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Old Sep 27, 2013, 12:44 PM
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Österreich, Stmk., Graz-Umgebung
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Build Log
F-104 Starfighter "Tetris" for 90mm with lenght 2,4m

Now it's got me again - with the "tetris flyer puzzle".
For about 10 days, piling up and piling up again yellow foam parts on a small countertop in our kitchen ...

It´s the F-104 "shortkit" from "bukvorez.ru"
http://www.rcgroups.com/forums/showthread.php?t=1953898

scale = about 1:7
L = about 2,38 m (rather longer, because the rudder!)
Wsp = approximately 1,10 m incl tiptanks
for 90mm EDF

Meanwhile, I've put most sections together and found that the inlet cross-section fits with cone for a 90mm edf - BUT without inlet cones - would also fit a 120mm edf and get enough air !!
That brings new opportunities and so my build could be a little complicated again ...

But I might also need some good advice for the floating elevator ... Since I do not know exactly how that should be supported most sense.
The fin is 18mm wide at the hing point.

The nose section should to be removeable and so the whole plane should then be in two parts. Nose cone with about 75cm length, and the back part with the wings and about 1,6 m.

Here are the first pictures:

greeting
Georg
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Last edited by GeorgeStyriaII; Sep 27, 2013 at 12:54 PM.
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Old Sep 27, 2013, 12:56 PM
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Wade Joos's Avatar
United States, UT, Salt Lake City
Joined Aug 2002
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Good start

Looks like you have a good start on your puzzle.
Keep up the good work
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Old Sep 27, 2013, 01:01 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
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Nice work George.

Cheers,
Eric B.
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Old Sep 27, 2013, 02:02 PM
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Russia, Moscow, g. Moskva
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Old Sep 27, 2013, 02:16 PM
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Great,
I will follow this thread with great interest..!
regds
ger
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Old Sep 27, 2013, 02:22 PM
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Denver CO
Joined Apr 2008
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build by number.

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Old Sep 27, 2013, 03:17 PM
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Österreich, Stmk., Graz-Umgebung
Joined Sep 2011
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Retract

Everybody is welcome here

For the retracts i think about this "F16 - style" from HK: http://www.hobbyking.com/hobbyking/s...4334&aff=82822

The mains should be at the end of area 29 and the front wheel at area 15/16.

We will see.

George
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Old Sep 27, 2013, 10:32 PM
Lori, hey, you're home early
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United States, NJ, Trenton
Joined Jan 2004
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Looking good. I'm following this build.
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Old Sep 28, 2013, 03:26 AM
Use your imagination....
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Turkey, Izmir, Seferihisar
Joined Oct 2007
1,165 Posts
F 104 my favorit aircraft, good luck.

Cem
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Old Sep 29, 2013, 01:22 AM
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George, I was wondering how to assure while stacking all these parts on top of each other that you get a straight fuselage..Have you already figured out?
br ger
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Old Oct 03, 2013, 05:11 AM
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Hi Ger,
thats not so difficult, but you should always look for this "problem" while the assembling.
I glue the most section on a flat table, so that one side is always flat. An when i glue one ready section on top of the other ( about 5 sektions at one time), then i use a woodplate or glassplate with some extra weight on top of the "tower", while the glue is drying....

Here some pictures from the sektion where the fan will be...

Regards,
George
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Old Oct 05, 2013, 03:11 AM
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Joined Dec 2008
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Hello George,
Thanks for posting the pictures..Its big!
Have you already made some thoughts how to stiffen this long fuselage? Does it get stringers inside? Or just some extra layer of glass? I understand from previous posts that you plan to stay below the 5kg all up weight..
regds
Ger
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Old Oct 05, 2013, 03:34 AM
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One more thing; would it be possible to build the fuselage in 2 halves? It looks like all sections are split at the center line. In this way you can build on a flat surface and assure it is straight in all directions..But strange thing is that I have not seen this approach in any of the Tetris builds..
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Old Oct 05, 2013, 04:34 AM
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Quote:
Originally Posted by Ger v.d. Hulst View Post
One more thing; would it be possible to build the fuselage in 2 halves? It looks like all sections are split at the center line. In this way you can build on a flat surface and assure it is straight in all directions..But strange thing is that I have not seen this approach in any of the Tetris builds..
Hi Ger, yes, thats possible and a good idea for easier sektion. I build the front sektion of my Saab and also the front from the Su27 and the MiG29/35 this way.
When you have a lot of pieces inside - than it´s not so easy to build in two halfs.

To strenghen the long fuselage i think of using a carbon tube on the top of the back - so the half of the tube you can see from the outside.
In the bottom inside of my Saab105 i use a balsa with 5x30mm glued with epoxy.

And maybe it´s strong enought with 1x 80g/m˛ and 1x 50g/m˛ layer of glass...

George
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Old Oct 26, 2013, 04:08 AM
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Hallo George,
Any news on F-104?
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