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Falke T-61A Cliff Charlesworth Plans.**

Posted: 22 Dec 2020, 07:47
by Max Wright
This is the subject. It formed part of the South Australian Scouts Association Air Division.

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This is my research sheet and Cliff's book.

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T-61A 1.JPG (11.16 KiB) Viewed 5648 times

Here is my new steel build table (Zincalume on 16 mm MDF).

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And my magnetic building devices.

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I found that when I unpacked it, the two Ribs 1 had been inadvertently left out. Cliff (Evans), tried to post me replacements but they fell victim to the COVID lurgy and disappeared into the ether. So I made two more from copying the others. Good practice. 8-) Thanks for trying, Cliff. ;)

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To get my head around the different angles of the wings, I tried a new strategy. I assembled fuselage frames 3,4 and 5 and installed the Rib sisters to those frames.

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This gave me a jig to set up my wing spars.

More to follow . . .

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 22 Dec 2020, 08:04
by Max Wright
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Here the two spars are being built.

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And now the Graupner boxes are being epoxied in place.

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Now I can build each wing around its spar and hopefully they will sit correctly.

Fingers crossed . . .

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 22 Dec 2020, 08:22
by Max Wright
OK On we go . . .

T61-A 15.JPG


I will live to regret glueing those rib sisters in place, but . . .

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When I checked Rib 1 with the plan, it was 5 mm too long. Remember their sisters?

So, I fixed the spar and the trailing edge on the plan and ignored the overhang.

I laminated some 3 mm balsa and set about adding the front sections of the ribs.

I made a device for sitting each rib on the table and measuring where to cut 9 mm off its nose.

It all worked out well.


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Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 22 Dec 2020, 08:34
by Max Wright
Still more . . .

For a bit of a diversion, I installed the first of the wing joiner anchors.

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Then I found that the balsa wing tip rib was very flimsy and easily damaged (how did I find this out?), :oops:

So I cut sisters out of 3 mm ply and added them.

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Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 22 Dec 2020, 08:49
by Max Wright
We're in the home stretch . . .

Keeping the spar and trailing edge firmly locked on to the plan, I then cut the ribs and glued them in place.

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. . . and continued to assemble the other woody bits to the device.

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You can see that I've remembered the crank. The washout has also been incorporated on the tip end. ;)


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Also the wing joiner anchor and the anti-rotation pin are now in place.

Tomorrow, the remaining woody bits go on the top and the whole catastrophe will be turned over and wooded. :ugeek:

Then, it's on to the aileron.

Woo Hoo!

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 22 Dec 2020, 09:21
by Peter Balcombe
Well done Max. Its looking good :)

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 22 Dec 2020, 09:24
by Max Wright
Thanks, Peter. 8-)

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 23 Dec 2020, 08:12
by Max Wright
I have to deal with another diversion. :?

Remember that I made a jig out of fuselage frames 3,4 and 5?

Well, I've discovered that frame 4 is 4 mm narrower than it should be.
T-61A 31.JPG

No biggie - I made a doubler out of 3 mm balsa and glued it on to the sister.

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Then I used my 1.1 metre sanding bar to fair it in.

I'll do the other side later.

Cheers

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 27 Dec 2020, 05:00
by Max Wright
I think that I've got the wing worked out . . .

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I might leave it there and get the left one to this stage before I move forward (also while I can still remember what I did). :lol:

Re: Falke T-61A Cliff Charlesworth Plans.

Posted: 27 Dec 2020, 08:50
by B Sharp
That's coming along nicely Max. There is no need to forget your progress, just use your photos from this build thread.
Brian. :)