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F104g 1:4 scale

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Old 08-08-2017, 12:55 AM
  #201
dionysusbacchus
 
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Quote:
Originally Posted by Damo260 View Post
I'm about to start finishing off sheeting the center section just a couple of questions fuel tanks and were are we going to put them I'm think of get a custom set made from CMJets tanks and next how are we going to secure the wings

Damo
I guess you missed it in my earlier posts, but you can see my wing attachment screws in the pictures I posted.

On the wing side, I glued some 1/4" ply out at the end of the aluminum spar, drilled and tapped it for a set screw. I will keep the spars in the wings because they are small enough for me to transport and keep in the shop.

Next I added 1/4" ply to the fuselage (see pictures) and drilled and tapped for screws. Ideally I would like the screws more towards the ends of the spars, but it was the only place to put them on the fuselage.

Right now I have a 1 gallon tank just in between the split of the intakes. I will also add 2 additional tanks where the stock landing gear were located.

Right now I'm building another Skymaster F-4, this one is for me, but I will get the 104 glassed before the summer is out. I plan to maiden the 104 early next year.
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Old 08-12-2017, 11:51 AM
  #202
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Hey Luke

Sorry for the late reply been flat out with work and family not much building going on. I thought it would be something like that for the secure of the wings but I've also been thinking of leaving the aluminum spar in the fuselage I'll have a play around with that and let you know how it go's. I'll send a email to CMJets tanks and see what he has got. Love the F-4s but already pick up a side project a ESM PC-21 I'm going to convert to a turbo prop and repaint in the Australian colour scheme and I'll need Mirce to me a scale detail set for it . Maybe next year for a F-4.

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Old 08-12-2017, 12:58 PM
  #203
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No problem, I'll made all sets you need...

Mirce
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Old 08-12-2017, 01:14 PM
  #204
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I have an F4!
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Old 08-12-2017, 01:41 PM
  #205
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No problem, I'll made all sets you need...

Mirce
Thanks Mirce I'll find some good drawings and I'll get them to you
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Old 08-12-2017, 01:45 PM
  #206
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I have an F4!
Nice I like twin
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Old Yesterday, 08:30 AM
  #207
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I do get some time to work on the 104, got the last of the servo installation figured out, the elevator. Early in the project I was just going to use the external linkage, I would prefer to have it internal, but that ship has sailed. This will make disassembly and maintenance/inspection much easier. Plus painting all the linkage with the plane makes it almost completely disappear from a short distance away.

The attachment point with PC board material may be a bit overkill, but it will almost always be pulling (up elevator) so I wanted piece of mind. I figured that the best point for the arm was right over the front spar on the stab, 100 percent throw will give me some extra if I need it, but for the stock recommended throw the servo will only need about 70 percent travel.

The sheeting will be glued back on and the end capped and sanded for a good fit on the vertical.
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Last edited by dionysusbacchus; Yesterday at 08:32 AM.
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