Jilles Smits 1/3 scale SG38

Let us all watch your new project progress.
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Cliff Evans
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Location: Bristol
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Re: Jilles Smits 1/3 scale SG38

Post by Cliff Evans » 28 Nov 2018, 11:01

Pilot has arrived from Wilson and been delivered to Peter. I feel sure that photos will follow! I must say that the pilot is excellent quality and very fitting for this project.

Still looking forward to Wilsons budget range though!

SOTIRIS
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Location: ATHENS

Re: Jilles Smits 1/3 scale SG38

Post by SOTIRIS » 12 Dec 2018, 15:55

Great,job!!! We are looking forward for the progress.

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Peter Balcombe
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Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 13 Dec 2018, 12:30

I had forgotten that I hadn't updated the thread for a while!
The 1st wing structure is now more or less complete & awaiting aileron horns & bracketry before the 0.4mm ply skins are put on.
The 1st wing aileron is nearly complete, just needing the LE to be shaped.

Also, I have put together the 2nd wing structure over the past couple of days, including the aileron.
Still a lot of finishing work to do yet, but I now have all of the major structures complete :)

In the meantime, Wilson has delivered a 1/3 scale old timer pilot to Cliff, so I had better get on with the seat and the metalwork ;)
Attachments
Both Wings.jpg
Both wings
Both Wings separate.jpg
Separate wings
Ailerons.jpg
Both ailerons
Wilson Pilot.jpg
Pilot

SOTIRIS
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Location: ATHENS

Re: Jilles Smits 1/3 scale SG38

Post by SOTIRIS » Yesterday, 07:36

Bravo, Peter! What kind of wood did you use to wings?

SOTIRIS
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Re: Jilles Smits 1/3 scale SG38

Post by SOTIRIS » Yesterday, 07:42

What's the best choice of wood for spars?

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Peter Balcombe
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Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » Yesterday, 14:38

Sotiris,
At 1/3 scale all of the strip wood, including the spars is Spruce (as available from UK model shops).
Some strip lengths have to be made by splicing two standard lengths together (I use a 50mm long splice with epoxy glue).

SOTIRIS
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Location: ATHENS

Re: Jilles Smits 1/3 scale SG38

Post by SOTIRIS » Yesterday, 20:52

Thank you Peter! Are the hinges Robart type?
I noticed that, the leading edges of elevator and ailerons are square shaped and the rear spars too.I wonder,how the control movement can be achived with so small gap. Any explanation is useful because the SG38 is my first building attempt.

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Peter Balcombe
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Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » Yesterday, 21:09

Sotiris,
Yes, the hinges are all Robart pin hinges.
The first aileron built has its balsa leading edge strip fitted but not yet shaped into a ‘Vee’ to allow up & down movement against the flat wing rear hinging strip. The hinge rotation point is recessed back into the control surface.
The 2nd aileron build has not yet had its balsa leading edge strip fitted, still shows the internal backing strip.
This arrangement is the same on all control surfaces (I.e. flat hinging surface, angled control surface leading edge).

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