:

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(in reply to look)
       Post #: 364

RE: new design: Strega 45 -