Jilles Smits 1/3 scale SG38

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

Post by Cliff Evans » 06 Apr 2019, 16:48

Looking good Peter.

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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 » 10 Apr 2019, 19:33

Tail feathers & fuselage covering is now done, so have started the wings today after installing the aileron servo & cable run.
First wing upper side covered this afternoon & aileron dry fitted to see what it will look like.
Initial shrinking has been done, but final go, plus dope sealing coats will be done once everything has been covered.
FAC8549F-3413-4992-A772-BFC55961F9EC.jpeg
First wing top covering

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Peter Balcombe
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Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 19 Apr 2019, 16:46

Getting there!
Control runs & rigging still to be sorted, plus hiding the Rx in a seat back cushion, hopefully avoiding the need for the pilot to undergo painful back surgery.
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Covered front_small.jpg
Covered front view
Covered rear_small.jpg
Rear view

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Cliff Evans
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Re: Jilles Smits 1/3 scale SG38

Post by Cliff Evans » 19 Apr 2019, 18:12

Wow, great job Peter.

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VinceC
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Re: Jilles Smits 1/3 scale SG38

Post by VinceC » 19 Apr 2019, 21:36

Oh! So that's what a wireless is?

Nice work Peter

StephenB
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Re: Jilles Smits 1/3 scale SG38

Post by StephenB » 23 Apr 2019, 17:09

Beautiful job Peter, very impressive - well done!

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Peter Balcombe
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Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 25 Apr 2019, 20:29

A small altimeter equipped Rx has been installed fairly neatly on the seat back & a blue foam pad cut to follow the seat-back curve and with a slot for the RX & cables.
The plan is to cover the pad in material to ressemble a full back cushion & the pilot will cover the Rx when in place ;)
Attachments
Seat back pad_small.jpg
Seat back cushion pad

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Peter Balcombe
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Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 27 Apr 2019, 14:44

Attention has now turned to fixing the pilot figure (kindly supplied by Wilson) onto the seat using shoulder & lap straps as on the full size.

The full size has attachment points for the shoulder straps on/on the rear of the main mast roughly level with the top of the seat, whilst the lap straps attach via wire strops to points near the aileron cable attachment bar mounted on the top of the fuselage box, just behind the mast base.

I decided to make up two simple brackets, attached to the rear of the main mast & on the top of the fuselage box as shown below. M2 clevises and C/L adjusters allow easy removal and minor tension adjustment, with small piano wire loops (easily made with a K&S small wire bender) linking the harness straps to the C/L adapters.

The photos below show the general arrangement with the initial C/L wire loop strops, and then with the replacement piano wire ring (like a key ring loop) links.
Attachments
66C0EF8B-DCA6-4D7A-9016-267BAE12AE6F.jpeg
Harness attachment brackets
550F88FF-02C4-49D0-9BAC-E1AE62D4AA3D.jpeg
Piano wireloops

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Peter Balcombe
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Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 29 Apr 2019, 18:38

A rigging day today, with 10 out of the 14 wires now made up (lower wing mid & rear).
Meanwhile, the control stick has received its handgrip and Cliff''s 3D printed top stopper has been fitted (photo when paint touch up has dried).
Seat back cushion has received its covering of material & is attached using Velcro.
Nearly ready for balancing & final weighing ;)
Attachments
With rigging_small.jpg

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Peter Balcombe
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Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 30 Apr 2019, 10:34

And the completed joystick with cord grip :)
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9117EEE7-DC45-487A-87F6-CC7BEAACC37F.jpeg
Joystick grip

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